Journal
PHYSICAL REVIEW A
Volume 104, Issue 5, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.104.053530
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Funding
- Fonds Wetenschappelijk Onderzoek-Vlaanderen FWO [G0E5819N]
- Methusalem Foundation
- Fonds de la Recherche Scientifique FNRS [35333527]
- Laboratoire Associe International University of Lille-ULB on Selforganisation of light and extreme events (LAI-ALLURE)
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Investigated the formation of dark vector dissipative solitons in optical resonators with nonlinear polarization mode coupling, attributing the stabilization of dark solitons to a front locking mechanism in the bistable regime. Showed that two branches of dark dissipative solitons can coexist for fixed system parameters with different polarization states and peak powers. The coexistence of two vectorial branches of dark localized states is not possible without considering polarization degrees of freedom.
We investigate the formation of dark vector dissipative solitons in the presence of nonlinear polarization mode coupling in optical resonators subject to a coherent optical injection in the normal dispersion regime. This simple device is described by coupled Lugiato-Lefever equations. The stabilization of dark dissipative solitons is attributed to a front locking mechanism in the bistable regime as shown in a recent communication [B. Kostet et al., OSA Continuum 4, 1564 (2021)]. Here, we focus on a tristable homogeneous steady state regime. We show that two branches of dark dissipative solitons can coexist for a fixed value of the system parameters. These coexisting solutions possess different polarization states and different peak powers in the microresonator. We characterize their formation by drawing their bifurcation diagrams in regimes far from any modulational instability. It is shown that both branches of localized structures exhibit a heteroclinic collapsed snaking type of behavior. The coexistence of two vectorial branches of dark localized states is not possible without taking into account polarization degrees of freedom.
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