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Influence of stimulated Raman scattering on Kerr domain walls and localized structures

par Parra-Rivas, Pedro ;Coulibaly, Saliya;Clerc, M. G.;Tlidi, Mustapha
Référence Physical Review A, 103, 1
Publication Publié, 2021-01-01

Article révisé par les pairs

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Résumé :

We investigate the influence of the stimulated Raman scattering on the formation of bright and dark localized states in all-fiber resonators subject to a coherent optical injection, when operating in the normal dispersion regime. In the absence of the Raman effect, and far from any modulational instability, localized structures form due to the locking of domain walls connecting two coexisting continuous wave states, and undergo a particular bifurcation structure known as collapsed snaking. The stimulated Raman scattering breaks the reflection symmetry of the system, and modifies the dynamics, stability, and locking of domain walls. This modification leads to the formation of, not only dark, but also bright moving localized states, which otherwise are absent. We perform a detailed bifurcation analysis of these localized states, and classify their dynamics and stability as a function of the main parameters of the system.