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

Chu Qiuhui; Liao Ruoyu; Shu Qiang; Tao Rumao; Yan Donglin; Li Fengyun; Lin Honghuan; Wen Jing; Wang Jianjun; Jing Feng

doi:10.11884/HPLPB202032.200143

Volume 32 Issue 10

Sep. 2020

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Chu Qiuhui, Liao Ruoyu, Shu Qiang, et al. 22 GHz linewidth all-fiber laser achieved 2.62 kW near diffraction-limited output[J]. High Power Laser and Particle Beams, 2020, 32: 101001. doi: 10.11884/HPLPB202032.200143

Citation:

Chu Qiuhui, Liao Ruoyu, Shu Qiang, et al. 22 GHz linewidth all-fiber laser achieved 2.62 kW near diffraction-limited output[J]. High Power Laser and Particle Beams, 2020, 32: 101001. doi: 10.11884/HPLPB202032.200143

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

doi: 10.11884/HPLPB202032.200143

Laser Fusion Research Center, CAEP, P. O. Box 919-988, Mianyang 621900, China

Received Date: 2020-05-26
Rev Recd Date: 2020-09-28
Publish Date: 2020-09-29

Abstract

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 M_x²＝1.273, M_y²＝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.
- narrow linewidth fiber laser,
- ytterbium doped fiber laser,
- single mode fiber laser

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References(7)

References

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