Widely Tunable Parametric Amplification and Pulse Train Generation by Heating a Photonic Crystal...

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Record 1 of 100Author(s): Kudlinski, Alexandre; Mussot, Arnaud; Habert, Remi; Sylvestre, ThibautTitle: Widely Tunable Parametric Amplification and Pulse Train Generation by Heating a Photonic Crystal FiberSource: IEEE JOURNAL OF QUANTUM ELECTRONICSVolume: 47Issue: 12Pages: 1514-1518DOI: 10.1109/JQE.2011.2173159Published: DEC 2011Abstract: We describe a simple technique that allows for the achievement of widely tunable parametricgeneration in a photonic crystal fiber. This is achieved by heating the fiber and using a specific phase-matchingcondition in the normal dispersion regime which is highly sensitive to temperature. Experimental results show asideband tunability of about 17 THz in the 800 nm and 1550 nm spectral bands by heating the fiber from roomtemperature to 500 degrees C, leading to a tuning rate of 34 GHz/degrees C. By adding a small tunablecontinuous-wave seed together with the pulsed pump, we further show the generation of sub-nanosecond pulsestunable around 800 nm through parametric amplification.Times Cited in Web of Science: 0Total Times Cited: 0ISSN: 0018-9197Book DOI:

Record 2 of 100Author(s): Nasser, Nour; Fanjoux, Gil; Lantz, Eric; Sylvestre, ThibautTitle: Tunable optical delay using parametric amplification in highly birefringent optical fibersSource: JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICSVolume: 28Issue: 10Pages: 2352-2357Published: OCT 2011Abstract: We theoretically study parametric amplification in highly birefringent optical fibers and show thatlarge tunable optical delay or advancement can be achieved via slow and fast light propagation. We provide aclear derivation of the formula for the optical delay that originates from the imaginary part of the parametricgain. We also perform numerical simulations in both normal and anomalous dispersion regimes. In the lattercase, results show that large nanosecond optical delay could, in principle, be obtained at 1550 nm in a 1-km-longpolarization-maintaining fiber. We further demonstrate that the optical delay and advancement rely on a group-velocity locking between the two cross-polarized signal and idler pulses. (C) 2011 Optical Society of AmericaTimes Cited in Web of Science: 0Total Times Cited: 0ISSN: 0740-3224Book DOI:

Record 3 of 100Author(s): Al Fares, Luai; Devaux, Fabrice; Chauvet, Mathieu

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Title: Adiabatic self-focusing in media with spatially variable nonlinearitySource: OPTICS LETTERSVolume: 36Issue: 19Pages: 3843-3845Published: OCT 1 2011Abstract: An optical medium whose nonlinearity can be spatially adjusted is considered to study beamreshaping. The concept is applied to perform adiabatic self-focusing of broad beams. Experimental results areobtained in a photo-refractive lithium niobate crystal where the self-focusing nonlinearity is controlled overpropagation by a temperature gradient. As a demonstration, gradual self-focusing is shown to transform anincoming beam into an output circular spot 10 times smaller over a 2 cm long crystal submitted to a 30 degrees Ctemperature gradient. Once formed, the adiabatic self-focused beam has inscribed a funnel waveguide in thecrystal. (C) 2011 Optical Society of AmericaTimes Cited in Web of Science: 0Total Times Cited: 0ISSN: 0146-9592Book DOI:

Record 4 of 100Author(s): Passier, Remy; Chauvet, Mathieu; Wacogne, Bruno; Devaux, FabriceTitle: Light-induced waveguide by a finite self-trapped vortex beam in a photorefractive mediumSource: JOURNAL OF OPTICSVolume: 13Issue: 8Article Number: 085502DOI: 10.1088/2040-8978/13/8/085502Published: AUG 2011Abstract: We report the formation of a 2D waveguide induced by a self-trapped vortex beam in aphotorefractive-photovoltaic medium. Demonstrations are performed by monitoring the self-trapping dynamic ofan annular vortex beam in a LiNbO(3):Fe crystal. Control of the experimental observations is consistent with theunderlying physics revealed by a numerical model.Times Cited in Web of Science: 0Total Times Cited: 0ISSN: 2040-8978Book DOI:

Record 5 of 100Author(s): Droques, M.; Barviau, B.; Kudlinski, A.; Taki, M.; Boucon, A.; Sylvestre, T.; Mussot, A.Title: Symmetry-breaking dynamics of the modulational instability spectrumSource: OPTICS LETTERSVolume: 36Issue: 8Pages: 1359-1361Published: APR 15 2011Abstract: We demonstrate in an optical fiber that third-order dispersion yields an unexpected symmetry-breaking dynamics of the modulational instability spectrum. It is found in particular that this spectral asymmetrydoes not smoothly and monotonically increase when approaching the zero-dispersion wavelength. Instead, it


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exhibits several local extrema and it can even be reversed at a particular dispersion value. We interpret thisbehavior as resulting from interactions between dispersive waves and solitons generated from modulationinstability. (c) 2011 Optical Society of AmericaTimes Cited in Web of Science: 0Total Times Cited: 0ISSN: 0146-9592Book DOI:

Record 6 of 100Author(s): Stiller, B.; Delque, M.; Beugnot, J. -C.; Lee, M. W.; Melin, G.; Maillotte, H.; Laude, V.; Sylvestre, T.Title: Frequency-selective excitation of guided acoustic modes in a photonic crystal fiberSource: OPTICS EXPRESSVolume: 19Issue: 8Pages: 7689-7694Published: APR 11 2011Abstract: We present experimental and numerical results demonstrating the simultaneous frequency-selectiveexcitation of several guided acoustic Brillouin modes in a photonic crystal fiber with a multi-scale structuredesign. These guided acoustic modes are identified by using a full vector finite-element model to result fromelastic radial vibrations confined by the wavelength-scale air-silica microstructure. We further show the strongimpact of structural irregularities of the fiber on the frequency and modal shape of these acoustic resonances. (C)2011 Optical Society of AmericaTimes Cited in Web of Science: 0Total Times Cited: 0ISSN: 1094-4087Book DOI:

Record 7 of 100Author(s): Bernal, M. -P.; Amet, J.; Safioui, J.; Devaux, F.; Chauvet, M.; Salvi, J.; Baida, F. I.Title: Pyroelectric control of the superprism effect in a lithium niobate photonic crystal in slow lightconfigurationSource: APPLIED PHYSICS LETTERSVolume: 98Issue: 7Article Number: 071101DOI: 10.1063/1.3554373Published: FEB 14 2011Abstract: In this letter, tunability of the beam deviation on a two dimensional lithium niobate photonic crystalsuperprism is experimentally demonstrated thanks to the pyroelectric effect. Since the superprism geometry hasbeen designed in a slow light configuration, the observed pyroelectric beam steering tunability is considerablyenhanced. A beam deviation of 3.4 degrees/degrees C has been experimentally measured for a workingwavelength of 1565 nm. Direct applications can be found as ultracompact highly effective temperature variationsensors. (C) 2011 American Institute of Physics. [doi:10.1063/1.3554373]Times Cited in Web of Science: 0Total Times Cited: 0ISSN: 0003-6951Book DOI:


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Record 8 of 100Author(s): Parravicini, Jacopo; Safioui, Jassem; Degiorgio, Vittorio; Minzioni, Paolo; Chauvet, MathieuTitle: All-optical technique to measure the pyroelectric coefficient in electro-optic crystalsSource: JOURNAL OF APPLIED PHYSICSVolume: 109Issue: 3Article Number: 033106DOI: 10.1063/1.3544069Published: FEB 1 2011Abstract: We report an all-optical method to measure the pyroelectric coefficient p of electro-optic crystals.Through this technique, we first acquire the birefringence variation delta Delta n of the crystal as a function of itstemperature T, both in closed and open-circuit conditions, using a Senarmont phase-compensation configuration.Then the pyroelectric field is deduced from the difference between these two measurements, so it leads to thematerial spontaneous polarization change, whose derivative with respect to the temperature finally gives p. Thistechnique is applied on congruent and stoichiometric lithium niobate. (C) 2011 American Institute of Physics.[doi:10.1063/1.3544069]Times Cited in Web of Science: 1Total Times Cited: 1ISSN: 0021-8979Book DOI:

Record 9 of 100Author(s): Delque, Michael; Fanjoux, Gil; Maillotte, Herve; Kockaert, Pascal; Sylvestre, Thibaut; Haelterman,MarcTitle: Symmetry-breaking instability of quadratic soliton bound statesSource: PHYSICAL REVIEW AVolume: 83Issue: 1Article Number: 013807DOI: 10.1103/PhysRevA.83.013807Published: JAN 7 2011Abstract: We study both numerically and experimentally two-dimensional soliton bound states in quadraticmedia and demonstrate their symmetry-breaking instability. The experiment is performed in a potassium titanylphosphate crystal in a type-II configuration. The bound state is generated by the copropagation of theantisymmetric fundamental beam locked in phase with the symmetrical second harmonic one. Experimentalresults are in good agreement with numerical simulations of the nonlinear wave equations.Times Cited in Web of Science: 0Total Times Cited: 0ISSN: 1050-2947Book DOI:

Record 10 of 100Author(s): Vernotte, Francois; Lantz, EricBook Group Author(s): IEEETitle: Statistical biases and very long term time stability analysisSource: 2011 JOINT CONFERENCE OF THE IEEE INTERNATIONAL FREQUENCY CONTROLSYMPOSIUM/EUROPEAN FREQUENCY AND TIME FORUM PROCEEDINGS


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Book Series Title: IEEE International Frequency Control SymposiumPages: 845-849Published: 2011Abstract: The prediction of very long term time stability is a key issue in various fields, such as time keeping,obviously, but also navigation and spatial applications. This is usually performed by extrapolating the measuresobtained by estimators such as the Allan deviation, modified Allan deviation, Hadamard deviation, etc.Unlike the variance estimates, the deviation estimates are severely biased and it is of importance to perform thisextrapolation from a fit over the variance estimates, and not over the deviation estimates. However, the fit shouldbe performed on the log-log graph of the estimates, which corresponds to a least-squares minimization of therelative difference between the variance estimates and the fitting curve. But also in this case, a bias existsbetween the average of the log of the estimates and the log of the true value of the estimated variance.This paper presents the theoretical calculation of this "log-log bias" based on the number of equivalent degrees offreedom of the estimates, shows simulations over a large number of realizations, and provides a reliable methodof unbiased logarithmic fit. Extrapolating this fit yields a more confident assessment of the very long term timestability.Conference Title: 5th Joint Conference of the 65th IEEE International Frequency Control Symposium/25thEuropean Frequency and Time ForumConference Date: MAY 01-05, 2011Conference Location: San Fransisco, CASponsor(s): IEEE; IEEE UFFC; EFTFTimes Cited in Web of Science: 0Total Times Cited: 0ISSN: 1075-6787ISBN: 978-1-61284-110-6Book DOI:

Record 11 of 100Author(s): Stiller, Birgit; Lee, Min Won; Delque, Michael; Bouwmans, Geraud; Kudlinski, Alexandre; Beugnot,Jean-Charles; Maillotte, Herve; Sylvestre, ThibautBook Group Author(s): Optical Society of AmericaTitle: Suppression of SBS in a photonic crystal fiber with periodically-varied core diameterSource: 2011 OPTICAL FIBER COMMUNICATION CONFERENCE AND EXPOSITION (OFC/NFOEC)AND THE NATIONAL FIBER OPTIC ENGINEERS CONFERENCEPublished: 2011Abstract: We experimentally demonstrate 7 dB improvement in Brillouin suppression in a photonic crystal fiberby periodically varying the size of the air-hole-structure by only 7% amplitude while keeping a low attenuationcoefficient. (C) 2010 Optical Society of AmericaConference Title: Conference on Optical Fiber Communication (OFC)/National Fiber Optic EngineersConference(NFOEC)Conference Date: MAR 06-10, 2011Conference Location: Los Angeles, CATimes Cited in Web of Science: 0Total Times Cited: 0ISBN: 978-1-55752-906-0Book DOI:

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Author(s): Boucon, Anne; Sylvestre, Thibaut; Kien Phan Huy; Beugnot, Jean-Charles; Melin, Gilles; Maillotte,Herve; Dudley, John M.Title: Supercontinuum generation by nanosecond dual-pumping near the two zero-dispersion wavelengths of aphotonic crystal fiberSource: OPTICS COMMUNICATIONSVolume: 284Issue: 1Pages: 467-470DOI: 10.1016/j.optcom.2010.09.035Published: JAN 1 2011Abstract: Supercontinuum generation by dual-wavelength nanosecond pumping in the vicinity of bothzero-dispersion wavelengths of a photonic crystal fiber (PCF) is experimentally demonstrated. It is shown inparticular that two pumps at 1535 nm and 767 nm simultaneously pumping near the two zero-dispersionwavelengths of a specially designed PCF yields a combined visible and infrared supercontinuum spectrumspanning from 0.55 mu m to 1.9 mu m. We discuss the generation mechanisms underlying the continuumformation in terms of modulation instability and cascaded Raman generation. Crown Copyright (C) 2010Published by Elsevier B.V. All rights reserved.Times Cited in Web of Science: 0Total Times Cited: 0ISSN: 0030-4018Book DOI:

