Significant enhancement of multiple resonant sidebands in a soliton fiber laser  

作　　者：TIANQI ZHANG FANCHAO MENG QI YAN CHUANZE ZHANG ZHIXU JIA WEIPING QIN GUANSHI QIN HUAILIANG XU 

机构地区：[1]State Key Laboratory of Integrated Optoelectronics,College of Electronic Science and Engineering,Jilin University,Changchun 130012,China

出　　处：《Photonics Research》2023年第11期1847-1860,共14页光子学研究（英文版）

基　　金：National Natural Science Foundation of China(11774132,11904121,61827821,62027822,62075082,62090063,62205121,62235014,U20A20210,U22A2085);The Opened Fund of the State Key Laboratory of Integrated Optoelectronics。

摘　　要：Resonant sidebands in soliton fiber lasers have garnered substantial interest in recent years due to their crucial role in understanding soliton propagation and interaction dynamics.However,most previous studies and applications were restricted to focusing on only the first few low-order resonant sidebands because higher-order sidebands usually decay exponentially as their wavelengths shift far away from the soliton center and are negligibly weak.Here we report numerically and experimentally significant enhancement of multiple resonant sidebands in a soliton fiber laser mode-locked by a nonlinear polarization evolution mechanism.The birefringence and the gain profile of the laser cavity were shown to be critical for this phenomenon.Multiple intense resonant sidebands were generated whose maximum intensity was more than 30 d B higher than that of the soliton,which is the highest yet reported,to our knowledge.To accurately predict the wavelengths of all high-order resonant sidebands,an explicit formula was derived by taking the third-order dispersion effect into account.The temporal features of multiple orders of resonant sidebands were characterized,which all exhibit exponentially decaying leading edges.This study provides insight into understanding the properties of high-order resonant sidebands in a soliton laser and opens possibilities for constructing multi-wavelength laser sources.

关 键 词：fiber POLARIZATION SOLITON 

分 类 号：TN248[电子电信—物理电子学]