中国物理B ›› 2023, Vol. 32 ›› Issue (11): 114209-114209.doi: 10.1088/1674-1056/acc451

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Comprehensive analysis of pure-quartic soliton dynamics in a passively mode-locked fiber laser

Lie Liu(刘列)1, Ying Han(韩颖)1, Jiayu Huo(霍佳雨)1,†, Honglin Wen(文红琳)1, Ge Wu(吴戈)2, and Bo Gao(高博)1   

  1. 1 College of Communication Engineering, Jilin University, Changchun 130012, China;
    2 College of Electronic Science and Engineering, Jilin University, Changchun 130012, China
  • 收稿日期:2023-01-19 修回日期:2023-03-13 接受日期:2023-03-15 出版日期:2023-10-16 发布日期:2023-10-31
  • 通讯作者: Jiayu Huo E-mail:huojy@jlu.edu.cn
  • 基金资助:
    We acknowledge the financial support from Science and Technology Project of the Jilin Provincial Department of Education (Grant No. JJKH20231171KJ).

Comprehensive analysis of pure-quartic soliton dynamics in a passively mode-locked fiber laser

Lie Liu(刘列)1, Ying Han(韩颖)1, Jiayu Huo(霍佳雨)1,†, Honglin Wen(文红琳)1, Ge Wu(吴戈)2, and Bo Gao(高博)1   

  1. 1 College of Communication Engineering, Jilin University, Changchun 130012, China;
    2 College of Electronic Science and Engineering, Jilin University, Changchun 130012, China
  • Received:2023-01-19 Revised:2023-03-13 Accepted:2023-03-15 Online:2023-10-16 Published:2023-10-31
  • Contact: Jiayu Huo E-mail:huojy@jlu.edu.cn
  • Supported by:
    We acknowledge the financial support from Science and Technology Project of the Jilin Provincial Department of Education (Grant No. JJKH20231171KJ).

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摘要： The understanding of soliton dynamics promotes the development of ultrafast laser technology. High-energy pure-quartic solitons (PQSs) have gradually become a hotspot in recent years. Herein, we numerically study the influence of the gain bandwidth, saturation power, small-signal gain, and output coupler on PQS dynamics in passively mode-locked fiber lasers. The results show that the above four parameters can affect PQS dynamics. Pulsating PQSs occur as we alter the other three parameters when the gain bandwidth is 50 nm. Meanwhile, PQSs evolve from pulsating to erupting and then to splitting as the other three parameters are altered when the gain bandwidth is 10 nm, which can be attributed to the existence of the spectral filtering effect and intra-cavity fourth-order dispersion. These findings provide new insights into PQS dynamics in passively mode-locked fiber lasers.

关键词: pure-quartic soliton, pulsating soliton, erupting soliton, passively mode-locked fiber lasers

Abstract: The understanding of soliton dynamics promotes the development of ultrafast laser technology. High-energy pure-quartic solitons (PQSs) have gradually become a hotspot in recent years. Herein, we numerically study the influence of the gain bandwidth, saturation power, small-signal gain, and output coupler on PQS dynamics in passively mode-locked fiber lasers. The results show that the above four parameters can affect PQS dynamics. Pulsating PQSs occur as we alter the other three parameters when the gain bandwidth is 50 nm. Meanwhile, PQSs evolve from pulsating to erupting and then to splitting as the other three parameters are altered when the gain bandwidth is 10 nm, which can be attributed to the existence of the spectral filtering effect and intra-cavity fourth-order dispersion. These findings provide new insights into PQS dynamics in passively mode-locked fiber lasers.

Key words: pure-quartic soliton, pulsating soliton, erupting soliton, passively mode-locked fiber lasers

中图分类号:  (Optical solitons; nonlinear guided waves)

  • 42.65.Tg
42.65.Sf (Dynamics of nonlinear optical systems; optical instabilities, optical chaos and complexity, and optical spatio-temporal dynamics) 42.55.Wd (Fiber lasers) 42.60.Fc (Modulation, tuning, and mode locking)