100 W-level single-frequency fiber amplifier with all-fiber linear polarization

Zhang Kun; Fang Yitao; Yu Yang; Li Yao; Song Kuiyan; Zhang Liming; Zhang Dayong; Zhao Hong

doi:10.11884/HPLPB202234.210281

Volume 34 Issue 3

Jan. 2022

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Article Navigation > High Power Laser and Particle Beams > 2022 > 34(3): 031001

Zhang Kun, Fang Yitao, Yu Yang, et al. 100 W-level single-frequency fiber amplifier with all-fiber linear polarization[J]. High Power Laser and Particle Beams, 2022, 34: 031001. doi: 10.11884/HPLPB202234.210281

Citation:

Zhang Kun, Fang Yitao, Yu Yang, et al. 100 W-level single-frequency fiber amplifier with all-fiber linear polarization[J]. High Power Laser and Particle Beams, 2022, 34: 031001. doi: 10.11884/HPLPB202234.210281

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100 W-level single-frequency fiber amplifier with all-fiber linear polarization

doi: 10.11884/HPLPB202234.210281

Key Laboratory of Solid State Laser, the 11th Research Institute of China Electronics Technology Group, Beijing 100015, China

Received Date: 2021-07-13
Rev Recd Date: 2022-02-24

Available Online: 2022-02-26

Publish Date: 2022-01-13

Abstract

Abstract

An all-fiber 1064 mm linearly polarized single-frequency fiber laser based on the master oscillator-power amplifier structure is reported. The seed was a single-frequency fiber laser with a line width of about 3 kHz. The seed laser with an output power of 50 mW was amplified by two-stage Yb-doped polarization-maintaining double-cladding (the core diameters are 10 μm and 20 μm respectively) fiber and a stage chirally coupled core gain fiber, and the high power single frequency fiber laser output with an output power of 138 W, the beam quality M²≤1.1 and the polarization extinction ratio better than 18 dB was finally obtained. At the pulse modulation mode, a linearly-polarized single-frequency fiber laser output with a peak power of 465 W and a pulse duration of about 500 μs was obtained.
- single frequency,
- fiber laser,
- chiral coupled core fiber,
- all fiber

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References(10)

References

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