期刊
OPTICS EXPRESS
卷 27, 期 26, 页码 37364-37373出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.27.037364
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资金
- Thailand Research Fund [BRG6080017]
- Russian Foundation for Basic Research [17-02-00081]
- Israel Science Foundation [1287/17]
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. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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