强激光与粒子束, 2020, 32 (10): 101001, 网络出版: 2020-11-11
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
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。
Abstract
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.
楚秋慧, 廖若宇, 舒强, 陶汝茂, 颜冬林, 李峰云, 林宏奂, 温静, 王建军, 景峰. 22 GHz窄线宽全光纤激光器实现2.62 kW近衍射极限输出[J]. 强激光与粒子束, 2020, 32(10): 101001. Qiuhui Chu, Ruoyu Liao, Qiang Shu, Rumao Tao, Donglin Yan, Fengyun Li, Honghuan Lin, Jing Wen, Jianjun Wang, Feng Jing. 22 GHz linewidth all-fiber laser achieved 2.62 kW near diffraction-limited output[J]. High Power Laser and Particle Beams, 2020, 32(10): 101001.
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