Mid‐infrared all‐fiber gain‐switched pulsed laser at 3μm

作     者：Xiaojin Zhang Weiwei Li Jin Li Huiying Xu Zhiping Cai Zhengqian Luo Xiaojin Zhang;Weiwei Li;Jin Li;Huiying Xu;Zhiping Cai;Zhengqian Luo

作者机构：Department of Electronic EngineeringXiamen UniversityXiamen 361005China 

出 版 物：《Opto-Electronic Advances》 (光电进展（英文）)

年 卷 期：2020年第3卷第5期

页      面：1-10页

核心收录：

学科分类：080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0803[工学-光学工程] 

基　　金：National Natural Science Foundation of China(Nos.61475129,11674269) Fundamental Research Funds for the Central Universities(No.20720180057) Natural Science Foundation of Fujian Province for Distinguished Young Scientists(No.2017J06016) 

主　　题：fiber laser mid-infrared gain-switching 

摘      要：Mid-infrared(MIR)fiber pulsed lasers are of tremendous application interest in eye-safe LIDAR,spectroscopy,chemical detection and *** far,these MIR lasers largely required bulk optical elements,complex free-space light alignment and large footprint,precluding compact all-fiber ***,we proposed and demonstrated an all-fiberized structured gain-switched Ho3+-doped ZBLAN fiber laser operating around 2.9μm.A home-made 1146 nm Raman fiber pulsed laser was utilized to pump highly concentrated single-cladding Ho3+-doped ZBLAN fiber with different lengths of 2 m or 0.25 m.A home-made MIR fiber mirror and a perpendicular-polished ZBLAN fiber end construct the all-fiberized MIR *** gain-switched multiple states with a sub-pulse number tuned from 1 to 8 were *** effects of gain fiber length,pump power,pump repetition rate and output coupling ratio on performance of gain-switched pulses were further investigated in *** shortest pulse duration of 283 ns was attained with 10 kHz repetition *** pulsed laser,centered at 2.92μm,had a maximum average output power of 54.2 mW and a slope efficiency of 10.12%.It is,to the best of our knowledge,the first time to demonstrate a mid-infrared gain-switched Ho3+:ZBLAN fiber laser with compact all-fiber structure.