Berlin 2018 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 70: Poster: Flows, Patterns, Delay, Reaction Diffusion

DY 70.23: Poster

Donnerstag, 15. März 2018, 15:30–18:00, Poster A

Spatiotemporal instabilities of light bullets in passively-mode-locked lasers — •Frederik Edens¹, Julien Javaloyes², and Svetlana Gurevich¹ — ¹Institute for Theoretical Physics, University of Münster, Wilhelm-Klemm-Str. 9, 48149 Münster, Germany — ²Departament de Física, Universitat de les Illes Balears, C/ Valldemossa km 7.5, 07122 Mallorca, Spain

Recently, the existence of robust three-dimensional light bullets was predicted theoretically in the output of a laser coupled to a distant saturable absorber. We use a generic model of mode-locking that consists in a time-delayed dynamical system, and describe the passively mode-locked laser using the generic Haus partial differential equation. We analyze the stability and the range of existence of these dissipative localized structures in the uniform-field limit and provide guidelines and realistic parameter sets for their experimental observation. We conclude our analysis by the study of the influence of group velocity dispersion on the stability properties of light bullets and show that it may have a profound impact on their dynamics.