Record 13 of 100Author(s): Salzenstein, Patrice; Jelinek, Michal; Chembo, Yanne K.; Pogurmiskiy, Maxim; Tavernier, Herve;Volyanskiy, Kirill; Kien Phan Huy; Chauvet, Mathieu; Larger, Laurent; Kubecek, VaclavEditor(s): Bertolotti, MTitle: Resonance measurements techniques of optical whispering gallery mode mini-disc resonators formicrowave photonics applicationsSource: NONLINEAR OPTICS AND APPLICATIONS VBook Series Title: Proceedings of SPIE-The International Society for Optical EngineeringVolume: 8071Article Number: 807104DOI: 10.1117/12.886380Published: 2011Abstract: The aim of this work is to compare advantages and disadvantages of different techniques for couplinga mini-disc-optical-resonator to determine quality factor of its resonance. Optical fiber coupled to a resonatorconsists in a mini disc with whispering gallery modes at its circumference. We choose to work with threematerials and design compact miniresonators. Fused silica is found to be suitable for these applications thanks toits hardness in the range 6-7 and the behavior to mechanical shocks, despite its sensitivity to water pollution.With its tetragonal crystal and a good behavior with risk of water pollution, Calcium fluoride is a good candidatedespite sensitivity to mechanical shocks. Magnesium fluoride is the third material used. As a critical step, tapercoupling is set with a 20nm resolution positioning system. Miniresonator is excited from a system equipped witha tunable laser diode with a tunability from 1490 to 1640 nm and a linewidth narrower than 300kHz. Light iscoupled into the microsphere either from glass or fiber prism or with fiber taper via evanescent field. We havealso used a single frequency 660nm laser diode with a linewidth narrower than 100kHz which can be tuned about10pm to test a single resonant peak. Both sources are used with either a tapered fiber or a filed fiber. Resonanceis observed and quality factor of the resonators is found to be in the range of 10(8).Conference Title: Conference on Nonlinear Optics and Applications VConference Date: APR 19-21, 2011


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Conference Location: Prague, CZECH REPUBLICSponsor(s): SPIETimes Cited in Web of Science: 0Total Times Cited: 0ISSN: 0277-786XISBN: 978-0-81948-661-5Book DOI:

Record 14 of 100Author(s): Schroeder, Jochen; Boucon, Anne; Coen, Stephane; Sylvestre, ThibautTitle: Interplay of four-wave mixing processes with a mixed coherent-incoherent pumpSource: OPTICS EXPRESSVolume: 18Issue: 25Pages: 25833-25838DOI: 10.1364/OE.18.025833Published: DEC 6 2010Abstract: We experimentally demonstrate the existence of multiple, simultaneous, independent four-wavemixing processes in optical fibers. In particular we observe competition between phase-matched and non-phase-matched processes involving the same mixed coherent-incoherent pump. Further investigation reveals thatnarrow-band degenerate four-wave mixing with an incoherent pump can lead to efficient wavelength conversion.(c) 2010 Optical Society of AmericaTimes Cited in Web of Science: 0Total Times Cited: 0ISSN: 1094-4087Book DOI:

Record 15 of 100Author(s): Coen, Stephane; Sylvestre, ThibautTitle: Comment on "Dark pulse emission of a fiber laser"Source: PHYSICAL REVIEW AVolume: 82Issue: 4Article Number: 047801DOI: 10.1103/PhysRevA.82.047801Published: OCT 26 2010Abstract: A recent Brief Report [Zhang et al., Phys. Rev. A 80, 045803 (2009)] presents experimental results inwhich dark pulses are generated in a fiber laser. Contrary to what is presented, the data published in that BriefReport do not support the claim that the duration of the dark dips are in the 8 ps range and that these pulses arerelated to genuine dark solitons.Times Cited in Web of Science: 1Total Times Cited: 1ISSN: 1050-2947Book DOI:

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Author(s): Schroeder, Jochen; Coen, Stephane; Sylvestre, Thibaut; Eggleton, Benjamin J.Title: Dark and bright pulse passive mode-locked laser with in-cavity pulse-shaperSource: OPTICS EXPRESSVolume: 18Issue: 22Pages: 22715-22721Published: OCT 25 2010Abstract: We demonstrate the integration of a spectral pulse-shaper into a passive mode-locked laser cavity fordirect control of the output pulse-shape of the laser. Depending on the dispersion filter applied with the pulse-shaper we either observe a bright or dark "soliton-like" pulse train. The results demonstrate the strong potentialof an in-cavity spectral pulse-shaper as an experimental tool for controlling the dynamics of passivelymode-locked lasers. (C) 2010 Optical Society of AmericaTimes Cited in Web of Science: 0Total Times Cited: 0ISSN: 1094-4087Book DOI:

Record 17 of 100Author(s): Stiller, B.; Foaleng, S. M.; Beugnot, J. -C.; Lee, M. W.; Delque, M.; Bouwmans, G.; Kudlinski, A.;Thevenaz, L.; Maillotte, H.; Sylvestre, T.Title: Photonic crystal fiber mapping using Brillouin echoes distributed sensingSource: OPTICS EXPRESSVolume: 18Issue: 19Pages: 20136-20142Published: SEP 13 2010Abstract: In this paper we investigate the effect of microstructure irregularities and applied strain on backwardBrillouin scattering by comparing two photonic crystal fibers drawn with different parameters in order tominimize diameter and microstructure fluctuations. We fully characterize their Brillouin properties including thegain spectrum and the critical power. Using Brillouin echoes distributed sensing with a high spatial resolution of30 cm we are able to map the Brillouin frequency shift along the fiber and get an accurate estimation of themicrostructure longitudinal fluctuations. Our results reveal a clear-cut difference of longitudinal homogeneitybetween the two fibers. (C) 2010 Optical Society of AmericaTimes Cited in Web of Science: 4Total Times Cited: 4ISSN: 1094-4087Book DOI:

Record 18 of 100Author(s): Lee, Min Won; Sylvestre, Thibaut; Delque, Michael; Kudlinski, Alexandre; Mussot, Arnaud; Gleyze,J. -F.; Jolly, Alain; Maillotte, HerveTitle: Demonstration of an All-Fiber Broadband Optical Parametric Amplifier at 1 mu mSource: JOURNAL OF LIGHTWAVE TECHNOLOGYVolume: 28Issue: 15Pages: 2173-2178DOI: 10.1109/JLT.2010.2053195


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Published: AUG 1 2010Abstract: In this paper, an optical parametric amplifier and wavelength converter in an all-fiber opticalconfiguration is experimentally demonstrated for photonic applications in the 1 mu m band. This is achieved byusing a microstructured fiber which provides anomalous dispersion at 1 mu m and an LiNbO(3) electro-opticintensity modulator specially designed at this operating wavelength for generating pump pulses. A gain of greaterthan 30 dB together with highly efficient wavelength conversion is obtained at 1053 nm. The gain bandwidth andgain-power efficiency are also investigated. Experimental results agree well with the theory of parametricamplification including Raman scattering.Times Cited in Web of Science: 1Total Times Cited: 1ISSN: 0733-8724Book DOI:

Record 19 of 100Author(s): Olislager, L.; Cussey, J.; Nguyen, A. T.; Emplit, P.; Massar, S.; Merolla, J. -M.; Huy, K. PhanTitle: Frequency-bin entangled photonsSource: PHYSICAL REVIEW AVolume: 82Issue: 1Article Number: 013804DOI: 10.1103/PhysRevA.82.013804Published: JUL 6 2010Abstract: A monochromatic laser pumping a parametric down-conversion crystal generates frequency-entangledphoton pairs. We study this experimentally by addressing such frequency-entangled photons attelecommunication wavelengths (around 1550 nm) with fiber-optics components such as electro-optic phasemodulators and narrow-band frequency filters. The theory underlying our approach uses the notion offrequency-bin entanglement. Our results show that the phase modulators address coherently up to elevenfrequency bins, leading to an interference pattern which can violate by more than five standard deviations a Bellinequality adapted to our setup.Times Cited in Web of Science: 6Total Times Cited: 6ISSN: 1050-2947Book DOI:

Record 20 of 100Author(s): Clemmen, S.; Huy, K. Phan; Bogaerts, W.; Baets, R. G.; Emplit, Ph.; Massar, S.Title: Continuous wave photon pair generation in silicon-on-insulator waveguides and ring resonators (vol 17, pg16558, 2009)Source: OPTICS EXPRESSVolume: 18Issue: 13Pages: 14107-14107Published: JUN 21 2010Abstract: An error was made which is a basic calculation mistake. We have corrected this error and updated theprospects about ring cavity-based photon pair sources. (C) 2010 Optical Society of AmericaTimes Cited in Web of Science: 0Total Times Cited: 0


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ISSN: 1094-4087Book DOI:

Record 21 of 100Author(s): Safioui, Jassem; Fazio, Eugenio; Devaux, Fabrice; Chauvet, MathieuTitle: Surface-wave pyroelectric photorefractive solitonsSource: OPTICS LETTERSVolume: 35Issue: 8Pages: 1254-1256Published: APR 15 2010Abstract: Surface-wave solitons, induced by the pyroelectric effect, are formed at the interface between aphotorefractive ferroelectric medium and a linear medium. These optical solitons are trapped in both transversedimensions and are efficiently attracted to the interface. The asymmetric shape of the nonlinear index changeformed under the charge saturation regime is responsible for the surface-wave solitons' formation. Experimentaldemonstrations are performed in a lithium niobate sample with moderate temperature change. The phenomenonis successfully explained through numerical simulations. (C) 2010 Optical Society of AmericaTimes Cited in Web of Science: 1Total Times Cited: 1ISSN: 0146-9592Book DOI:

Record 22 of 100Author(s): Fazio, Eugenio; Belardini, Alessandro; Alonzo, Massimo; Centini, Marco; Chauvet, Mathieu;Devaux, Fabrice; Scalora, MichaelTitle: Observation of photorefractive simultons in lithium niobateSource: OPTICS EXPRESSVolume: 18Issue: 8Pages: 7972-7981Published: APR 12 2010Abstract: Spatial and temporal locking of fundamental and second harmonic pulses was realized by means ofphotorefractive nonlinearity and highly mismatched harmonic generation. Due to the presence of both phase-locked and unlocked second harmonic pulses, a twin simultonic state was observed. Simultonic filamentationoccurring at high pumping rates allowed us to determine a relation between the simulton's waist and its intensity.(C) 2010 Optical Society of AmericaTimes Cited in Web of Science: 0Total Times Cited: 0ISSN: 1094-4087Book DOI:

Record 23 of 100Author(s): Blanchet, Jean-Luc; Devaux, Fabrice; Furfaro, Luca; Lantz, EricTitle: Purely spatial coincidences of twin photons in parametric spontaneous down-conversionSource: PHYSICAL REVIEW AVolume: 81Issue: 4


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Article Number: 043825DOI: 10.1103/PhysRevA.81.043825Published: APR 2010Abstract: We have measured sub-shot-noise quantum correlations of spatial fluctuations in the far-field image ofthe parametric fluorescence created in a type I beta-barium-borate nonlinear crystal, either between oppositeangular sectors (nondegenerate configuration) or between opposite pixels (degenerate configuration). Imaging isperformed at a very low light level (0.2 photons per pixel) with an electron-multiplying CCD camera, resulting inpurely spatial coincidences between single photons when detecting on pixels. Experimental results overcome thestandard quantum-limit-shot-noise level without subtraction of the variance of the detection noise. We comparethese experimental results with numerical results given by the quantum Green's function method, which is provedto have strong advantages over stochastic simulations.Times Cited in Web of Science: 0Total Times Cited: 0ISSN: 1050-2947Book DOI:

Record 24 of 100Author(s): Fazio, E.; Alonzo, M.; Devaux, F.; Toncelli, A.; Argiolas, N.; Bazzan, M.; Sada, C.; Chauvet, M.Title: Luminescence-induced photorefractive spatial solitonsSource: APPLIED PHYSICS LETTERSVolume: 96Issue: 9Article Number: 091107DOI: 10.1063/1.3313950Published: MAR 1 2010Abstract: We report the observation of spatial confinement of a pump beam into a photorefractive solitonicchannel induced by luminescence [luminescence induced spatial soliton (LISS)]. Trapped beams have beenobtained in erbium doped lithium niobate crystals at concentrations as high as 0.7 mol % of erbium. By pumpingat 980 nm, erbium ions emit photons at 550 nm by two-step absorption, wavelength which can be absorbed bylithium niobate and originates the photorefractive effect. The luminescence at 550 nm generates at the same timethe solitonic channel and the background illumination reaching a steady-state soliton regime.Times Cited in Web of Science: 1Total Times Cited: 1ISSN: 0003-6951Book DOI:

Record 25 of 100Author(s): Devaux, Fabrice; Safioui, Jassem; Chauvet, Mathieu; Passier, RemyTitle: Two-photoactive-center model applied to photorefractive self-focusing in biased LiNbO(3)Source: PHYSICAL REVIEW AVolume: 81Issue: 1Article Number: 013825DOI: 10.1103/PhysRevA.81.013825Published: JAN 2010Abstract: We propose a time-dependent, three-dimensional numerical model where iron impurities and polaronsare both considered photoactive centers to explain beam self-trapping in biased lithium niobate crystal. It shows


