Bertrand Kibler
Centre national de la recherche scientifique
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Featured researches published by Bertrand Kibler.
Optics Express | 2009
John M. Dudley; Goëry Genty; Frédéric Dias; Bertrand Kibler; Nail Akhmediev
Numerical simulations of the onset phase of continuous wave supercontinuum generation from modulation instability show that the structure of the field as it develops can be interpreted in terms of the properties of Akhmediev Breathers. Numerical and analytical results are compared with experimental measurements of spectral broadening in photonic crystal fiber using nanosecond pulses.
Scientific Reports | 2012
Bertrand Kibler; Julien Fatome; Christophe Finot; Guy Millot; Goëry Genty; Benjamin Wetzel; Nail Akhmediev; Frédéric Dias; John M. Dudley
The nonlinear Schrödinger equation (NLSE) is a central model of nonlinear science, applying to hydrodynamics, plasma physics, molecular biology and optics. The NLSE admits only few elementary analytic solutions, but one in particular describing a localized soliton on a finite background is of intense current interest in the context of understanding the physics of extreme waves. However, although the first solution of this type was the Kuznetzov-Ma (KM) soliton derived in 1977, there have in fact been no quantitative experiments confirming its validity. We report here novel experiments in optical fibre that confirm the KM soliton theory, completing an important series of experiments that have now observed a complete family of soliton on background solutions to the NLSE. Our results also show that KM dynamics appear more universally than for the specific conditions originally considered, and can be interpreted as an analytic description of Fermi-Pasta-Ulam recurrence in NLSE propagation.
Journal of The Optical Society of America B-optical Physics | 2008
Christophe Finot; Bertrand Kibler; Lionel Provost; Stefan Wabnitz
We study the evolution of a pulse propagating in a normally dispersive fiber in the presence of Kerr nonlinearity. We review the temporal and spectral impact of optical wave-breaking in the development of a continuum. The impact of linear losses or gain is also investigated.
Optics Express | 2010
Mohammed El-Amraoui; Julien Fatome; Jean-Charles Jules; Bertrand Kibler; Grégory Gadret; Coraline Fortier; F. Smektala; I. Skripatchev; C. F. Polacchini; Younes Messaddeq; Johann Troles; Laurent Brilland; Marcin Szpulak; Gilles Renversez
We report the fabrication and characterization of the first guiding chalcogenide As(2)S(3) microstructured optical fibers (MOFs) with a suspended core. At 1.55 microm, the measured losses are approximately 0.7 dB/m or 0.35 dB/m according to the MOF core size. The fibers have been designed to present a zero dispersion wavelength (ZDW) around 2 microm. By pumping the fibers at 1.55 microm, strong spectral broadenings are obtained in both 1.8 and 45-m-long fibers by using a picosecond fiber laser.
Optics Express | 2007
Goëry Genty; Paul Kinsler; Bertrand Kibler; John M. Dudley
We describe generalized nonlinear envelope equation modeling of sub-cycle dynamics on the underlying electric field carrier during one-dimensional propagation in fused silica. Generalized envelope equation simulations are shown to be in excellent quantitative agreement with the numerical integration of Maxwells equations, even in the presence of shock dynamics and carrier steepening on a sub-50 attosecond timescale. In addition, by separating the effects of self-phase modulation and third harmonic generation, we examine the relative contribution of these effects in supercontinuum generation in fused silica nanowire waveguides.
Optics Express | 2012
Inna Savelii; O. Mouawad; Julien Fatome; Bertrand Kibler; Frédéric Désévédavy; Grégory Gadret; Jean-Charles Jules; Pierre-Yves Bony; Hiroyasu Kawashima; Weiqing Gao; T. Kohoutek; Takenobu Suzuki; Yasutake Ohishi; F. Smektala
In this work, we report the experimental observation of supercontinua generation in two kinds of suspended-core microstructured soft-glass optical fibers. Low loss, highly nonlinear, tellurite and As2S3 chalcogenide fibers have been fabricated and pumped close to their zero-dispersion wavelength in the femtosecond regime by means of an optical parametric oscillator pumped by a Ti:Sapphire laser. When coupled into the fibers, the femtosecond pulses result in 2000-nm bandwidth supercontinua reaching the Mid-Infrared region and extending from 750 nm to 2.8 µm in tellurite fibers and 1 µm to 3.2 µm in chalcogenide fibers, respectively.
IEEE Journal of Quantum Electronics | 2009
Christophe Finot; John M. Dudley; Bertrand Kibler; David J. Richardson; Guy Millot
Parabolic pulses in optical fibers have stimulated an increasing number of applications. We review here the physics underlying the generation of such pulses as well as the results obtained in a wide range of experimental configurations.
Optics Letters | 2011
Kamal Hammani; Bertrand Kibler; Christophe Finot; Philippe Morin; Julien Fatome; John M. Dudley; Guy Millot
We present experimental and numerical results showing the generation and breakup of the Peregrine soliton in standard telecommunications fiber. The impact of nonideal initial conditions is studied through direct cutback measurements of the longitudinal evolution of the emerging soliton dynamics and is shown to be associated with the splitting of the Peregrine soliton into two subpulses, with each subpulse itself exhibiting Peregrine soliton characteristics. Experimental results are in good agreement with simulations.
Journal of Lightwave Technology | 2009
Julien Fatome; Coraline Fortier; Thanh Nam Nguyen; Thierry Chartier; F. Smektala; Khalida Messaad; Bertrand Kibler; S. Pitois; Grégory Gadret; Christophe Finot; Johann Troles; Frédéric Désévédavy; Patrick Houizot; Gilles Renversez; Laurent Brilland; Nicholas Traynor
In this paper, we investigate the linear and nonlinear properties of GeSbS and AsSe chalcogenide photonic crystal fibers. Through several experimental setups, we have measured the second- and third-order chromatic dispersion, the effective area, losses, birefringence, the nonlinear Kerr coefficient as well as Brillouin and Raman scattering properties.
Optics Letters | 2014
O. Mouawad; J. Picot-Clémente; Foued Amrani; C. Strutynski; Julien Fatome; Bertrand Kibler; Frédéric Désévédavy; Grégory Gadret; Jean-Charles Jules; Dinghuan Deng; Yasutake Ohishi; F. Smektala
An As2S3 fiber-based supercontinuum source that covers 3500 nm, extending from near visible to the midinfrared, is successfully reported by using a 200-fs-pulsed pump with nJ-level energy at 2.5 μm. The main features of our fiber-based source are two-fold. On the one hand, a low-loss As2S3 microstructured optical fiber has been fabricated, with typical attenuation below 2 dB/m in the 1-4 μm wavelength range. On the other hand, a 20-mm-long microstructured fiber sample is sufficient to enable a spectral broadening, spreading from 0.6 to 4.1 μm in a 40 dB dynamic range.