Dynamics of soliton collapse in dissipative pure-quartic soliton laser

Min Luo, Yong Wei, Liang Luo, Jia-Hong Jin, Yu-Jie Kong, Jun-Jie Zhou, Zhi-Yong Liu, Shuang-Hong Tang, Tian Yin, Yue-Xin Chen and Wen-Jin Wang

Chaos, Solitons & Fractals, 2025, vol. 200, issue P1

Abstract: The dissipative pure quartic soliton (DPQS) fiber lasers, based on positive fourth-order dispersion (FOD), have emerged as an effective platform for exploring nonlinear dynamics. Currently, research into the nonlinear dynamics of DPQS has only recently commenced. In this study, by numerically solving the complex Ginzburg-Landau equation (CGLE) incorporating positive FOD, we establish the theoretical framework for understanding DPQS operation. Our findings reveal that increasing the gain saturation energy (Es) induces a distinct pulsation pattern in the temporal evolution of DPQS, closely resembling butterfly wings. Moreover, we demonstrate that further increases Es in lead to the phenomenon of soliton collapse. This work not only provides a significant pathway for advancing our understanding of DPQS but also deepens insights into its fundamental dynamics, while highlighting the universal nature of soliton collapse across novel laser systems.

Keywords: Dissipative pure quartic soliton; Positive fourth-order dispersion; Pulsation; Soliton collapse (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:200:y:2025:i:p1:s0960077925010124

DOI: 10.1016/j.chaos.2025.116999

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