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that the intensity-dependent behavior reported experimentally is due to the competition between the drift currentand the nonlinear photovoltaic current. For low light intensity, beam self-focusing occurs, while beam-splitting isobserved at a higher intensity level.Times Cited in Web of Science: 2Total Times Cited: 2ISSN: 1050-2947Book DOI:

Record 26 of 100Author(s): Stiller, Birgit; Delque, Michael; Lee, Minw.; Mafang, Stella Foaleng; Beugnot, Jean-Charles;Kudlinski, Alexandre; Thevenaz, Luc; Maillotte, Herve; Sylvestre, ThibautEditor(s): Kalli, K; Urbanczyk, WTitle: Effect of inhomogeneities on backward and forward Brillouin scattering in photonic crystal fibersSource: PHOTONIC CRYSTAL FIBERS IVBook Series Title: Proceedings of SPIE-The International Society for Optical EngineeringVolume: 7714Article Number: 771406DOI: 10.1117/12.854537Published: 2010Abstract: Photonic Crystal Fibers (PCF) play a crucial role for fundamental investigations such as acousto-optical interactions as well as for applications, such as distributed sensors. One limiting factor for theseexperiments is the fiber inhomogeneity owing to the drawing process. In this paper we study the effect ofstructural irregularities on both the backward and forward Brillouin scattering by comparing two PCFs drawnwith different parameters, in order to minimize diameter fluctuations. We fully characterize their Brillouinproperties including the backward Brillouin spectrum, the Brillouin threshold, a distributed measurement alongthe fibers and polarized Guided Acoustic Wave Brillouin Scattering (GAWBS). In the Brillouin spectrum weobserve a single peak as in a single-mode fiber whereas former investigations have often shown a multiple peakspectrum in PCFs with small core. The theoretical and experimental values for the Brillouin threshold are ingood agreement, which results from the single peak spectrum. By using a Brillouin echoes distributed sensingsystem (BEDS), we also investigate the Brillouin spectrum along the fiber with a high spatial resolution of 30cm. Our results reveal a clear-cut difference between the distributed measurements in the two fibers and confirmthe previous experiments. In the same way the GAWBS allows us to estimate the uniformity of the fibers. Thespectra show a main peak at about 750 MHz, in accordance with theoretical simulations of the acoustic mode andof the elasto-optical coefficient. The fiber inhomogeneity impacts on the stability and the quality factor of themeasured GAWBS spectra. We finally show that the peak frequency of the trapped acoustic mode is more relatedto the optical effective area rather than the core diameter of the PCF. Thus measuring the main GAWBS peak canbe applied for the precise measurement of the effective area of PCFs.Conference Title: Conference on Photonic Crystal Fibers IVConference Date: APR 14-16, 2010Conference Location: Brussels, BELGIUMSponsor(s): SPIE; B-PHOT; FWO; ICOTimes Cited in Web of Science: 0Total Times Cited: 0ISSN: 0277-786XISBN: 978-0-8194-8187-0Book DOI:

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Author(s): Pettazzi, Federico; Coda, Virginie; Fanjoux, Gil; Chauvet, Mathieu; Fazio, EugenioTitle: Dynamics of second-harmonic generation in a photovoltaic photorefractive quadratic mediumSource: JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICSVolume: 27Issue: 1Pages: 1-9Published: JAN 2010Abstract: We investigate second-harmonic generation (SHG) in a photorefractive photovoltaic medium such aslithium niobate. Our numerical model reveals the complex dynamics of the parametric process during the buildupof the index modification due to the photorefractive (PR) nonlinearity. We investigate a condition in which noexternal field is applied to the crystal, resulting in a defocusing nonlinearity, as well as the case in which anexternal bias is applied, producing a self-focusing effect that can enhance the conversion efficiency of theparametric process. We also find the conditions for the initial phase matching and for the backgroundillumination leading to a stable self-confined propagation of the second-harmonic generated light. The developednumerical model shows that as a general case SHG in a self-focusing PR medium results in mode beating insidethe generated waveguide, as experimentally observed. (C) 2009 Optical Society of AmericaTimes Cited in Web of Science: 2Total Times Cited: 2ISSN: 0740-3224Book DOI:

Record 28 of 100Author(s): Schroederl, Jochen; Coen, Stephane; Sylvestre, Thibant; Eggleton, Ben J.Book Group Author(s): IEEETitle: Pulse-shape selection of an ultra-high repetition rate wavelength and repetition rate tunable mode-lockedlaser: From bright to dark pulsesSource: 2010 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO) AND QUANTUMELECTRONICS AND LASER SCIENCE CONFERENCE (QELS)Published: 2010Abstract: We control the output pulse-shape of a wavelength and repetition rate tunable passively mode-lockedlaser with a wavelength selective switch (WSS) inside the cavity. We observe a periodic variation between brightand dark pulses. (C) 2009 Optical Society of AmericaConference Title: Conference on Lasers and Electro-Optics (CLEO)/Quantum Electronics and Laser ScienceConference (QELS)Conference Date: MAY 16-21, 2010Conference Location: San Jose, CATimes Cited in Web of Science: 0Total Times Cited: 0ISBN: 978-1-55752-890-2Book DOI:

Record 29 of 100Author(s): Chauvet, M.; Safioui, J.; Devaux, F.Title: Beam self-trapping by pyroelectric effectSource: JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALSVolume: 12Issue: 1


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Pages: 52-56Published: JAN 2010Abstract: Optical beam self-trapping induced by pyroelectric effect is demonstrated in a photorefractivemedium. A 10 degree temperature raise of a lithium niobate crystal is shown to be sufficient to self-trap a 15 mum diameter beam at 532nm. The phenomenon is explained by the local screening of the internal pyroelectric fieldproduced by the spontaneous polarisation change. Such an optical nonlinearity can lead to the formation of 2-Dspatial pyroelectric solitons. Experimental demonstrations are confirmed by numerical calculations.Times Cited in Web of Science: 0Total Times Cited: 0ISSN: 1454-4164Book DOI:

Record 30 of 100Author(s): Fanjoux, Gil; Sylvestre, ThibautTitle: All-optical tunable pulse frequency chirp via slow lightSource: OPTICS LETTERSVolume: 34Issue: 24Pages: 3824-3826Published: DEC 15 2009Abstract: We theoretically investigate slow light via stimulated Raman scattering, paying special attention to thepicosecond regime where chromatic dispersion and cross-phase modulation must be considered. In addition tothe control of the Raman pulse walk-off, we demonstrate that the cross-phase-modulation-induced frequencychirp can also be all-optically tuned via Raman slow light. We further demonstrate that this new implication is aconsequence of the fact that the group velocity is significantly more affected than the phase velocity in slow-lightmedia. (C) 2009 Optical Society of AmericaTimes Cited in Web of Science: 0Total Times Cited: 0ISSN: 0146-9592Book DOI:

Record 31 of 100Author(s): Safioui, Jassem; Devaux, Fabrice; Chauvet, MathieuTitle: Pyroliton: pyroelectric spatial solitonSource: OPTICS EXPRESSVolume: 17Issue: 24Pages: 22209-22216Published: NOV 23 2009Abstract: The concept of optical beam self-trapping in pyroelectric photorefractive medium is presented. Weshow that the temperature controlled spontaneous polarisation of ferroelectric crystals produces an opticalnonlinearity that can lead to formation of 2-D spatial soliton named pyroliton. Experimental demonstrationsperformed in lithium niobate crystals illustrate that efficient self-trapping occurs either for ordinary orextraordinary polarisation under moderate temperature increase. For instance, a 15 mu m diameter pyroliton canbe formed with a 10 degree temperature raise. (C) 2009 Optical Society of AmericaTimes Cited in Web of Science: 9Total Times Cited: 9


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Record 32 of 100Author(s): Clemmen, S.; Huy, K. Phan; Bogaerts, W.; Baets, R. G.; Emplit, Ph.; Massar, S.Title: Continuous wave photon pair generation in silicon-on-insulator waveguides and ring resonatorsSource: OPTICS EXPRESSVolume: 17Issue: 19Pages: 16558-16570Published: SEP 14 2009Abstract: Silicon waveguides are promising chi(3)-based photon pair sources. Demonstrations so far have beenbased on picosecond pulsed lasers. Here, we present the first investigation of photon pair generation in siliconwaveguides in a continuous regime. The source is characterized by coincidence measurements. We uncover thepresence of unexpected noise which had not been noticed in earlier experiments. Subsequently, we presentadvances towards integration of the photon pair source with other components on the chip. This is demonstratedby photon pair generation in a Sagnac loop interferometer and inside a micro-ring cavity. Comparison with thestraight waveguide shows that these are promising avenues for improving the source. In particular photon pairgeneration in the micro-ring cavity yields a source with a spectral width of approximately 150 pm resulting in aspectral brightness increased by more than 2 orders of magnitude. (C) 2009 Optical Society of AmericaTimes Cited in Web of Science: 9Total Times Cited: 9ISSN: 1094-4087Book DOI:

Record 33 of 100Author(s): Delque, M.; Dewandre, A.; Huy, K. Phan; Gorza, S. -P.; Haelterman, M.Title: Modelling the vertical grating-waveguide coupler for the description of its nonlinear symmetry-breakingdynamicsSource: OPTICS COMMUNICATIONSVolume: 282Issue: 17Pages: 3607-3611DOI: 10.1016/j.optcom.2009.05.076Published: SEP 1 2009Abstract: We propose a new scheme to observe the symmetry-breaking dynamics of two counter-propagatingbeams in a Kerr-type nonlinear waveguide coupler. Using a grating to couple light at normal incidence upon thewaveguide allows for a single-beam geometry. The ability of the grating to couple light symmetrically isdemonstrated on the basis of a linear coupled-mode approach especially adapted to vertical coupling. Thenonlinear symmetry-breaking dynamics is studied analytically. (C) 2009 Elsevier B.V. All rights reserved.Times Cited in Web of Science: 0Total Times Cited: 0ISSN: 0030-4018Book DOI:

Record 34 of 100Author(s): Sando, Daniel; Jaatinen, Esa; Devaux, Fabrice


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Title: Reversal of degradation of information masks in lithium niobateSource: APPLIED OPTICSVolume: 48Issue: 24Pages: 4676-4682Published: AUG 20 2009Abstract: We report on the reversal of degradation of information masks stored in self-defocusing lithiumniobate. After a long writing time, the image degradation appears as the splitting of refractive-index patternsstored in the medium. The reversal is achieved simply by illuminating the crystal with incoherent light from ahalogen lamp. The reversal occurs because the refractive-index changes responsible for the splitting are of asmaller magnitude and are therefore erased first during incoherent illumination. Additionally, we gain insightinto the storage, degradation, and erasure dynamics using a time-dependent numerical model of thephotorefractive effect in this medium. Since the data can be recovered from a degraded state in which the originaldata are unrecognizable, this technique could be utilized in such applications as image scrambling or encryption.(C) 2009 Optical Society of AmericaTimes Cited in Web of Science: 0Total Times Cited: 0ISSN: 0003-6935Book DOI:

Record 35 of 100Author(s): Chauvet, Mathieu; Fanjoux, Gil; Huy, Kien Phan; Nazabal, Virginie; Charpentier, Frederic; Billeton,Thierry; Boudebs, Georges; Cathelinaud, Michel; Gorza, Simon-PierreTitle: Kerr spatial solitons in chalcogenide waveguidesSource: OPTICS LETTERSVolume: 34Issue: 12Pages: 1804-1806Published: JUN 15 2009Abstract: Kerr spatial solitons are observed in slab chalcogenide waveguides at near-IR wavelengths.Waveguides are realized either by electron-beam evaporation or rf sputtering of a Ge-Sb-S compound depositedon oxidized silicon wafer. The Kerr coefficient of the thin film is evaluated to be 5 x 10(-18) m(2)/W from theexperimentally required soliton power at 1.5 mu m. Limitations due to material photosensitivity are revealed. (C)2009 Optical Society of AmericaTimes Cited in Web of Science: 3Total Times Cited: 3ISSN: 0146-9592Book DOI:

Record 36 of 100Author(s): Sylvestre, T.; Kudlinski, A.; Mussot, A.; Gleyze, J. F.; Jolly, A.; Maillotte, H.Title: Parametric amplification and wavelength conversion in the 1040-1090 nm band by use of a photoniccrystal fiberSource: APPLIED PHYSICS LETTERSVolume: 94Issue: 11Article Number: 111104


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DOI: 10.1063/1.3100192Published: MAR 16 2009Abstract: Highly efficient parametric amplification and wavelength conversion have been demonstrated in the1040-1090 nm band. A nonlinear photonic crystal fiber was used to provide the anomalous dispersion requiredfor phase matching at 1 mu m. A 40 dB maximum gain and +35 dB idler conversion efficiency have beenachieved in the subnanosecond pulsed regime and by using a spectrally filtered supercontinuum source as a smallsignal.Times Cited in Web of Science: 4Total Times Cited: 4ISSN: 0003-6951Book DOI:

