Numerical investigation of dissipative soliton explosion mechanisms in a bidirectional mode-locked fiber laser

IF 2.7 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Optical Fiber Technology Pub Date : 2025-10-11 DOI:10.1016/j.yofte.2025.104440

Min Luo, Wen-Jin Wang, Yong Wei

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Abstract

Soliton explosions, as key phenomena in dissipative systems, attract significant research interest in nonlinear optics owing to their complex evolution. Here, we construct a theoretical model for a bidirectional mode-locked fiber laser to investigate soliton explosions. By tuning intracavity parameters, stable dissipative solitons (DSs) propagating in both clockwise (CW) and counterclockwise (CCW) directions are achieved. By increasing the intracavity gain saturation energy (E_s), the stable DSs evolved into an explosion state, with the bidirectional explosions being largely synchronized. A further increase in E_s drives bidirectional DSs into successive explosion and ultimately chaotic regimes, propelled by high nonlinear effects. Owing to distinct propagation paths, the bidirectional DSs exhibit asynchronous evolution in this regime. Our findings demonstrate that modulating nonlinear effects enables control of soliton explosion behavior in bidirectional lasers, providing both theoretical insights and practical guidance for dual-comb source applications.

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双向锁模光纤激光器耗散孤子爆炸机理的数值研究

孤子爆炸作为耗散系统中的关键现象，其复杂的演化过程引起了非线性光学领域的广泛关注。本文建立了用于研究孤子爆炸的双向锁模光纤激光器的理论模型。通过调整腔内参数，可以获得顺时针和逆时针方向的稳定耗散孤子。通过增加腔内增益饱和能（Es），稳定的DSs进入爆炸状态，双向爆炸基本同步。在高非线性效应的推动下，Es的进一步增加驱动双向DSs进入连续的爆炸和最终的混沌状态。由于具有不同的传播路径，双向DSs在该状态下表现为异步进化。我们的研究结果表明，调制非线性效应可以控制双向激光器中的孤子爆炸行为，为双梳源应用提供了理论见解和实践指导。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Optical Fiber Technology 工程技术-电信学

CiteScore

4.80

自引率

11.10%

发文量

327

审稿时长

63 days

期刊介绍： Innovations in optical fiber technology are revolutionizing world communications. Newly developed fiber amplifiers allow for direct transmission of high-speed signals over transcontinental distances without the need for electronic regeneration. Optical fibers find new applications in data processing. The impact of fiber materials, devices, and systems on communications in the coming decades will create an abundance of primary literature and the need for up-to-date reviews. Optical Fiber Technology: Materials, Devices, and Systems is a new cutting-edge journal designed to fill a need in this rapidly evolving field for speedy publication of regular length papers. Both theoretical and experimental papers on fiber materials, devices, and system performance evaluation and measurements are eligible, with emphasis on practical applications.