Splitting in the pinning-depinning transition of fronts in long-delayed bistable systems

Year: 2017

Authors: Marino F., Giacomelli G., Barland S.

Autors Affiliation: CNR-Istituto Nazionale di Ottica, largo E. Fermi 6, I-50125 Firenze, Italy; CNR-Istituto dei Sistemi Complessi, via Madonna del Piano 10, I-50019 Sesto Fiorentino, Italy; Université Côte d’Azur, CNRS, INPHYNI, France

Abstract: We investigate the formation of localized domains through front pinning in a periodically forced, bistable semiconductor laser with long-delayed optoelectronic feedback. At difference with 1D spatially extended systems, the transition from the pinning to the propagation regime occurs via two separated bifurcations, each corresponding to the unpinning of one of the fronts surrounding the localized domain. The bifurcation splitting is systematically explored, unveiling the crucial role played by the forcing frequency. The experimental results are reproduced and interpreted by means of a prototypical model of our system.


Volume: 95 (5)      Pages from: 052204  to: 052204

KeyWords: Nonlinear dynamics; Time-delay systems; Semiconductor Lasers
DOI: 10.1103/PhysRevE.95.052204

Citations: 5
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