Record 37 of 100Author(s): Fazio, Eugenio; Pettazzi, Federico; Centini, Marco; Chauvet, Mathieu; Belardini, Alessandro;Alonzo, Massimo; Sibilia, Concita; Bertolotti, Mario; Scalora, MichaelTitle: Complete spatial and temporal locking in phase-mismatched second-harmonic generationSource: OPTICS EXPRESSVolume: 17Issue: 5Pages: 3141-3147Published: MAR 2 2009Abstract: We experimentally demonstrate simultaneous phase and group velocity locking of fundamental andgenerated second harmonic pulses in Lithium Niobate, under conditions of material phase mismatch. In phase-mismatched, pulsed second harmonic generation in addition to a reflected signal two forward-propagating pulsesare also generated at the interface between a linear and a second order nonlinear material: the first pulse resultsfrom the solution of the homogeneous wave equation, and propagates at the group velocity expected frommaterial dispersion; the second pulse is the solution of the inhomogeneous wave equation, is phase-locked andtrapped by the pump pulse, and follows the pump trajectory. At normal incidence, the normal and phase lockedpulses simply trail each other. At oblique incidence, the consequences can be quite dramatic. The homogeneouspulse refracts as predicted by material dispersion and Snell's law, yielding at least two spatially separate secondharmonic spots at the medium's exit. We thus report the first experimental results showing that, at obliqueincidence, fundamental and phase-locked second harmonic pulses travel with the same group velocity and followthe same trajectory. This is direct evidence that, at least up to first order, the effective dispersion of the phase-locked pulse is similar to the dispersion of the pump pulse. (C) 2009 Optical Society of AmericaTimes Cited in Web of Science: 11Total Times Cited: 11ISSN: 1094-4087Book DOI:

Record 38 of 100Author(s): Devaux, Fabrice; Chauvet, MathieuTitle: Three-dimensional numerical model of the dynamics of photorefractive beam self-focusing in InP:FeSource: PHYSICAL REVIEW AVolume: 79Issue: 3Article Number: 033823DOI: 10.1103/PhysRevA.79.033823Published: MAR 2009


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Abstract: We propose a time-dependent three-dimensional numerical model which successfully explains thecomplex spatiotemporal dynamic of photorefractive self-focusing of an infrared beam in InP:Fe. Characteristicbehaviors are in good agreement with experiments previously reported. Intensity dependence and asymmetricphotoinduced index profile are explained. In addition self-trapping dynamics shows potential self-trappingresponse in the microsecond range.Times Cited in Web of Science: 3Total Times Cited: 3ISSN: 1050-2947Book DOI:

Record 39 of 100Author(s): Safioui, J.; Chauvet, M.; Devaux, E.; Coda, V.; Pettazzi, F.; Alonzo, M.; Fazio, E.Title: Polarization and configuration dependence of beam self-focusing in photorefractive LiNbO(3)Source: JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICSVolume: 26Issue: 3Pages: 487-492Published: MAR 2009Abstract: We present numerical and experimental analyses showing the formation of (2+1)D spatialphotorefractive solitons at visible wavelengths in electrically biased lithium niobate crystals for ordinary andextraordinary light polarizations. Similarly sized self-trapped beams are observed for both polarizations, despitethe polarization-dependent electro-optic coefficients, The tensorial character of the photovoltaic effect is shownto play a key role. The soliton-induced waveguides are able to properly guide telecommunication wavelengths.Finally, a higher degree of anisotropy is observed for ordinary polarized solitons for specific electro-opticconfigurations. which reveals the presence of the photorefractive field component perpendicular to the appliedfield. Experimental results are confirmed by a time-dependent numerical model. (C) 2009 Optical Society ofAmericaTimes Cited in Web of Science: 5Total Times Cited: 5ISSN: 0740-3224Book DOI:

Record 40 of 100Author(s): Fazio, E.; Chauvet, M.; Vlad, V. I.; Petris, A.; Pettazzi, F.; Coda, V.; Alonzo, M.Editor(s): Ferraro, P; Grilli, S; De Natale, PTitle: 3-D Integrated Optical Microcircuits in Lithium Niobate Written by Spatial SolitonsSource: FERROELECTRIC CRYSTALS FOR PHOTONIC APPLICATIONS: INCLUDING NANOSCALEFABRICATION AND CHARACTERIZATION TECHNIQUESBook Series Title: Springer Series in Materials ScienceVolume: 91Pages: 101-134Published: 2009Times Cited in Web of Science: 3Total Times Cited: 3ISSN: 0933-033XISBN: 978-3-540-77965-0Book DOI: 10.1007/978-3-540-77965-0


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Record 41 of 100Author(s): Sylvestre, T.; Kudlinski, A.; Mussot, A.; Gleyze, J. F.; Jolly, A.; Maillotte, H.Book Group Author(s): IEEETitle: Demonstration of Parametric Amplification at 1 mu m by use of a Microstructured Optical FiberSource: 2009 IEEE/LEOS WINTER TOPICALS MEETING SERIES (WTM 2009)Pages: 187-188Published: 2009Abstract: Highly efficient parametric amplification and wavelength conversion have been demonstrated in the1040-1090nm band by use of a microstructured optical fiber and picosecond pump and signal pulses.Conference Title: IEEE/LEOS Winter Topicals MeetingConference Date: JAN 12-14, 2009Conference Location: Innsbruck, AUSTRIASponsor(s): IEEE; LEOSTimes Cited in Web of Science: 0Total Times Cited: 0ISBN: 978-1-4244-2610-2Book DOI:

Record 42 of 100Author(s): Blanchet, Jean-Luc; Devaux, Fabrice; Furfaro, Luca; Lantz, EricTitle: Measurement of Sub-Shot-Noise Correlations of Spatial Fluctuations in the Photon-Counting RegimeSource: PHYSICAL REVIEW LETTERSVolume: 101Issue: 23Article Number: 233604DOI: 10.1103/PhysRevLett.101.233604Published: DEC 5 2008Abstract: We have measured sub-shot-noise quantum correlations of spatial fluctuations in the far-field image ofthe parametric fluorescence created in a type I beta-barium-borate nonlinear crystal. Imaging is performed at verylow light level (0.15 photons per pixel) with an electron multiplying charge coupled device camera. Experimentalresults overcome the standard quantum limit shot-noise level without subtraction of the variance of the detectionnoise.Times Cited in Web of Science: 8Total Times Cited: 8ISSN: 0031-9007Book DOI:

Record 43 of 100Author(s): Fanjoux, Gil; Sylvestre, ThibautTitle: Cancellation of Raman pulse walk-off by slow lightSource: OPTICS LETTERSVolume: 33Issue: 21Pages: 2506-2508DOI: 10.1364/OL.33.002506Published: NOV 1 2008


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Abstract: We theoretically demonstrate in a nonlinear optical fiber system with a narrowband Raman gain thatpulse walk-off between the pump and the Raman Stokes waves can be fully compensated for by Raman slowlight, leading to group-velocity matching between the interacting waves, greater useful interaction length, andthereby enhanced Raman amplification efficiency. Limitations due to Kerr effect are further discussed. (C) 2008Optical Society of AmericaTimes Cited in Web of Science: 1Total Times Cited: 1ISSN: 0146-9592Book DOI:

Record 44 of 100Author(s): Sylvestre, Thibaut; Mussot, Arnaud; Vedadi, Armand; Provino, Laurent; Lantz, Eric; Maillotte,HerveTitle: System Performances of Fiber Optical Parametric AmplifiersSource: FIBER AND INTEGRATED OPTICSVolume: 27Issue: 6Pages: 516-531DOI: 10.1080/01468030802269787Published: NOV-DEC 2008Abstract: The research field of fiber optical parametric amplifiers has steadily expanded over the last twodecades as a host of all-optical signal processing techniques have been demonstrated in nonlinear optical fiberssuch as wavelength conversion, optical regeneration, optical switching, limiting, buffering, and sampling. Thisarticle reviews the system performances of theses parametric devices such as gain bandwidth, focuses on themain limitations and demonstrates efficient techniques for suppressing them.Times Cited in Web of Science: 0Total Times Cited: 0ISSN: 0146-8030Book DOI:

Record 45 of 100Author(s): Vedadi, Armand; Marhic, Michel E.; Lantz, Eric; Maillotte, Herve; Sylvestre, ThibautTitle: Investigation of gain ripple in two-pump fiber optical parametric amplifiersSource: OPTICS LETTERSVolume: 33Issue: 19Pages: 2203-2205DOI: 10.1364/OL.33.002203Published: OCT 1 2008Abstract: By using the four-sideband theory, we analyze the gain spectrum in wideband two-pump fiber opticalparametric amplifiers and predict gain ripples over the flat gain region. We derive an approximation of theirpseudo-periods and discuss methods for reducing their amplitudes. (C) 2008 Optical Society of AmericaTimes Cited in Web of Science: 0Total Times Cited: 0ISSN: 0146-9592Book DOI:


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Record 46 of 100Author(s): Nguyen, A. T.; Frison, J.; Huy, K. Phan; Massar, S.Title: Experimental quantum tossing of a single coinSource: NEW JOURNAL OF PHYSICSVolume: 10Article Number: 083037DOI: 10.1088/1367-2630/10/8/083037Published: AUG 28 2008Abstract: The cryptographic protocol of coin tossing consists of two parties, Alice and Bob, who do not trusteach other, but want to generate a random bit. If the parties use a classical communication channel and haveunlimited computational resources, one of them can always cheat perfectly. If the parties use a quantumcommunication channel, there exist protocols such that neither party can cheat perfectly, although they may beable to significantly bias the coin. Here, we analyze in detail how the performance of a quantum coin tossingexperiment should be compared to classical protocols, taking into account the inevitable experimentalimperfections. We then report an all-optical fiber experiment in which a single coin is tossed whose randomnessis higher than achievable by any classical protocol and present some easily realizable cheating strategies by Aliceand Bob.Times Cited in Web of Science: 5Total Times Cited: 5ISSN: 1367-2630Book DOI:

Record 47 of 100Author(s): Boucon, Anne; Fotiadi, Andrei; Megret, Patrice; Maillotte, Herve; Sylvestre, ThibautTitle: Low-threshold all-fiber 1000 nm supercontinuum source based on highly non-linear fiberSource: OPTICS COMMUNICATIONSVolume: 281Issue: 15-16Pages: 4095-4098DOI: 10.1016/j.optcom.2008.04.024Published: AUG 2008Abstract: We present an highly efficient all-fiber compact supercontinuum source that exhibits a nearly flatspectrum from 1.1 mu m to 2.1 mu m. This broadband infrared optical source is made-up of a highly non-linearfiber pumped by a 1.55 mu m self-Q-switched Er-Brillouin nanosecond pulsed fiber laser, which in turn ispumped by a low-power 1480 nm laser diode. In this work we highlight the great potential of highly non-linearfiber for supercontinuum generation with respect to conventional dispersion-shifted fiber by demonstrating asignificant 10 dB power enhancement in the short wavelength side of the supercontinuum. (c) 2008 Elsevier B.V.All rights reserved.Times Cited in Web of Science: 0Total Times Cited: 1ISSN: 0030-4018Book DOI:

Record 48 of 100Author(s): Schroeder, Jochen; Alasia, Dario; Sylvestre, Thibaut; Coen, StephaneTitle: Dynamics of an ultrahigh-repetition-rate passively mode-locked Raman fiber laserSource: JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS


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Volume: 25Issue: 7Pages: 1178-1186DOI: 10.1364/JOSAB.25.001178Published: JUL 2008Abstract: We present an extended study of an ultrahigh-repetition-rate Raman fiber laser passively mode-lockedthrough dissipative four-wave mixing. We demonstrate mode locking at 100 and 160 GHz repetition rates,corresponding to harmonic frequencies more than 400,000 times the cavity resonance frequency. By varying theoutput coupling ratio we are able to change the threshold and slope efficiency of the laser. The maximum averageoutput power achieved was 926 mW, a further twofold increase of the output power reported previously for thistype of laser. Further numerical analysis reveals that the main factor limiting the pulse quality of our setup issupermode noise. Subsequently, we experimentally investigate the use of all-fiber subcavity Fabry-Perot filters toreduce the noise and demonstrate a significant improvement in the laser operation. (c) 2008 Optical Society ofAmerica.Times Cited in Web of Science: 8Total Times Cited: 8ISSN: 0740-3224Book DOI:

Record 49 of 100Author(s): Lantz, Eric; Blanchet, Jean-Luc; Furfaro, Luca; Devaux, FabriceTitle: Multi-imaging and Bayesian estimation for photon counting with EMCCDsSource: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETYVolume: 386Issue: 4Pages: 2262-2270DOI: 10.1111/j.1365-2966.2008.13200.xPublished: JUN 1 2008Abstract: A multi-imaging strategy is proposed and experimentally tested to improve the accuracy of photoncounting with an electron multiplying CCD (EMCCD), by taking into account the random nature of its on-chipgain and the possibility of multiple photodetection events on one pixel. This strategy is based on Bayesianestimation on each image, with a priori information given by the sum of the images. The method works even forimages with large dynamic range, with more improvement in the low light level areas. In these areas, two thirdsof the variance added by the EMCCD in a conventional imaging mode are removed, making the physical photonnoise predominant in the detected image.Times Cited in Web of Science: 7Total Times Cited: 8ISSN: 0035-8711Book DOI:

Record 50 of 100Author(s): Devaux, Fabrice; Coda, Virginie; Chauvet, Mathieu; Passier, RemyTitle: New time-dependent photorefractive three-dimensional model: application to self-trapped beam with largebendingSource: JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICSVolume: 25Issue: 6


