Charles Ciret
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View article: Spectral-filtering-induced phase transition in passively mode-locked fiber lasers
Spectral-filtering-induced phase transition in passively mode-locked fiber lasers Open
We investigate the effect of a tunable spectral filter on the dynamics of a passively mode-locked fiber laser in the anomalous dispersion regime. The results show that noise-like pulse emission evolves toward bound-state regime as the filt…
View article: Coherence characterization of nanosecond rectangular pulses in passively mode-locked fiber lasers
Coherence characterization of nanosecond rectangular pulses in passively mode-locked fiber lasers Open
Dissipative soliton resonance (DSR) phenomenon is a recent concept of pulse formation proposed to achieve a high-energy passively mode-locked fiber laser. Such pulses have general features, e.g., flat-top temporal profile, energy scalabili…
View article: Second-harmonic generation enabled by longitudinal electric-field components in photonic wire waveguides
Second-harmonic generation enabled by longitudinal electric-field components in photonic wire waveguides Open
We investigate type I second harmonic generation in III-V semiconductor wire\nwaveguides aligned with a crystallographic axis. In this direction, because of\nthe single nonzero tensor element of III-V semiconductors, only frequency\nconver…
View article: Modeling of quasi-phase-matched cavity-enhanced second-harmonic generation
Modeling of quasi-phase-matched cavity-enhanced second-harmonic generation Open
We propose a mean-field model to describe second harmonic generation in a\nresonator made of a material with zincblende crystalline structure. The model\nis obtained through an averaging of the propagation equations and boundary\ncondition…
View article: Octave spanning supercontinuum generation in dispersion-managed silicon waveguides
Octave spanning supercontinuum generation in dispersion-managed silicon waveguides Open
Coherent supercontinuum spanning [1.2-2.7] μm is experimentally demonstrated in dispersion-managed silicon waveguides. We show that part of the spectrum is broadened by the trapping of dispersive waves, lowering the power to get octave-spa…
View article: Four-wave mixing and enhanced analog Hawking effect in a nonlinear optical waveguide
Four-wave mixing and enhanced analog Hawking effect in a nonlinear optical waveguide Open
We study in detail the scattering of light on a soliton propagating in a\nwaveguide which has been proposed as an experimental system in which one could\nobserve the analogue Hawking effect. When not applying the rotating wave\napproximati…
View article: Measurement of the third order optical nonlinearities of graphene quantum dots in water at 355 nm, 532 nm and 1064 nm
Measurement of the third order optical nonlinearities of graphene quantum dots in water at 355 nm, 532 nm and 1064 nm Open
The nonlinear responses of the suspension of graphene quantum dots (GQDs) in water are investigated at 355 nm, 532 nm and 1064 nm in the picosecond regime. The third-order nonlinear (NL) refractive index and the NL absorption coefficients …
View article: Physical origin of higher-order soliton fission in nanophotonic semiconductor waveguides
Physical origin of higher-order soliton fission in nanophotonic semiconductor waveguides Open
View article: Physical origin of higher-order soliton fission in nanophotonic\n semiconductor waveguides
Physical origin of higher-order soliton fission in nanophotonic\n semiconductor waveguides Open
Supercontinuum generation in Kerr media has become a staple of nonlinear\noptics. It has been celebrated for advancing the understanding of soliton\npropagation as well as its many applications in a broad range of fields.\nCoherent spectra…
View article: Optical nonlinear propagation dynamics in silicon photonic wire waveguides
Optical nonlinear propagation dynamics in silicon photonic wire waveguides Open
info:eu-repo/semantics/published
View article: Quantum-like adiabatic light transfer in photo-induced waveguides with longitudinally varying detuning
Quantum-like adiabatic light transfer in photo-induced waveguides with longitudinally varying detuning Open
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View article: Generation of ultra-broadband coherent supercontinua in tapered and dispersion-managed silicon nanophotonic waveguides
Generation of ultra-broadband coherent supercontinua in tapered and dispersion-managed silicon nanophotonic waveguides Open
Tapered and dispersion managed (DM) silicon nanophotonic waveguides are\ninvestigated for the generation of optimal ultra broadband supercontinuum (SC).\nDM waveguides are structures showing a longitudinally dependent group velocity\ndispe…
View article: Control of adiabatic light transfer in coupled waveguides with longitudinally varying detuning
Control of adiabatic light transfer in coupled waveguides with longitudinally varying detuning Open
We study adiabatic light transfer in systems of two coupled waveguides with spatially varying detuning of the propagation constants, providing an analogy to the quantum phenomena of rapid adiabatic passage (RAP) and two-state stimulated Ra…
View article: Observation of two-photon absorption induced soliton fission
Observation of two-photon absorption induced soliton fission Open
Solitons are well known solutions of the nonlinear Schrodinger equation (NLSE). In optics, temporal solitons are localized wavepackets that travel unperturbed in dispersive Kerr media. They can be of different order, with only first order …
View article: Generation of ultra broadband coherent supercontinuum in tapered and dispersion managed silicon nanophotonic waveguides
Generation of ultra broadband coherent supercontinuum in tapered and dispersion managed silicon nanophotonic waveguides Open
Tapered and dispersion managed (DM) silicon nanophotonic waveguides are investigated for the generation of optimal ultra broadband supercontinuum (SC). DM waveguides are structures showing a longitudinally dependent group velocity dispersi…
View article: Measuring the nonlinear refractive index of graphene using the optical Kerr effect method
Measuring the nonlinear refractive index of graphene using the optical Kerr effect method Open
© 2016 Optical Society of America.By means of the ultrafast optical Kerr effect method coupled to optical heterodyne detection (OHD-OKE), we characterize the third-order nonlinear response of graphene and compare it to experimental values …
View article: Scattering of a cross-polarized linear wave by a soliton at an optical event horizon in a birefringent nanophotonic waveguide
Scattering of a cross-polarized linear wave by a soliton at an optical event horizon in a birefringent nanophotonic waveguide Open
The scattering of a linear wave on an optical event horizon, induced by a cross-polarized soliton, is experimentally and numerically investigated in integrated structures. The experiments are performed in a dispersion-engineered birefringe…
View article: Observation of an optical event horizon in a silicon-on-insulator photonic wire waveguide
Observation of an optical event horizon in a silicon-on-insulator photonic wire waveguide Open
We report on the first experimental observation of an optical analogue of an event horizon in integrated nanophotonic waveguides, through the reflection of a continuous wave on an intense pulse. The experiment is performed in a dispersion-…
View article: On-chip optical event horizon
On-chip optical event horizon Open
The interaction of waves in nonlinear Kerr waveguides are, under some circumstances, similar to the physics occurring at the horizon of black and white holes. Here, we investigate this analogy in an integrated nonlinear photonic structure …
View article: Anisotropic build-up of photo-induced waveguides in biased photorefractive media
Anisotropic build-up of photo-induced waveguides in biased photorefractive media Open
View article: Demonstration of an optical event horizon in a silicon nanophotonic waveguide
Demonstration of an optical event horizon in a silicon nanophotonic waveguide Open
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