1. Dynamic diversity of asynchronous pulsating solitons in fiber lasers.
- Author
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Fan, Yuhan, Wang, Xude, Fu, Mingzhu, Lu, Mengxiang, Li, Kaixin, Xu, Aijia, and Li, Suwen
- Subjects
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FIBER lasers , *MODE-locked lasers , *SOLITONS , *FOURIER transforms , *NONLINEAR systems - Abstract
• The generation and evolution of the asynchronous pulsating solitons in a fiber laser. • The dissipative solitons evolve asynchronously along the same and different pulsating solutions, both of which has the same pulsating period. • The asynchronous pulsating solitons evolve in a manner similar to multi-periodic pulsation, the weak pulses undergo temporal shifts during the evolution process. • The two solitons show an asynchronous pulsating operation as a whole, but the pulsation process is accompanied with explosive behavior. Pulsating behavior, as a universal phenomenon in nonlinear dissipative systems, has been widely studied due to its fascinating features. Herein, versatile categories of dual-soliton asynchronous pulsation phenomena are unveiled in net-normal dispersion mode-locked fiber laser by virtue of the dispersive Fourier transform technique. In accordance with the different oscillation behaviors, these phenomena can be divided into asynchronous pulsation following the same and different pulsating solutions, multi-periodic asynchronous pulsation and an asynchronous evolution mode with explosive behavior. It is proved that different pulsating solutions can coexist in the laser. Moreover, the energy evolution of two asynchronous pulsating solitons is almost complementary. The asynchronous pulsation is attributed to the gain-mediated soliton interactions, which make the transient gain response satisfy the dynamic equilibrium assignment. These results will promote the understanding of the complicated multi-soliton dynamics and shed reliable references for exploring the soliton asynchronous pulsation as well as the interactions of multiple pulses. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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