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Pages: 1081-1086DOI: 10.1364/JOSAB.25.001081Published: JUN 2008Abstract: We propose a powerful method to numerically solve the propagation of light in a photorefractivemedium in the presence of both applied field and photogalvanic nonlinearity. This time-dependent full three-dimensional model is successfully applied to explain large self-bending of a solitonlike beam observed in biasedundoped lithium niobate crystals. It reveals that charge saturation is at the origin of beam bending. The numericalresults give deep insight of the formation dynamics in agreement with experiments and depict the trajectory ofthe induced waveguide inside the crystal. (C) 2008 Optical Society of America.Times Cited in Web of Science: 10Total Times Cited: 10ISSN: 0740-3224Book DOI:

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Record 51 of 100Author(s): Passier, Remy; Devaux, Fabrice; Chauvet, MathieuTitle: Impact of tensorial nature of the electro-optic effect on vortex beam propagation in photorefractive mediaSource: OPTICS EXPRESSVolume: 16Issue: 10Pages: 7134-7141DOI: 10.1364/OE.16.007134Published: MAY 12 2008Abstract: Influence of the anisotropic tensorial electro-optic effect of LiNbO(3): Fe photorefractive defocusingmedium on propagation of a vortex beam is numerically and experimentally investigated. Characteristicbehaviors are depicted by varying light polarization, sign of vortex angular momentum and propagationdirections. (C) 2008 Optical Society of America.Times Cited in Web of Science: 4Total Times Cited: 4ISSN: 1094-4087Book DOI:

Record 52 of 100Author(s): Boucon, A.; Alasia, D.; Beugnot, J. C.; Melin, G.; Lempereur, S.; Fleureau, A.; Maillotte, H.;Dudley, J. M.; Sylvestre, T.Title: Supercontinuum generation from 1.35 to 1.7 mu m by nanosecond pumping near the secondzero-dispersion wavelength of a microstructured fiberSource: IEEE PHOTONICS TECHNOLOGY LETTERSVolume: 20Issue: 9-12Pages: 842-844DOI: 10.1109/LPT.2008.921824Published: MAY-JUN 2008Abstract: We experimentally study a new regime for supercontinuum (SC) generation in the nanosecond pulsedregime using a nucrostructured optical fiber with two zero-dispersion wavelengths (ZDWs). Pumping at 1535 nmaround the second ZDW yields a nearly flat SC over 1350-1700 nm. The interplay between the effects ofmodulation instability and stimulated Raman scattering are described through simple phase-matching relations.Times Cited in Web of Science: 7Total Times Cited: 9ISSN: 1041-1135Book DOI:

Record 53 of 100Author(s): Lantz, Eric; Devaux, FabriceTitle: Parametric amplification of images: From time gating to noiseless amplificationSource: IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS


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Volume: 14Issue: 3Pages: 635-647DOI: 10.1109/JSTQE.2008.918650Published: MAY-JUN 2008Abstract: Image parametric amplification and its applications are reviewed in this paper. Phase matchingconditions allow the resolution to be determined and spatial frequency filtering to be performed. The phaseconjugate idler image can be used to cancel aberrations. Then, time gating properties are applied to ultrafastimaging, imaging through diffusing media, and lifetime fluorescence imaging. Degenerate schemes permitpolychromatic amplification as well as phase-sensitive amplification, which is proved to be noiseless withrespect to spatial fluctuations at the quantum level. Finally, it is shown that the spatial fluctuations of the signaland the idler are subshot noise correlated.Times Cited in Web of Science: 5Total Times Cited: 5ISSN: 1077-260XBook DOI:

Record 54 of 100Author(s): Fanjoux, Gil; Michaud, Jeremy; Delque, Michael; Furfaro, Luca; Maillotte, Herve; Sylvestre,ThibautTitle: Spatio-temporal dynamics of multicolor spatial Kerr solitonsSource: OPTICAL AND QUANTUM ELECTRONICSVolume: 40Issue: 2-4Pages: 271-279DOI: 10.1007/s11082-007-9171-8Published: MAR 2008Abstract: We present numerical and experimental results showing the rich and complex spatio-temporaldynamics of multicolor spatial vector soliton generated by stimulated Raman scattering in a Kerr planarwaveguide. By taking into account their temporal dimension, we found the precise domain of existence ofmulticolor soliton whose components are mutually guided and spatio-temporally superimposed. In addition, weobserve the Raman Stokes component in the trailing edge of the pump pulse and show that it is associated withthe slow-light process induced by the sharp resonance of the Raman gain medium.Conference Title: Workshop on Physics and Applications of Semiconductor Lasers/Instabilities, Patterns andSpatial Solitons (PHASE 2007/IPSSO 2007)Conference Date: MAR 28-30, 2007Conference Location: Supelec, Metz, FRANCEConference Host: SupelecTimes Cited in Web of Science: 0Total Times Cited: 0ISSN: 0306-8919Book DOI:

Record 55 of 100Author(s): Delque, Michael; Fanjoux, Gil; Sylvestre, ThibautTitle: Collision between scalar and vector spatial solitons in Kerr mediaSource: OPTICAL AND QUANTUM ELECTRONICS


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Volume: 40Issue: 2-4Pages: 281-291DOI: 10.1007/s11082-008-9196-7Published: MAR 2008Abstract: Experimental observation and numerical results concerning collisions between scalar and vectorspatial solitons in a Kerr planar waveguide are presented. It is shown that this configuration allows for the fullcontrol of spatial and polarization dynamics of the interacting vector solitons. On the one hand, the ability toachieve polarization control of a single-hump vector soliton is demonstrated. On the other hand, the effect ofcollision on the spatial symmetry-breaking dynamics of multimode vector solitons is investigated.Conference Title: Workshop on Physics and Applications of Semiconductor Lasers/Instabilities, Patterns andSpatial Solitons (PHASE 2007/IPSSO 2007)Conference Date: MAR 28-30, 2007Conference Location: Supelec, Metz, FRANCEConference Host: SupelecTimes Cited in Web of Science: 0Total Times Cited: 0ISSN: 0306-8919Book DOI:

Record 56 of 100Author(s): Vedadi, Armand A.; Grossard, Nicolas; Hauden, Jerome; Lantz, Eric; Maillotte, Herve; Sylvestre,ThibautTitle: Demonstration of an integrated LiNbO3 synchronized double phase modulator and its application todual-pump fiber optical parametric amplifiers and wavelength convertersSource: JOURNAL OF LIGHTWAVE TECHNOLOGYVolume: 26Issue: 5-8Pages: 777-781DOI: 10.1109/JLT.2007.916497Published: MAR-APR 2008Abstract: We report the fabrication of an integrated LiNbO3 Y-junction synchronized double phase modulatorfully packaged for RF-application up to 40 GHz. This optical modulator allows for delivering simultaneouslycounter-phase high-speed modulation and coupling for two input channels. It was designed for application tofiber-optical parametric amplifier and wavelength converters for suppressing idler spectral broadening and signalgain distortion caused by phase modulation itself. With this component, Idler spectral broadening suppression isexperimentally demonstrated over all the parametric gain band of a two-pump parametric amplifier operating inthe 1.55-mu m region. In addition, we present a useful technique for straightforward and full coupling of thepumps and the signal.Times Cited in Web of Science: 1Total Times Cited: 1ISSN: 0733-8724Book DOI:

Record 57 of 100Author(s): Lantz, EricTitle: Medical imaging - Retracing random paths


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Source: NATURE PHOTONICSVolume: 2Issue: 2Pages: 71-72DOI: 10.1038/nphoton.2007.289Published: FEB 2008Abstract: Diffuse scattering can prevent high-resolution imaging in thick biological media. Researchers havenow shown that such scattering can be completely cancelled by optical phase conjugation, opening the path to anew generation of medical imaging techniques.Times Cited in Web of Science: 0Total Times Cited: 0ISSN: 1749-4885Book DOI:

Record 58 of 100Author(s): Fanjoux, Gil; Michaud, Jeremy; Maillotte, Herve; Sylvestre, ThibautTitle: Slow-light spatial solitonsSource: PHYSICAL REVIEW LETTERSVolume: 100Issue: 1Article Number: 013908DOI: 10.1103/PhysRevLett.100.013908Published: JAN 11 2008Abstract: We numerically and experimentally report the observation of slow-light spatial solitons in a Kerrmedium owing to light amplification by stimulated Raman scattering. This was achieved in a CS(2) nonlinearplanar waveguide that possesses both a strong self-focusing nonlinearity to generate the spatial Raman solitonand a Raman susceptibility sharp enough to induce the slow-light process simultaneously. We show that theRaman Stokes component is optically delayed by more than 120 ps for a 140 ps Raman pulse duration and only 3cm of propagation length, while propagating as a spatial soliton beam.Times Cited in Web of Science: 7Total Times Cited: 7ISSN: 0031-9007Book DOI:

Record 59 of 100Author(s): Schroeder, Jochen; Coen, Stephane; Sylvestre, Thibaut; Alasia, DarioBook Group Author(s): IEEETitle: Characterization of a passively mode-locked Raman fiber laserSource: 2008 CONFERENCE ON LASERS AND ELECTRO-OPTICS & QUANTUM ELECTRONICS ANDLASER SCIENCE CONFERENCE, VOLS 1-9Pages: 1549-1550Published: 2008Abstract: We investigate the noise characteristics of an ultra-high repetition rate Raman fiber laser mode-lockedby dissipative four-wave mixing and demonstrate a significant reduction of the number of supermodes byincorporating a subcavity into the laser. (C) 2008 Optical Society of AmericaConference Title: Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science ConferenceConference Date: MAY 04-09, 2008


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Conference Location: San Jose, CATimes Cited in Web of Science: 0Total Times Cited: 0ISBN: 978-1-55752-859-9Book DOI:

Record 60 of 100Author(s): Boucon, A.; Alasia, D.; Beugnot, J. C.; Maillotte, H.; Dudley, J. M.; Sylvestre, T.Book Group Author(s): IEEETitle: Supercontinuum generation from 1350 to 1700 nm by nanosecond pumping near the second zerodispersion wavelength of a photonic crystal fiberSource: 2008 IEEE/LEOS WINTER TOPICAL MEETING SERIESPages: 144-145DOI: 10.1109/LEOSWT.2008.4444442Published: 2008Abstract: We experimentally study supercontinuum generation in the nanosecond regime using amicrostructured fiber with two zero dispersion wavelengths. Pumping at 1535 nm around E the secondzero-dispersion wavelength yields spectral broadening over 1350-1700 nm.Conference Title: IEEE/LEOS Winter Topical MeetingConference Date: JAN 14-16, 2008Conference Location: Sorrento, ITALYSponsor(s): IEEETimes Cited in Web of Science: 0Total Times Cited: 0ISBN: 978-1-4244-1594-6Book DOI:

Record 61 of 100Author(s): Mussot, A.; Kudlinski, A.; Beugnot, J-C; Sylvestre, T.; Gonzalez-Herraez, M.; Bouwmans, G.Book Group Author(s): IEEETitle: Extended blue side of flat supercontinuum generation in PCFs with a CWYb fiber laserSource: 2008 IEEE/LEOS WINTER TOPICAL MEETING SERIESPages: 178-179DOI: 10.1109/LEOSWT.2008.4444459Published: 2008Abstract: We report the generation of a broadband supercontinuum with a CW Yb fiber laser and a PCE Thespectrum extends toward short wavelengths through efficient dispersive wave generation.Conference Title: IEEE/LEOS Winter Topical MeetingConference Date: JAN 14-16, 2008Conference Location: Sorrento, ITALYSponsor(s): IEEETimes Cited in Web of Science: 0Total Times Cited: 0ISBN: 978-1-4244-1594-6Book DOI:


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Record 62 of 100Author(s): Sylvestre, Thibaut; Mussot, Arnaud; Lantz, Eric; Maillotte, HerveBook Group Author(s): IEEETitle: Impact of pump quality on the performances of fibre optical parametric amplifiersSource: 2008 IEEE/LEOS WINTER TOPICAL MEETING SERIESPages: 49-50DOI: 10.1109/LEOSWT.2008.4444393Published: 2008Abstract: The principle of operation of fibre optical parametric amplifiers is revisited with a special attention tothe pump wave characteristics ranging from the monochromatic coherent case to the incoherent one.Conference Title: IEEE/LEOS Winter Topical MeetingConference Date: JAN 14-16, 2008Conference Location: Sorrento, ITALYSponsor(s): IEEETimes Cited in Web of Science: 0Total Times Cited: 0ISBN: 978-1-4244-1594-6Book DOI:

Record 63 of 100Author(s): Vedadi, A.; Lantz, E.; Maillotte, H.; Sylvestre, T.Book Group Author(s): IEEETitle: Gain oscillations in two-pump fiber optical parametric amplifiersSource: 2008 IEEE/LEOS WINTER TOPICAL MEETING SERIESPages: 65-66DOI: 10.1109/LEOSWT.2008.4444401Published: 2008Abstract: Using the four sidebands theory, we analyze a recent experimental demonstration of a broadband andflat two-pump fiber optical parametric amplifier and predict gain oscillations near the pump wavelength due tointerference with modulation instability and Bragg scattering.Conference Title: IEEE/LEOS Winter Topical MeetingConference Date: JAN 14-16, 2008Conference Location: Sorrento, ITALYSponsor(s): IEEETimes Cited in Web of Science: 0Total Times Cited: 0ISBN: 978-1-4244-1594-6Book DOI:

