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Internal motion within pulsating pure-quartic soliton molecules in a fiber laser

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  • Yang, Song
  • Zhu, Zhiwei
  • Qi, Yaoyao
  • Jin, Lei
  • Li, Li
  • Lin, Xuechun

Abstract

Various striking nonlinear evolution dynamics have been observed in mode-locked fiber lasers owing to the high peak power of the solitons. Herein, we numerically demonstrate the dynamical generation of dispersion-dependent pure-quartic solitons (PQS) molecules in a fiber laser. We discover the evolution from a single-pulse initial condition to different types of pulsating PQS molecules with enhanced net fourth-order dispersion, indicating that the internal motion and energy exchange can be both quasi-periodical and periodical. Furthermore, we reveal that the generation of these two types of pulsating PQS molecules is associated with a gain competition effect between the two sub pulses during mode-locking. Finally, we propose a new method that can achieve the transition between a loose PQS molecule and a tight PQS molecule. Enlightened by the numerical results, we speculate that more internal motion within the PQS molecule will be discovered, which will promote a deep insight into the physical mechanism behind.

Suggested Citation

  • Yang, Song & Zhu, Zhiwei & Qi, Yaoyao & Jin, Lei & Li, Li & Lin, Xuechun, 2023. "Internal motion within pulsating pure-quartic soliton molecules in a fiber laser," Chaos, Solitons & Fractals, Elsevier, vol. 172(C).
    • Handle: RePEc:eee:chsofr:v:172:y:2023:i:c:s0960077923004459
    DOI: 10.1016/j.chaos.2023.113544
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    References listed on IDEAS

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    1. Z. Q. Wang & K. Nithyanandan & A. Coillet & P. Tchofo-Dinda & Ph. Grelu, 2019. "Optical soliton molecular complexes in a passively mode-locked fibre laser," Nature Communications, Nature, vol. 10(1), pages 1-11, December.
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    Cited by:

    1. Yan, Dan & Li, Xingliang & Han, Mengmeng & Zhang, Shumin, 2024. "Partially “invisible” pulsation of asymmetric soliton molecules," Chaos, Solitons & Fractals, Elsevier, vol. 183(C).
    2. Tang, Ziya & Tu, Lisha & Jiang, Yu & Wang, Jiachen & Wang, Jinzhang & Yan, Peiguang & Liu, Xing & Ruan, Shuangchen & Guo, Chunyu, 2024. "Pure-quartic soliton in a birefringence-managed fiber laser," Chaos, Solitons & Fractals, Elsevier, vol. 183(C).
    3. Yang, Song & Zhu, Zhiwei & He, Chaojian & Shi, Yiwen & Yang, Yingying & Lin, Xuechun, 2024. "Collapse of pure-quartic solitons in a mode-locked fiber laser," Chaos, Solitons & Fractals, Elsevier, vol. 180(C).
    4. Zhu, Zhiwei & Yang, Song & He, Chaojian & Lin, Xuechun, 2023. "Vector pure-quartic soliton molecule fiber laser," Chaos, Solitons & Fractals, Elsevier, vol. 175(P1).
    5. Zhang, Xunbo & Zou, Defeng & Liu, Runmin & Lv, Jinqian & Hu, Minglie & Shum, Perry Ping & Song, Youjian, 2024. "From breather solitons to chaos in an ultrafast laser: The scenario of cascading short and long-period pulsations," Chaos, Solitons & Fractals, Elsevier, vol. 182(C).

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