22 GHz窄线宽全光纤激光器实现2.62 kW近衍射极限输出  

22 GHz linewidth all-fiber laser achieved 2.62 kW near diffraction-limited output

作　　者：楚秋慧 廖若宇 舒强 陶汝茂 颜冬林 李峰云 林宏奂[1] 温静[1] 王建军[1] 景峰[1] Chu Qiuhui;Liao Ruoyu;Shu Qiang;Tao Rumao;Yan Donglin;Li Fengyun;Lin Honghuan;Wen Jing;Wang Jianjun;Jing Feng(Laser Fusion Research Center,CAEP,P.O.Box 919-988,Mianyang 621900,China)

机构地区：[1]中国工程物理研究院激光聚变研究中心,四川绵阳621900

出　　处：《强激光与粒子束》2020年第10期67-68,共2页High Power Laser and Particle Beams

基　　金：国家重点研发计划项目(2017YFB1104401)。

摘　　要：基于大模场面积掺镱光纤搭建了全光纤1064 nm高功率窄线宽光纤激光主振荡功率放大系统,实现了2625 W的最高功率输出,斜率效率76%。最高输出功率时,光束质量为Mx2=1.273,My2=1.255,3 dB光谱宽度为21.7 GHz,这是目前全光纤激光器在该光谱线宽下实现的最高输出功率。This paper demonstrates an all-fiber high-power Yb-doped 1064 nm fiber laser based on master oscillator power amplifier structure.The record output power up to 2625 W was achieved,along with a slope efficiency of 76%.The beam quality factor is Mx2=1.273,My2=1.255,and full width at half maximum is 21.7 GHz at maximum power level.The fiber laser has the highest output power of all-fiber lasers with 22 GHz linewidth.

关 键 词：窄线宽激光器 掺镱激光器 单模激光器 

分 类 号：O439[机械工程—光学工程]