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arXiv · 1911.12111

Spatiotemporal dissipative solitons and vortices in a multi-transverse-mode fiber laser

Thawatchai Mayteevarunyoo·Boris A. Malomed·Dmitry V. Skryabin
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Abstract

We introduce a model for spatiotemporal modelocking in multimode fiber lasers, which is based on the (3+1)-dimensional cubic-quintic complex Ginzburg-Landau equation (cGLE) with conservative and dissipative nonlinearities and a 2-dimensional transverse trapping potential. Systematic numerical analysis reveals a variety of stable nonlinear modes, including stable fundamental solitons and breathers, as well as solitary vortices with winding number $n=1$, while vortices with $n=2$ are unstable, splitting into persistently rotating bound states of two unitary vortices. A characteristic feature of the system is bistability between the fundamental and vortex spatiotemporal solitons.

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Thawatchai Mayteevarunyoo, Boris A. Malomed, Dmitry V. Skryabin. 2019-11-27. Spatiotemporal dissipative solitons and vortices in a multi-transverse-mode fiber laser. https://doi.org/10.1364/oe.27.037364

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