Spatiotemporal solitons and vortices in graded-index multimode lossy fibers

Thawatchai Mayteevarunyoo; Boris A. Malomed; Dmitry V. Skrybin

doi:10.1117/12.2551842

11 March 2020 Spatiotemporal solitons and vortices in graded-index multimode lossy fibers

Thawatchai Mayteevarunyoo, Boris A. Malomed, Dmitry V. Skrybin

Proceedings Volume 11331, Fourth International Conference on Photonics Solutions (ICPS2019); 113310W (2020) https://doi.org/10.1117/12.2551842
Event: Fourth International Conference on Photonic Solutions (ICPS 2019), 2019, Chiang Mai, Thailand

Abstract

We introduce a model of nonlinear multimode fibers with losses and gain. The model is based on the (3+1)-dimensional cubic-quantic complex Ginzburg-Landau equation (CGLE) with conservative and dissipative nonlinearities and a 2- dimensional transverse trapping potential. It applies to passively mode-locked lasers in the short-pulse operation regime. Systematic numerical analysis of the model reveals a variety of stable 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. An essential finding is biostability between the fundamental and vortex solitons.

Citation Download Citation

Thawatchai Mayteevarunyoo, Boris A. Malomed, and Dmitry V. Skrybin "Spatiotemporal solitons and vortices in graded-index multimode lossy fibers", Proc. SPIE 11331, Fourth International Conference on Photonics Solutions (ICPS2019), 113310W (11 March 2020); https://doi.org/10.1117/12.2551842

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