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

作　　者：刘列 韩颖 霍佳雨 文红琳 吴戈 高博 Lie Liu;Ying Han;Jiayu Huo;Honglin Wen;Ge Wu;Bo Gao(College of Communication Engineering,Jilin University,Changchun 130012,China;College of Electronic Science and Engineering,Jilin University,Changchun 130012,China)

机构地区：[1]College of Communication Engineering,Jilin University,Changchun 130012,China [2]College of Electronic Science and Engineering,Jilin University,Changchun 130012,China

出　　处：《Chinese Physics B》2023年第11期477-483,共7页中国物理B（英文版）

基　　金：the financial support from Science and Technology Project of the Jilin Provincial Department of Education (Grant No. JJKH20231171KJ)。

摘　　要：The understanding of soliton dynamics promotes the development of ultrafast laser technology. High-energy purequartic 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 

分 类 号：TN248[电子电信—物理电子学]