Record 64 of 100Author(s): Delque, M.; Dewandre, A.; Huy, K. Phan; Gorza, S. -P.; Haelterman, M.Book Group Author(s): IEEETitle: Symmetry-breaking bifurcation in a vertical grating-waveguide couplerSource: 2008 CONFERENCE ON LASERS AND ELECTRO-OPTICS & QUANTUM ELECTRONICS ANDLASER SCIENCE CONFERENCE, VOLS 1-9Pages: 2744-2745


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Published: 2008Abstract: We propose a new scheme to observe the symmetry breaking dynamics of two counter-propagatingbeams in a Kerr-type nonlinear waveguide. Using a grating to couple light vertically allows for a single-beamgeometry. (C) 2008 Optical Society of AmericaConference Title: Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science ConferenceConference Date: MAY 04-09, 2008Conference Location: San Jose, CATimes Cited in Web of Science: 0Total Times Cited: 0ISBN: 978-1-55752-859-9Book DOI:

Record 65 of 100Author(s): Pettazzi, Federico; Alonzo, Massimo; Centini, Marco; Petris, Adrian; Vlad, Valentin I.; Chauvet,Mathieu; Fazio, EugenioTitle: Self-trapping of low-energy infrared femtosecond beams in lithium niobateSource: PHYSICAL REVIEW AVolume: 76Issue: 6Article Number: 063818DOI: 10.1103/PhysRevA.76.063818Published: DEC 2007Abstract: In this paper we report self-trapping of subnanojoule femtosecond near-infrared beams inphotonic-grade undoped bulk lithium niobate under application of an external dc electric field. We show that thephenomenon occurs thanks to the photorefractive effect induced by a weak second-harmonic componentgenerated under large velocity mismatch. It offers a way to extend lithium niobate's photorefractive response tothe near-infrared spectrum for peak intensity lower than 1 GW/cm(2), which is three orders of magnitude lowerthan reported in the literature.Times Cited in Web of Science: 4Total Times Cited: 4ISSN: 1050-2947Book DOI:

Record 66 of 100Author(s): Beugnot, J. -C.; Sylvestre, T.; Alasia, D.; Maillotte, H.; Laude, V.; Monteville, A.; Provino, L.;Traynor, N.; Mafang, S. Foaleng; Thevenaz, L.Title: Complete experimental characterization of stimulated Brillouin scattering in photonic crystal fiberSource: OPTICS EXPRESSVolume: 15Issue: 23Pages: 15517-15522DOI: 10.1364/OE.15.015517Published: NOV 12 2007Abstract: We provide a complete experimental characterization of stimulated Brillouin scattering in a 160 mlong solid-core photonic crystal fiber, including threshold and spectrum measurements as well as position-resolved mapping of the Brillouin frequency shift. In particular, a three-fold increase of the Brillouin thresholdpower is observed, in excellent agreement with the spectrally-broadened Brillouin gain spectrum. Distributed


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measurements additionally reveal that the rise of the Brillouin threshold results from the broadband nature of thegain spectrum all along the fiber and is strongly influenced by strain. Our experiments confirm that these uniquefibers can be exploited for the passive control or the suppression of Brillouin scattering. (c) 2007 Optical Societyof America.Times Cited in Web of Science: 15Total Times Cited: 15ISSN: 1094-4087Book DOI:

Record 67 of 100Author(s): Mussot, Arnaud; Beaugeois, Maxime; Bouazaoui, Mohamed; Sylvestre, ThibautTitle: Tailoring CW supercontinuum generation in microstructured fibers with two-zero dispersion wavelengthsSource: OPTICS EXPRESSVolume: 15Issue: 18Pages: 11553-11563DOI: 10.1364/OE.15.011553Published: SEP 3 2007Abstract: We theoretically study broadband supercontinuum generation in photonic crystal fibers exhibiting twozero dispersion wavelengths and under continuous-wave pumping. We show that when the pump wavelength islocated in between the zero-dispersion wavelengths, a wide and uniform spectral broadening is achieved throughmodulation instability, generation of both blue-shifted and red-shifted dispersive waves and subsequently throughsoliton self-frequency shift. This supercontinuum is therefore bounded by these two dispersive waves whichallow the control of its bandwidth by a suitable tuning of the fiber dispersion. As a relevant example, we predictthat broadband (1050-1600 nm) continuous-wave light can be generated in short lengths of microstructuredfibers pumped by use of a 10-W Ytterbium fiber laser. (c) 2007 Optical Society of America.Times Cited in Web of Science: 31Total Times Cited: 33ISSN: 1094-4087Book DOI:

Record 68 of 100Author(s): Mussot, A.; Lantz, E.; Durecu-Legrand, A.; Simonneau, C.; Bayart, D.; Maillotte, H.; Sylvestre, T.Title: Simple methods for crosstalk reduction in fiber optical parametric amplifiersSource: OPTICS COMMUNICATIONSVolume: 275Issue: 2Pages: 448-452DOI: 10.1016/j.optcom.2007.03.048Published: JUL 15 2007Abstract: We propose and numerically demonstrate two simple methods for reduction of the crosstalk caused byfour-wave mixing between the pump and the wavelength-division multiplexed channels in single-pump fiberoptical parametric amplifier. The first one is based on a proper tuning of the WDM system from the pumpwavelength and the second one uses the Stokes side rather than the anti-Stokes side in the gain band. (c) 2007Elsevier B.V. All rights reserved.Times Cited in Web of Science: 1Total Times Cited: 1


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Record 69 of 100Author(s): Fressengeas, N.; Khelfaoui, N.; Dan, C.; Wolfersberger, D.; Montemezzani, G.; Leblond, H.;Chauvet, M.Title: Roles of resonance and dark irradiance for infrared photorefractive self-focusing and solitons in bipolarInP : FeSource: PHYSICAL REVIEW AVolume: 75Issue: 6Article Number: 063834DOI: 10.1103/PhysRevA.75.063834Published: JUN 2007Abstract: This paper shows experimental evidence of photorefractive steady state self-focusing in InP:Fe for awide range of intensities, at both 1.06 and 1.55 mu m. To explain those results, it is shown that despite the bipolarnature of InP:Fe where one photocarrier and one thermal carrier are to be considered, the long standing onephotocarrier model for photorefractive solitons can be usefully applied. The relationship between the darkirradiance stemming out of this model and the known resonance intensity is then discussed.Times Cited in Web of Science: 6Total Times Cited: 6ISSN: 1050-2947Book DOI:

Record 70 of 100Author(s): Brustlein, Sophie; Lantz, Eric; Devaux, FabriceTitle: Absolute radiance imaging using parametric image amplificationSource: OPTICS LETTERSVolume: 32Issue: 10Pages: 1278-1280DOI: 10.1364/OL.32.001278Published: MAY 15 2007Abstract: We show that parametric image amplification can be used to achieve a 2D radiance map directlyexpressed in photons per spatiotemporal mode. Radiance images of incoherent signals with less than one photonper mode (typically 10(-2)) are resolved. (C) 2007 Optical Society of AmericaTimes Cited in Web of Science: 1Total Times Cited: 1ISSN: 0146-9592Book DOI:

Record 71 of 100Author(s): Huy, Kien Phan; Nguyen, Anh Tuan; Brainis, Edouard; Haelterman, Marc; Emplit, Philippe; Corbari,Costantino; Canagasabey, Albert; Ibsen, Morten; Kazansky, Peter G.; Deparis, Olivier; Fotiadi, Andrei A.;Megret, Patrice; Massar, SergeTitle: Photon pair source based on parametric fluorescence in periodically poled twin-hole silica fiberSource: OPTICS EXPRESS


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Volume: 15Issue: 8Pages: 4419-4426Published: APR 16 2007Abstract: We present observations of quasi-phase matched parametric fluorescence in a periodically poledtwin-hole silica fiber. The phase matching condition in the fiber enables the generation of a degenerate signalfield in the fiber-optic communication band centered on 1556 nm. We performed coincidence measurements anda Hong-Ou-Mandel experiment to validate that the signal arises from photon pairs. A coincidence peak with asignal to noise ratio (SNR) of 4 using 43 mW of pump power and a Hong-Ou-Mandel dip showing 40% netvisibility were measured. Moreover, the experiments were performed with standard single mode fibers spliced atboth ends of the poled section, which makes this source easy to integrate in fiber-optic quantum communicationapplications. (c) 2007 Optical Society of America.Times Cited in Web of Science: 5Total Times Cited: 5ISSN: 1094-4087Book DOI:

Record 72 of 100Author(s): Devaux, F.; Passier, R.Title: Phase sensitive parametric amplification of optical vortex beamsSource: EUROPEAN PHYSICAL JOURNAL DVolume: 42Issue: 1Pages: 133-137DOI: 10.1140/epjd/e2007-00014-0Published: APR 2007Abstract: Optical vortex beams with different topological charges are amplified in a travelling wave phasesensitive parametric interaction. Amplified beams observed either in the near field or in the far field domainsexhibit patterns that depend on the relative phase between the pump and the vortex beams Experimental resultsare compatible with the conservation of orbital angular momentum of the input beam whatever phase matchingconditions.Times Cited in Web of Science: 1Total Times Cited: 1ISSN: 1434-6060Book DOI:

Record 73 of 100Author(s): Pettazzi, Federico; Coda, Virginie; Chauvet, Mathieu; Fazio, EugenioTitle: Frequency-doubling in self-induced waveguides in lithium niobateSource: OPTICS COMMUNICATIONSVolume: 272Issue: 1Pages: 238-241DOI: 10.1016/j.optcom.2006.11.006Published: APR 1 2007


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Abstract: Efficient frequency-doubling is experimentally demonstrated in presence of beam self-trapping incongruent lithium niobate crystal. The self-trapping is induced by the generated second harmonic beam viaphotorefractive effect under an external applied field. The local space charge field distribution, formed by thesecond harmonic beam, is shown to efficiently trap both wavelengths. The dynamics of self-focusing is studiedalong with the power evolution of the second harmonic beam. Fast tuning of phase matching conditions in thewritten waveguide is realized by an externally applied voltage also used for the photorefractive confinement. (c)2006 Elsevier B.V. All rights reserved.Times Cited in Web of Science: 8Total Times Cited: 8ISSN: 0030-4018Book DOI:

Record 74 of 100Author(s): Devaux, Fabrice; Blanchet, Jean Luc; Lantz, EricTitle: Effective signal-to-noise ratio improvement by parametric image amplificationSource: OPTICS LETTERSVolume: 32Issue: 2Pages: 175-177DOI: 10.1364/OL.32.000175Published: JAN 15 2007Abstract: We show experimentally that parametric optical preamplification greatly improves the signal-to-noiseratio of an image if the detector has a poor quantum efficiency and/or a great level of readout noise. Results arefully consistent with the theory of quantum-noise-limited amplification. (c) 2006 Optical Society of America.Times Cited in Web of Science: 2Total Times Cited: 2ISSN: 0146-9592Book DOI:

Record 75 of 100Author(s): Delque, Michael; Fanjoux, Gil; Sylvestre, ThibautTitle: Polarization dynamics of the fundamental vector soliton of isotropic Kerr mediaSource: PHYSICAL REVIEW EVolume: 75Issue: 1Article Number: 016611DOI: 10.1103/PhysRevE.75.016611Part: Part 2Published: JAN 2007Abstract: We characterize fully the polarization dynamics of the fundamental vector soliton of isotropic Kerrmaterials by measuring the Stokes parameters of an elliptically polarized self-trapped optical beam propagatingin a slab planar waveguide. Our experiment clearly shows that this two-component spatial vector soliton exhibitsboth the so-called ellipse rotation and curved-shape ellipticity that are due to the self-induced nonlinearbirefringence between the two components of the vector soliton. The polarization of the vector soliton isaccurately determined both in the transverse and longitudinal directions and comparisons with numericalsimulations based on two coupled nonlinear Schrodinger equations provide an excellent quantitative agreement.Spatiotemporal numerical simulations that take into account the finite pulse duration of the experimental inputoptical beam must, however, be used to match rigorously the measured state of polarization of the vector soliton.


