Nonlinear Fourier transform enabled eigenvalue spectrum investigation for fiber laser radiation

• DOI: 10.1364/prj.427842
• Publication Date: 2021-06-11T18:00:09Z
• Authors: Yutian Wang; Songnian Fu; Jian Kong; Andrey Komarov; Mariusz Klimczak; Ryszard Buczyński; Xiahui Tang; Ming Tang; Yuwen Qin; Luming Zhao
• Keywords: Dissipative soliton

Fiber lasers are a paradigm of dissipative systems, which distinguish themselves from Hamilton system where energy is conservative. Consequently, pulses generated in fiber laser always accompanied by the continuous wave (CW). Under certain hypothesis, can be considered as soliton, product system. Therefore, all descriptions solitons approximate. Coexistence and CW prevents unveiling real nonlinear dynamics lasers, such soliton interactions. Pulse behavior represented state single pulse, period doubling states two either tightly bound or loosely distributed, three pulses, various combinations above-mentioned states. Recently, distillation was proposed numerically demonstrated based on Fourier transform (NFT) [ J. Lightwave Technol. 39 , 2542 ( 2021 ) JLTEDG0 733-8724 10.1109/JLT.2021.3051036 ]. Solitons separated coherent background. it feasible to isolate background laser. Here, we applied NFT laser, including pulse doubling, different double multiple pulses. Furthermore, with approach distillation, corresponding pure those reconstructed. Simulation results suggest that used identify excluding influence paves new way for uncovering interaction systems.