We demonstrate that wave-breaking dramatically affects the dynamics of nonlinear
frequency conversion processes that operate in the regime of high efficiency (strong multiple …

We report the observation of the thermalization of the Fermi-Pasta-Ulam-Tsingou recurrence
process in optical fibers. We show the transition from a reversible regime to an irreversible …

We investigate the spontaneous growth of noise that accompanies the nonlinear evolution of
seeded modulation instability into Fermi–Pasta–Ulam recurrence. Results from the Floquet …

We investigate the frequency comb spectrum produced in an optical fiber via multiple four-
wave mixing pumped in the normal group-velocity region close to the zero-dispersion …

We investigate the propagation of two parallel polarized pump beams in the framework of a
single nonlinear Schrödinger equation in order to thoroughly understand the modulation …

The generalized nonlinear Schrödinger equation with full dispersion (FDNLS) is considered
in the semiclassical regime. The Whitham modulation equations are obtained for the FDNLS …

Using the linear phase shaping of a simple four-line optical frequency comb, we
experimentally demonstrate the generation of various optical waveforms such as parabolic …

We have carried out an extensive theoretical study of cross-phase modulation induced
modulation instability (MI) in a silicon-on-insulator nano-waveguide for two co-propagating …

Le mélange à quatre ondes est un effet non linéaire sensible à la phase qui suscite de
nombreux intérêts dans le domaine de la génération de peignes de fréquences et du …

This thesis work deals with experimental investigations of the Fermi-Pasta-Ulam-Tsingou
(FPUT) recurrences in optical fibers, which are induced by the nonlinear regime of …