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Times Cited in Web of Science: 7Total Times Cited: 7ISSN: 1539-3755Book DOI:

Record 76 of 100Author(s): Pettazzi, Federico; Coda, V.; Chauvet, Mathieu; Fazio, EugenioEditor(s): Vlad, VITitle: Second harmonic generation in self-induced waveguides in lithium niobate - art. no. 678515Source: ROMOPTO 2006: Eighth Conference on OpticsBook Series Title: PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATIONENGINEERS (SPIE)Volume: 6785Pages: 78515-78515Article Number: 678515DOI: 10.1117/12.757909Published: 2007Abstract: We present the investigation of second harmonic generation in congruent undoped lithium niobatecrystal in presence of strong photorefractive and photovoltaic effect. We show that phase matching condition canbe efficiently varied employing both the temperature and the electric field tuning. We also perform experimentson second harmonic generation with focused light, showing that the photorefractive effect is responsible for astrong distortion of the beam as well as a local modification of the phase matching condition. Finally, wedemonstrate that an external bias can be used in order to switch from optical damage and distortion toself-confinement and guidance, reaching higher conversion efficiency through confinement and good overlapbetween interacting waves.Conference Title: 8th Conference on OpticsConference Date: SEP 04-07, 2006Conference Location: Sibiu, ROMANIASponsor(s): Romanian Phys Soc, Div Opt & Quantum Elect; SPIE Romanian ChapterTimes Cited in Web of Science: 0Total Times Cited: 0ISSN: 0277-786XISBN: 978-0-8194-6949-6Book DOI:

Record 77 of 100Author(s): Dan, Cristian; Khelfaoui, Naima; Wolfersberger, Delphine; Fressengeas, Nicolas; Leblond, Herv;Chauvet, MathieuEditor(s): Vlad, VITitle: Fast photorefractive self-focusing in semiconductors - art. no. 67851CSource: ROMOPTO 2006: Eighth Conference on OpticsBook Series Title: PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATIONENGINEERS (SPIE)Volume: 6785Pages: C7851-C7851Article Number: 67851CDOI: 10.1117/12.757925


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Published: 2007Abstract: Photorefractive (PR) spatial soliton propagation hints that all optical routing can be achieved throughsoliton interactions. This requires, however, fast build up and sensitivity to telecommunication wavelengths. Wehave investigated the build up of infrared (1, 06m) photorefractive solitons in iron doped indium phosphide(InP:Fe) and shown that PR self focusing occurs at input powers of hundreds of W and intensities in the range ofW/cm(2) showing a build up time down to the microsecond.Conference Title: 8th Conference on OpticsConference Date: SEP 04-07, 2006Conference Location: Sibiu, ROMANIASponsor(s): Romanian Phys Soc, Div Opt & Quantum Elect; SPIE Romanian ChapterTimes Cited in Web of Science: 0Total Times Cited: 0ISSN: 0277-786XISBN: 978-0-8194-6949-6Book DOI:

Record 78 of 100Author(s): Pettazzi, Federico; Coda, V.; Chauvet, Mathieu; Fazio, EugenioEditor(s): Bertolotti, MTitle: Self-induced waveguides created by second harmonic generation in lithium niobate - art. no. 65820ESource: Nonlinear Optics and Applications IIBook Series Title: PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATIONENGINEERS (SPIE)Volume: 6582Pages: E5820-E5820Article Number: 65820EDOI: 10.1117/12.722701Published: 2007Abstract: In this paper we study second harmonic generation in Lithium Niobate in presence of photorefractiveand photovoltaic effect. Our investigation reveals that the application of a strong external bias causes a selffocusing effect that efficiently traps both the generated second harmonic and the fundamental beam, resulting inan improved conversion efficiency. The variation of the second harmonic output power during the build up of thespace charge field also testifies that the phase relation between the interacting waves is affected by thephotorefractive effect, and that the phase matching condition is modified in the part of the crystal shined by thelight.Finally, we introduce a numerical model in order to explain the complex dynamic between the photorefractiveeffect and parametric process. The developed theory is in qualitative agreement with the performed experiments.Conference Title: Conference on Nonlinear Optics and Applications IIConference Date: APR 16-18, 2007Conference Location: Prague, CZECH REPUBLICSponsor(s): SPIE Europe; SPIE Czech Republic; COST; European Sci Fdn; Czech & Slovak Soc Photon;ePIXnet; Fyzikalni Ustav; Meta Morphose; Network Excellence Mict-Opt; PhOREMOST; SPIE Poland ChapterTimes Cited in Web of Science: 0Total Times Cited: 0ISSN: 0277-786XISBN: 978-0-8194-6710-2Book DOI:


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Record 79 of 100Author(s): Michaud, J.; Fanjoux, G.; Maillotte, H.; Furfaro, L.; Sylvestre, T.Title: Slow light induced by stimulated Raman scattering on spatial Kerr solitonSource: ANNALES DE PHYSIQUEVolume: 32Issue: 2-3Pages: 103-106DOI: 10.1051/anphys:2008018Published: 2007Abstract: We present numerical and experimental results demonstrating the slow light effect induced by thesharp resonance of the Raman gain on a spatial Raman soliton in a Kerr planar waveguide.Conference Title: 10th Colloquium on Lasers and Quantum Optics (COLOQ 10)Conference Date: JUL 02-05, 2007Conference Location: Grenoble, FRANCETimes Cited in Web of Science: 1Total Times Cited: 1ISSN: 0003-4169Book DOI:

Record 80 of 100Author(s): Beugnot, Jean-Charles; Sylvestre, Thihaut; Maillotte, Herve; Melin, Gilles; Laude, VincentTitle: Guided acoustic wave Brillouin scattering in photonic crystal fibersSource: OPTICS LETTERSVolume: 32Issue: 1Pages: 17-19DOI: 10.1364/OL.32.000017Published: JAN 1 2007Abstract: We experimentally investigate guided acoustic wave Brillouin scattering in several photonic crystalfibers by use of the so-called fiber loop mirror technique and show a completely different dynamics with respectto standard all-silica fibers. In addition to the suppression of most acoustic phonons, we show that forwardBrillouin scattering in photonic crystal fibers is substantially enhanced only for the fundamental acoustic phononbecause of efficient transverse acousto-optic field overlap. The results of our numerical simulations reveal thatthis high-frequency phonon is indeed trapped within the fiber core by the air-hole microstructure, in goodagreement with experimental measurements. (c) 2006 Optical Society of America.Times Cited in Web of Science: 12Total Times Cited: 13ISSN: 0146-9592Book DOI:

Record 81 of 100Author(s): Vedadi, A.; Alasia, D.; Lantz, E.; Maillotte, H.; Thevehaz, L.; Gonzalez-Herraez, M.; Sylvestre, T.Title: Brillouin optical time-domain analysis of fiber-optic parametric amplifiersSource: IEEE PHOTONICS TECHNOLOGY LETTERSVolume: 19Issue: 2-4


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Pages: 179-181DOI: 10.1109/LPT.2006.890039Published: JAN-FEB 2007Abstract: We carried out distributed measurements of the longitudinal gain of fiber-optical parametric amplifiersusing a novel sensing technique based on Brillouin optical time-domain analysis. Using this technique, wesuccessfully characterized different gain behaviors in the linear and the saturation regimes. In addition, wedemonstrated the recently predicted gain reciprocity at opposite ends of the amplifier span.Times Cited in Web of Science: 2Total Times Cited: 2ISSN: 1041-1135Book DOI:

Record 82 of 100Author(s): Morand, Alain; Zhang, Yang; Martin, Bruno; Huy, Kien Phan; Amans, David; Benech, Pierre;Verbert, Jeremy; Hadji, Emmanuel; Fedeli, Jean-MarcTitle: Ultra-compact microdisk resonator filters on SOI substrateSource: OPTICS EXPRESSVolume: 14Issue: 26Pages: 12814-12821DOI: 10.1364/OE.14.012814Published: DEC 25 2006Abstract: The evanescent coupling of a 1.5 mu m radius silicon microdisk with one or two Silicon-On-Insulatorwaveguides is studied. Thanks to the high refractive index contrast between Silica and Silicon materials, thisvery-small-diameter microdisk exhibits the highest quality factor measured in wavelength range from 1500 nm to1600 nm. Coupled to a single monomode waveguide, the optical resonator behaves as a stop-band filter. Even ifthe microdisk is a largely multimode resonator, only its fundamental modes are efficiently excited. The filter'stransmission is measured for different gap between the waveguide and the resonator. The critical coupling isclearly observed and gives access to 1.63 nm linewidth. A 20 dB decrease of the transmission signal is alsoobserved. Coupled to two waveguides, the resonator becomes a compact symmetric wavelength-demultiplexer.In this case, the optimal response comes from a compromise between the gap and the desired linewidth droppedin the second waveguide. Finally, our measurements are also compared to analytic models showing a goodagreement especially for the critical gap prediction. (C) 2006 Optical Society of America.Times Cited in Web of Science: 14Total Times Cited: 14ISSN: 1094-4087Book DOI:

Record 83 of 100Author(s): Fanjoux, Gil; Michaud, Jeremy; Delque, Michael; Maillotte, Herve; Sylvestre, ThibautTitle: Generation of multicolor vector Kerr solitons by cross-phase modulation, four-wave mixing, andstimulated Raman scatteringSource: OPTICS LETTERSVolume: 31Issue: 23Pages: 3480-3482DOI: 10.1364/OL.31.003480


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Published: DEC 1 2006Abstract: We numerically and experimentally show the existence of multicolor vector spatial solitons in a Kerrplanar waveguide through the combined effects of cross-phase modulation, four-wave mixing, and stimulatedRaman scattering. Mutual spatial guiding of the Raman-Stokes, anti-Stokes, and pump waves is achieved in thehigh-conversion regime mainly by cross-phase modulation and phase-matched four-wave mixing induced by apower imbalance between Stokes and anti-Stokes components, leading to the generation of a clear-cut sech-shapethree-frequency spatial soliton. (c) 2006 Optical Society of America.Times Cited in Web of Science: 11Total Times Cited: 11ISSN: 0146-9592Book DOI:

Record 84 of 100Author(s): Schroder, Jochen; Coen, Stephane; Vanholsbeeck, Frederique; Sylvestre, ThibautTitle: Passively mode-locked Raman fiber laser with 100 GHz repetition rateSource: OPTICS LETTERSVolume: 31Issue: 23Pages: 3489-3491DOI: 10.1364/OL.31.003489Published: DEC 1 2006Abstract: We experimentally demonstrate the operation of a passively mode-locked Raman fiber ring laser withan ultrahigh repetition rate of 100 GHz and up to 430 mW of average output power. This laser constitutes asimple wavelength versatile pulsed optical source. Stable mode locking is based on dissipative four-wave mixingwith a single fiber Bragg grating acting as the mode-locking element. (c) 2006 Optical Society of America.Times Cited in Web of Science: 18Total Times Cited: 18ISSN: 0146-9592Book DOI:

Record 85 of 100Author(s): Vedadi, Armand; Mussot, Arnaud; Lantz, Eric; Maillotte, Herve; Sylvestre, ThibautTitle: Theoretical study of gain distortions in dual-pump fiber optical parametric amplifiersSource: OPTICS COMMUNICATIONSVolume: 267Issue: 1Pages: 244-252DOI: 10.1016/j.optcom.2006.05.074Published: NOV 1 2006Abstract: We study analytically and numerically the small signal gain in dual-pump fiber optical parametricamplifiers by including the phase modulation of the pump waves needed for practically increasing the stimulatedBrillouin scattering threshold. As for the single-pump case, we show that large signal gain distortions aregenerated under co-phase modulation, which depend on the rise/fall time of the phase modulation and on thefiber dispersion slope. However, it is clearly confirmed that the counter-phase modulation scheme allows toefficiently suppress these gain distortions over the whole flat gain region. In addition, we demonstrate throughrealistic numerical simulations that this useful technique overcomes the additional impact of pump-phasemodulation to amplitude modulation conversion and zero-dispersion wavelength variations. (c) 2006 Publishedby Elsevier B.V.


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Times Cited in Web of Science: 5Total Times Cited: 5ISSN: 0030-4018Book DOI:

Record 86 of 100Author(s): Chauvet, Mathieu; Fu, Guoyuan; Salamo, GregoryTitle: Assessment method for photo-induced waveguidesSource: OPTICS EXPRESSVolume: 14Issue: 22Pages: 10726-10732DOI: 10.1364/OE.14.010726Published: OCT 30 2006Abstract: A method to probe the guiding characteristics of waveguides formed in real-time is proposed andevaluated. It is based on the analysis of the time dependent light distribution observed at the exit face of thewaveguide while progressively altering its index profile and probed by a large diameter optical beam. A beampropagation method is used to model the observed dynamics. The technique is applied to retrieve the propertiesof soliton-induced waveguides. (c) 2006 Optical Society of America.Times Cited in Web of Science: 0Total Times Cited: 0ISSN: 1094-4087Book DOI:

Record 87 of 100Author(s): Fanjoux, G.; Michaud, J.; Delque, M.; Maillotte, H.; Sylvestre, T.Title: Experimental observation of a two-coloured spatial soliton in a Kerr environment in the presence ofstimulated Raman diffusionSource: JOURNAL DE PHYSIQUE IVVolume: 135Pages: 309-310DOI: 10.1051/jp4:2006135101Published: OCT 2006Conference Title: 9th Colloquium on Lasers and Quantum Optics (COLOQ 9)Conference Date: SEP 07-09, 2005Conference Location: Dijon, FRANCETimes Cited in Web of Science: 0Total Times Cited: 0ISSN: 1155-4339Book DOI:

Record 88 of 100Author(s): Nguyen, Anh Tuan; Huy, Kien Phan; Brainis, Edouard; Mergo, Pawel; Wojcik, Jan; Nasilowski,Tomasz; Van Erps, Jurgen; Thienpont, Hugo; Massar, SergeTitle: Enhanced cross phase modulation instability in birefringent photonic crystal fibers in the anomalousdispersion regime


