窄线宽光纤激光器在1030nm波段实现3kW近衍射极限输出  

All-fiber narrow linewidth fiber laser achieved 3kW near diffraction limited output at 1030nm

作　　者：楚秋慧 舒强 林宏奂[1] 陶汝茂 颜冬林 王建军[1] 景峰[1] Chu Qiuhui;Shu Qiang;Lin Honghuan;Tao Rumao;Yan Donglin;Wang Jianjun;Jing Feng(Research Center of Laser Fusion,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

出　　处：《强激光与粒子束》2020年第1期21-22,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1030 nm高功率窄线宽光纤激光主振荡功率放大系统,实现了3004 W的最高功率输出,斜率效率69.27%,是目前报道的输出功率最高的1030 nm波段近衍射极限光纤激光器。最高输出功率时,x,y方向的光束质量因子分别为1.169,1.174,3 dB光谱宽度为0.18 nm,放大自发辐射抑制比达到37 dB。In this paper,we demonstrate an all-fiber high-power Yb-doped 1030 nm fiber laser based on master oscillator power amplifier structure.The record output power at 1030 nm up to 3004 W was achieved,along with a slope efficiency of 69.27%,which is the highest output power for 1030 nm near diffraction limited beam quality fiber laser.The beam quality factor is Mx 2=1.169,My 2=1.174,and full width at half maximum is 0.18 nm at maximum power level.The amplified spontaneous emission(ASE)suppression ratio reaches up to 37 dB.

关 键 词：窄线宽激光器 掺镱激光器 单模激光器 放大自发辐射 

分 类 号：O439[机械工程—光学工程]