Research progress and prospect of high power all-fiber coherent beam combination based on fiber combining devices

Yan Yuefang; Tao Rumao; Liu Yu; Li Yuwei; Zhang Haoyu; Chu Qiuhui; Li Min; Shu Qiang; Feng Xi; Huang Wenhui; Jing Feng

doi:10.11884/HPLPB202335.220316

Volume 35 Issue 4

Mar. 2023

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Article Navigation > High Power Laser and Particle Beams > 2023 > 35(4): 041005

Yan Yuefang, Tao Rumao, Liu Yu, et al. Research progress and prospect of high power all-fiber coherent beam combination based on fiber combining devices[J]. High Power Laser and Particle Beams, 2023, 35: 041005. doi: 10.11884/HPLPB202335.220316

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Yan Yuefang, Tao Rumao, Liu Yu, et al. Research progress and prospect of high power all-fiber coherent beam combination based on fiber combining devices[J]. High Power Laser and Particle Beams, 2023, 35: 041005. doi: 10.11884/HPLPB202335.220316

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Research progress and prospect of high power all-fiber coherent beam combination based on fiber combining devices

doi: 10.11884/HPLPB202335.220316

1.
Laser Fusion Research Center, CAEP, Mianyang 621900, China
2.
Key Laboratory of Particle & Radiation Imaging of Ministry of Education, Tsinghua University, Beijing 100084, China)

Received Date: 2022-09-29
Accepted Date: 2022-12-28
Rev Recd Date: 2022-11-29

Available Online: 2023-02-20

Publish Date: 2023-03-30

Abstract

Abstract

The output power of high-power single fiber laser is limited by various physical effects, and it is difficult to achieve a breakthrough in the short term. Coherent beam combination (CBC) of fiber lasers is an effective technical solution to break the power limit of single fiber laser and achieve higher output power. This paper introduces the status quo of CBC research, which mostly uses free-space structure. It is analyzed that the CBC scheme of spatial structure requires complex optical adjustment, and suffers the problem of long-term drifting. The all-fiber coherent beam combination based on all-fiber combining device can enhance the stability and practicability of the combining laser source, and the recent development of CBC in all-fiber format is reviewed in detail. The combining schemes and research status based on fiber coupler, photon lantern, coherent signal combining device and all-fiber device of self-imaging effect are introduced respectively. The main limiting factors and development bottlenecks of different fiber devices are discussed, and the future development prospects are analyzed.
- coherent beam combination,
- high power fiber laser,
- all-fiber,
- beam quality

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References(104)

References

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