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Source: OPTICS EXPRESSVolume: 14Issue: 18Pages: 8290-8297DOI: 10.1364/OE.14.008290Published: SEP 4 2006Abstract: We study Cross Phase Modulational Instability (CPMI) - a particular form of vector modulationalinstability- in the anomalous dispersion regime in highly birefringent, strongly dispersive, optical fibers. Whenthe pump power is high, the detuning of the Scalar Modulational Instability (SMI) is comparable to the detuningof the CPMI. The gain of the CPMI - which is usually much smaller than the gain of the SMI-, is then stronglyenhanced and becomes much larger than the gain of the SMI. This theoretical prediction is well verifiedexperimentally using small core photonic crystal fibers. (c) 2006 Optical Society of AmericaTimes Cited in Web of Science: 10Total Times Cited: 10ISSN: 1094-4087Book DOI:

Record 89 of 100Author(s): Auguie, B.; Mussot, A.; Boucon, A.; Lantz, E.; Sylvestre, T.Title: Ultralow chromatic dispersion measurement of optical fibers with a tunable fiber laserSource: IEEE PHOTONICS TECHNOLOGY LETTERSVolume: 18Issue: 17-20Pages: 1825-1827DOI: 10.1109/LPT.2006.881148Published: SEP-OCT 2006Abstract: We describe a novel convenient technique to allow for the accurate measurement of the dispersioncoefficients till fourth-order in the zero-dispersion wavelength region of single-mode optical fibers. The proposedmethod is based on a careful spectral analysis of modulation instability occurring in both normal and anomalousdispersion regime and the associated dispersive waves emitted by soliton fission. It simply requires a high-powertunable continuous-wave fiber laser and an optical spectrum analyzer and is able to retrieve both the sign andmagnitude of dispersion coefficients with enhanced precision.Times Cited in Web of Science: 6Total Times Cited: 6ISSN: 1041-1135Book DOI:

Record 90 of 100Author(s): Sylvestre, T; Vedadi, A; Maillotte, H; Vanholsbeeck, F; Coen, STitle: Supercontinuum generation using continuous-wave multiwavelength pumping and dispersion managementSource: OPTICS LETTERSVolume: 31Issue: 13Pages: 2036-2038DOI: 10.1364/OL.31.002036Published: JUL 1 2006


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Abstract: We experimentally demonstrate that continuous-wave supercontinuum generation in optical fibers canbe significantly enhanced by using both multiwavelength pumping and dispersion management. We show bydetailed spectral analysis that continuum enhancement is achieved mainly through a combination of Raman-assisted modulation instabilities, soliton compression, and dispersive wave generation. With this technique, an800 nm wide (from 1.2 to 2.0 mu m) 2 W supercontinuum. source is reported that uses a three-wavelength pumpand a dispersion-tailored four-optical fibers arrangement. (c) 2006 Optical Society of America.Times Cited in Web of Science: 13Total Times Cited: 13ISSN: 0146-9592Book DOI:

Record 91 of 100Author(s): Chauvet, Mathieu; Guo, Aqiang; Fu, Guoyan; Salamo, GregoryTitle: Electrically switched photoinduced waveguide in unpoled strontium barium niobateSource: JOURNAL OF APPLIED PHYSICSVolume: 99Issue: 11Article Number: 113107DOI: 10.1063/1.2202119Published: JUN 1 2006Abstract: The unpoled photorefractive strontium barium niobate crystal exhibiting quadratic electro-opticproperties is characterized. It is used to form one-dimensional and two-dimensional bright photorefractive spatialsolitons for either positive or negative low applied electric field. Solitons induce long-lived index changes in themedium which forms waveguides that can be tuned using an external voltage. (c) 2006 American Institute ofPhysics.Times Cited in Web of Science: 7Total Times Cited: 8ISSN: 0021-8979Book DOI:

Record 92 of 100Author(s): Fanjoux, Gil; Lantz, Eric; Devaux, Fabrice; Maillotte, HerveTitle: Stability of spatial soliton arrays generated in a noninstantaneous Kerr medium from partiallyspatiotemporally coherent lightSource: JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICSVolume: 23Issue: 6Pages: 1099-1108DOI: 10.1364/JOSAB.23.001099Published: JUN 2006Abstract: We demonstrate numerically and experimentally how spatial soliton arrays generated throughmodulation instability in a planar waveguide with relaxing Kerr nonlinearity can be spatially and temporallydestabilized when using a partially spatiotemporally coherent light pulse. However, the amplitude of theshot-to-shot spatial jitter is limited. This jitter depends on the correlation degree of the spatial noise betweenpulses, and this correlation degree strongly depends on the spatiotemporal coherence of the propagating beam.(c) 2006 Optical Society of America.Times Cited in Web of Science: 0


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Total Times Cited: 0ISSN: 0740-3224Book DOI:

Record 93 of 100Author(s): Khelfaoui, N; Wolfersberger, D; Kugel, G; Fressengeas, N; Chauvet, MTitle: Temporal behavior of two-wave-mixing in photorefractive InP : Fe versus temperatureSource: OPTICS COMMUNICATIONSVolume: 261Issue: 1Pages: 169-174DOI: 10.1016/j.optcom.2005.12.001Published: MAY 1 2006Abstract: The temporal response of two-wave-mixing in photorefractive InP:Fe under a dc electric field atdifferent temperatures has been studied. In particular, the temperature dependence of the characteristic timeconstant has been studied both theoretically and experimentally, showing a strongly decreasing time constantwith increasing temperature. (C) 2005 Elsevier B.V. All rights reserved.Times Cited in Web of Science: 6Total Times Cited: 6ISSN: 0030-4018Book DOI:

Record 94 of 100Author(s): Brustlein, S; Devaux, F; Lantz, ETitle: Limits of amplification of weak imagesSource: JOURNAL OF MODERN OPTICSVolume: 53Issue: 5-6Pages: 799-807DOI: 10.1080/09500340500225962Published: MAR-APR 2006Abstract: Optical amplification of a signal or an image is always accompanied by amplification of quantumnoise with a mean rate corresponding to, in the limit of high gain, the input noise of one photon per spatio-temporal mode. We show that an image of dye fluorescence can be retrieved with good contrast after parametricamplification, even if the level of the input image corresponds to significantly less than one photon per mode.Theoretical limits are assessed.Conference Title: International Workshop on Imaging at the LimitsConference Date: SEP 06-11, 2004Conference Location: IESE, Cargese, FRANCEConference Host: IESETimes Cited in Web of Science: 3Total Times Cited: 3ISSN: 0950-0340Book DOI:

Record 95 of 100


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Author(s): Jager, R; Gorza, SP; Cambournac, C; Haelterman, M; Chauvet, MTitle: Sharp waveguide bends induced by spatial solitonsSource: APPLIED PHYSICS LETTERSVolume: 88Issue: 6Article Number: 061117DOI: 10.1063/1.2172649Published: FEB 6 2006Abstract: We experimentally demonstrate the ability of a self-guided laser beam to induce waveguides withsharp bends. The beam is a two-dimensional photorefractive screening-photovoltaic bright spatial solitongenerated inside a biased lithium-niobate crystal shaped as a prism. The soliton robustness against total internalreflections is shown to leave place to a low-loss unimodal waveguide undergoing multiple zero-radius 90 degreesturns. (c) 2006 American Institute of Physics.Times Cited in Web of Science: 7Total Times Cited: 7ISSN: 0003-6951Book DOI:

Record 96 of 100Author(s): Wolfersberger, D.; Khelfaoui, N.; Kugel, G.; Fressengeas, N.; Chauvet, M.Editor(s): Sheridan, JT; Wyrowski, FTitle: Fast self-induced waveguides in photorefractive semiconductor InP : Fe for reconfigurable opticalswitchingSource: PHOTON MANAGEMENT IIBook Series Title: Proceedings of SPIEVolume: 6187Pages: U287-U292Article Number: 61870QDOI: 10.1117/12.662903Published: 2006Abstract: This paper presents a theoretical and experimental investigation of the self-focusing of a singleinfrared laser beam in the photorefractive semi-conductor InP : Fe for applications in the telecommunicationswavelengths as reconfigurable optical switching. The temporal response of two-wave-mixing in photorefractiveInP:Fe under a dc electric field at different temperatures has been studied showing that the temperature as well asthe intensity can be used to tune the photorefractive response time. In that way, we analyze both experimentallyand theoretically the space-charge field build-up with respect to time and space and provide strong hints on theshort time self-focusing of an infrared laser beam in InP:Fe with time response in the range of the microseconds.Conference Title: Conference on Photon Management IIConference Date: APR 03-04, 2006Conference Location: Strasbourg, FRANCESponsor(s): SPIE; Conseil Gen Bas Rhin; Commun Urbaine Strasbourg; Reg Alsace; Alsace Dev AgcyTimes Cited in Web of Science: 0Total Times Cited: 0ISSN: 0277-786XISBN: 0-8194-6243-8Book DOI:


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Record 97 of 100Author(s): Pettazzi, Federico; Lehau, Grigore; Alonzo, Massimo; Sada, Cinzia; Bazzan, Marco; Argiolas,Nicola; Mazzoldi, Paolo; Chauvet, Mathieu; Vlad, Valentin Ionel; Petris, Adrian; Fazio, EugenioEditor(s): Righini, GCTitle: Photorefractive bright soliton in erbium doped lithium niobate - art. no. 618319Source: Integrated Optics, Silicon Photonics, and Photonic Integrated CircuitsBook Series Title: PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATIONENGINEERS (SPIE)Volume: 6183Pages: 18319-18319Article Number: 618319DOI: 10.1117/12.664082Published: 2006Abstract: We present the first investigation of bright screening soliton formation in Erbium doped lithiumniobate grown by the Czochrlaski technique (0.7% mol.). We analyse the formation of two-dimensional spatialsoliton and study its long term stability. Measurements of photovoltaic current show that presence of erbium inthe lattice cause an increase of the current density. Both dynamic of soliton formation and photovoltaicmeasurements indicates a lower NA content in erbium doped samples compared to undoped samples.Conference Title: Conference on Integrated Optics, Silicon Photonics, and Photonic Integrated CircuitsConference Date: APR 03-05, 2006Conference Location: Strasbourg, FRANCESponsor(s): SPIE Europe; Conseil Gen Bas Rhin; Communaute Urbaine Strasbourg; Reg Alsace; Alsace DevAgcyTimes Cited in Web of Science: 0Total Times Cited: 0ISSN: 0277-786XISBN: 0-8194-6239-XBook DOI:

Record 98 of 100Author(s): Khelfaoui, N; Wolfersberger, D; Kugel, G; Fressengeas, N; Chauvet, MTitle: Time resolved applied electric field masking in photorefractive semiconductorsSource: OPTICAL AND QUANTUM ELECTRONICSVolume: 38Issue: 1-3Pages: 63-69DOI: 10.1007/s11082-006-0011-zPublished: JAN 2006Abstract: We propose a theoretical analysis of the temporal self-focusing phenomena in the iron-doped indiumphosphide (InP: Fe) semiconductor for low irradiations with continuous laser beams at infrared wavelengths foroptical telecommunication applications such as optical switching and optical routing. Numerical models usingtwo different methods based on charge transport equations are developed. The first method uses the classicalfinite differences scheme whereas the second method uses a novel algorithm based on Cellular Automata. Owingto the complexity of the non-linear differential system to be solved, full results are not retrieved but promisingpreliminary results are obtained and reviewed in this paper: they allow us to foresee that self-focusing on themillisecond time scale is possible in InP: Fe.Conference Title: 13th International Workshop on Optical Waveguide Theory and Numerical Modelling


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Conference Date: APR 08-09, 2005Conference Location: Grenoble, FRANCETimes Cited in Web of Science: 0Total Times Cited: 0ISSN: 0306-8919Book DOI:

Record 99 of 100Author(s): Mussot, A; Lantz, E; Durecu-Legrand, A; Simonneau, C; Bayart, D; Sylvestre, T; Maillotte, HTitle: Zero-dispersion wavelength mapping in short single-mode optical fibers using parametric amplificationSource: IEEE PHOTONICS TECHNOLOGY LETTERSVolume: 18Issue: 1-4Pages: 22-24DOI: 10.1109/LPT.2005.860029Published: JAN-FEB 2006Abstract: We demonstrate a novel convenient nondestructive method based on optical parametric amplificationthat allows retrieval of the zero-dispersion wavelength map along a short optical fiber span with a high-spatialresolution. The improved resolution relies on the high sensitivity to the local longitudinal dispersion fluctuationsof the parametric high-gain spectrum.Times Cited in Web of Science: 12Total Times Cited: 12ISSN: 1041-1135Book DOI:

Record 100 of 100Author(s): Delque, M; Sylvestre, T; Maillotte, H; Cambournac, C; Kockaert, P; Haelterman, MTitle: Experimental observation of the elliptically polarized fundamental vector soliton of isotropic Kerr mediaSource: OPTICS LETTERSVolume: 30Issue: 24Pages: 3383-3385DOI: 10.1364/OL.30.003383Published: DEC 15 2005Abstract: We report the experimental observation of the elliptically polarized fundamental vector soliton ofisotropic Kerr media and its unique polarization evolution. This was achieved in the spatial domain in anonbirefringent CS2 planar waveguide. (c) 2005 Optical Society of America.Times Cited in Web of Science: 16Total Times Cited: 16ISSN: 0146-9592Book DOI:


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Widely Tunable Parametric Amplification and Pulse Train Generation by Heating a Photonic Crystal...

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