0000000000970010
AUTHOR
Lionel Provost
Generation of localized pulses from incoherent wave in optical fiber lines made of concatenated Mamyshev regenerators
International audience; We investigate the novel properties of optical fiber lines made of Mamyshev regenerators (MRs) based on self-phase modulation and subsequent spectral filtering. In particular, we show that such a regenerator line can be used to generate random sequences of optical pulses from an incoherent wave. This behavior is related to the existence of stable eigenpulses that can propagate unchanged through the regenerator line and act as attractors for incoming pulses. By changing the regenerator parameters, we also report the existence of multiple eigenpulses and limit cycles. Finally, we demonstrate that MRs could be used as efficient nonlinear gates in fiber laser cavities.
Generation of localized pulses from incoherent wave in optical fiber lines made of concatened Mamyshev regenerators
International audience
Parabolic pulse generation through passive reshaping of gaussian pulses in a normally dispersive fiber
We numerically and experimentally demonstrate that a Gaussian pulse can be reshaped into a pulse with a stable parabolic intensity profile during propagation in normally dispersive nonlinear fibers.
Simultaneous 2R regeneration of WDM signals in a single optical fibre
Two experimental implementations of amplitude regeneration of WDM signals based on self-phase modulation (SPM) in optical fibres are discussed. The two examples differ in their approach of mitigation of inter-channel nonlinearities.
2R regeneration architectures based on multi-segmented fibres
The benefits of using a multi-segmented arrangement of optical fibres for Self-Phase Modulation-based 2R optical regeneration are described both theoretically and experimentally. Significant improvements in terms of the performance and practicality are achieved.
Generalisation and experimental validation of design rules for self-phase modulation-based 2R regenerators
We report the design of 2R-regenerators based on self-phase modulation in lossy fibers. We experimentally demonstrate the applicability of the proposed scaling rules and present detailed characterization of the pulse characteristics at the regenerator output.
Generation of aperiodic picosecond pulses sequences from incoherent optical waves
We present an original method to generate optical pulses trains with random time-interval values from incoherent broadband sources. Our technique relies on the remarkable properties of a line made of cascaded SPM-based optical regenerators.
Beneficial impact of wave-breaking for coherent continuum formation in normally dispersive nonlinear fibers
International audience; 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.
Etude numérique des performances d'un régénérateur 2R à fibre
National audience; Nous étudions l'impact de la gigue initiale d'amplitude sur les performances d'un régénérateur 2R basé sur l'auto-modulation de phase dans une fibre optique. Les paramètres optimaux de fonctionnement du dispositif dépendent significativement de cette gigue initiale. Nous nous intéressons également au rendement énergétique du dispositif et montrons de quelle manière l'utilisation de l'amplification Raman permet de l'accroître.
Self-phase modulation based 2R optical regenerator for the simultaneous processing of two WDM channels
International audience
Génération de séquences d'impulsions picosecondes apériodiques à partir d'ondes optiques incohérentes
National audience
Asymptotic properties of incoherent waves propagating in an all-optical regenerators line
International audience; We present an original method to generate optical pulse trains with random time-interval values from incoherent broadband sources. More precisely, our technique relies on the remarkable properties of a line made of cascaded self-phase modulation-based optical regenerators. Depending on the regenerator parameters, various regimes with noticeably different physical behaviors can be reported.
Design scaling laws for self-phase modulation-based 2R-regenerators
We report global scaling laws linking the design of SPM-based 2R-regenerators to their ability to reduce amplitude noise and improve the signal extinction ratio.