Output of 3.08 kW narrow linewidth linearly polarized all-fiber laser based on a simple MOPA structure

Wang Yanshan; Wang Jue; Chang Zhe; Peng Wanjing; Sun Yinhong; Ma Yi; Gao Qingsong; Zhang Kai; Tang Chun

doi:10.11884/HPLPB202032.200004

Volume 32 Issue 1

Dec. 2019

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Wang Yanshan, Wang Jue, Chang Zhe, et al. Output of 3.08 kW narrow linewidth linearly polarized all-fiber laser based on a simple MOPA structure[J]. High Power Laser and Particle Beams, 2020, 32: 011006. doi: 10.11884/HPLPB202032.200004

Citation:

Wang Yanshan, Wang Jue, Chang Zhe, et al. Output of 3.08 kW narrow linewidth linearly polarized all-fiber laser based on a simple MOPA structure[J]. High Power Laser and Particle Beams, 2020, 32: 011006. doi: 10.11884/HPLPB202032.200004

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Output of 3.08 kW narrow linewidth linearly polarized all-fiber laser based on a simple MOPA structure

doi: 10.11884/HPLPB202032.200004

Wang Yanshan^{1, 2, 3
,},
Wang Jue^{1, 2},
Chang Zhe^{1, 2, 3},
Peng Wanjing^{1, 2},
Sun Yinhong^{1, 2
,},
Ma Yi^{1, 2
,},
Gao Qingsong^{1, 2},
Zhang Kai^{1, 2},
Tang Chun^{1, 2}

1.
Institute of Applied Electronics, CAEP, Mianyang 621900, China
2.
The Key Laboratory of Science and Technology on High Energy Laser, CAEP, Mianyang 621900, China
3.
Graduate School of CAEP, Beijing 100088, China

Received Date: 2019-11-22
Rev Recd Date: 2019-12-28
Publish Date: 2019-12-26

Abstract

Abstract

We demonstrated a narrow linewidth linearly polarized all-fiber laser operating at maximum output power of 3.08 kW with a 3 dB linewidth of 0.2 nm based on a simple master oscillator power amplifier (MOPA) structure. The polarization extinction ratio (PER) is about 94% and the M ² is about 1.4 along the whole power scaling process. This is the first demonstration of a 3 kW linearly polarized all-fiber laser output. Compared with the narrow linewidth fiber amplifier based on phase modulation, this system can achieve a nearly same linewidth. Meanwhile, it has the characteristics of high stimulated Brillouin scattering (SBS) threshold, simple structure, and low cost, etc.
- all-fiber laser,
- master oscillator power amplifier,
- narrow linewidth,
- linear polarization

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References(8)

References

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