Unveiling impacts of PMD on spectral modulations in PM-fiber-based ultrafast amplifiers  

作　　者：Shang Wang Guanguang Gao Zhenhua Cong Zhaojun Liu Zhigang Zhao 王上;高贯光;丛振华;刘兆军;赵智刚(Key Laboratory of Laser&Infrared System,Ministry of Education,Shandong University,Qingdao 266237,China;School of Information Science and Engineering,Shandong University,Qingdao 266237,China;Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China;Shandong Provincial Key Laboratory of Laser Technology and Application,Shandong University,Qingdao 266237,China)

机构地区：[1]Key Laboratory of Laser&Infrared System,Ministry of Education,Shandong University,Qingdao 266237,China [2]School of Information Science and Engineering,Shandong University,Qingdao 266237,China [3]Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China [4]Shandong Provincial Key Laboratory of Laser Technology and Application,Shandong University,Qingdao 266237,China

出　　处：《Chinese Optics Letters》2024年第12期57-62,共6页中国光学快报(英文版)

基　　金：supported by the National Natural Science Foundation of China(Nos.62375156,62075116,62075117);the Foundation of Qilu Young Scholar from Shandong University。

摘　　要：In this work,polarization mode dispersion(PMD)in polarization-maintaining(PM)fibers,to the best of our knowledge,is first proposed and experimentally proved to be responsible for severe spectral modulations in ultrafast PM fiber amplifiers,the introduction of which can give reasonable explanation for the dense spectral ripples imposed on the spectra of amplified lasers from the commonly used all-PM-fiber or hybrid“PM-fiber+bulk crystal”amplifiers,including both high-power amplifiers with remarkable nonlinear effects(self-phase modulation,SPM)and even low-power amplifiers with negligible nonlinear effects.

关 键 词：spectral modulation polarization mode dispersion self-phase modulation polarization-maintaining fibers 

分 类 号：TN248[电子电信—物理电子学] TN722