17.4 kW (1+1) long distance side-pumped laser fiber

Gao Cong; Liu Nian; Li Fengyun; Liu Yu; Dai Jiangyun; Shen Changle; He Hongle; Lü Jiakun; Li Fang; Zhang Lihua; Li Yuwei; Jiang Lei; Guo Chao; Tao Rumao; Ke Weiwei; Zhang Haoyu; Wang Jianjun; Lin Honghuan; Jing Feng

doi:10.11884/HPLPB202234.220070

Volume 34 Issue 5

Apr. 2022

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Article Navigation > High Power Laser and Particle Beams > 2022 > 34(5): 051002

Gao Cong, Liu Nian, Li Fengyun, et al. 17.4 kW (1+1) long distance side-pumped laser fiber[J]. High Power Laser and Particle Beams, 2022, 34: 051002. doi: 10.11884/HPLPB202234.220070

Citation:

Gao Cong, Liu Nian, Li Fengyun, et al. 17.4 kW (1+1) long distance side-pumped laser fiber[J]. High Power Laser and Particle Beams, 2022, 34: 051002. doi: 10.11884/HPLPB202234.220070

Gao Cong, Liu Nian, Li Fengyun, et al. 17.4 kW (1+1) long distance side-pumped laser fiber[J]. High Power Laser and Particle Beams, 2022, 34: 051002. doi: 10.11884/HPLPB202234.220070

Citation:

Gao Cong, Liu Nian, Li Fengyun, et al. 17.4 kW (1+1) long distance side-pumped laser fiber[J]. High Power Laser and Particle Beams, 2022, 34: 051002. doi: 10.11884/HPLPB202234.220070

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17.4 kW (1+1) long distance side-pumped laser fiber

doi: 10.11884/HPLPB202234.220070

1.
Laser Fusion Research Center, CAEP, Mianyang 621900, China
2.
Institute of Applied Physics and Computational Mathematics, Beijing 100094, China

Received Date: 2022-03-14
Rev Recd Date: 2022-04-05

Available Online: 2022-04-13

Publish Date: 2022-05-15

Abstract

Abstract

The long distance side-pumped laser fiber (LDSPF) is characterized by its ability for high power pump power coupling, heat management and nonlinear effect suppressing, which is quite potential for high power fiber laser application.A (1+1) LDSPF for tandem pumping was fabricated and tested. Pumped by 1018 nm fiber lasers, 17.4 kW laser output at 1080 nm with a slope efficiency of 82.1% was achieved with this fiber amplifier with backward pumping technique. Linewidth at 3 dB of the laser is 1.3 nm and the ratio of signal light to SRS is around 37.8 dB at the maximum power. The results demonstrate great potential of LDSPF as power amplifier for tens of kilowatts fiber laser.
- fiber laser,
- fiber amplifier,
- tandem pump,
- side-pump,
- laser fiber

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References(9)

References

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