Dresden 2020 – scientific programme

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DY: Fachverband Dynamik und Statistische Physik

DY 58: Poster: Nonlinear Dynamics; Pattern Formation; Networks; Delay Systems; Synchronization

DY 58.3: Poster

Thursday, March 19, 2020, 15:00–18:00, P1C

Influence of time-delayed feedback on the dynamics of temporal localised structures in a passively mode-locked semiconductor laser — •Thomas Seidel¹, Julien Javaloyes², and Svetlana Gurevich^1,3 — ¹Institute for Theoretical Physics, University of Münster, Wilhelm-Klemm-Straße 9, 48149 Münster, Germany — ²Departament de Física, Universitat de les Illes Balears, Carretera Valldemossa km 7.5, 07122 Palma, Spain — ³Center for Nonlinear Science (CeNoS), University of Münster, Corrensstraße 2, 48149 Münster, Germany

We are interested in the influence of the time-delayed optical feedback in the dynamics of temporal localised structures (LSs) in the output of a semiconductor laser with saturable absorber. We use a delayed differential equation model for a ring geometry where the gain medium is coupled to a saturable absorber and a narrow band optical filter. Using a combination of direct time simulations and path-continuation methods we shall show that the presence of feedback can lead to a number of interesting regimes including the generation of satellite trains on the LS's side or can induce a coherence between LSs.