Fiber-laser-pumped high-power mid-infrared optical parametric oscillator based on MgO: PPLN crystal

He Yang; Chen Fei; Wan Haohua; Ji Yanhui

doi:10.11884/HPLPB202234.210308

Volume 34 Issue 3

Jan. 2022

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Article Navigation > High Power Laser and Particle Beams > 2022 > 34(3): 031003

He Yang, Chen Fei, Wan Haohua, et al. Fiber-laser-pumped high-power mid-infrared optical parametric oscillator based on MgO: PPLN crystal[J]. High Power Laser and Particle Beams, 2022, 34: 031003. doi: 10.11884/HPLPB202234.210308

Citation:

He Yang, Chen Fei, Wan Haohua, et al. Fiber-laser-pumped high-power mid-infrared optical parametric oscillator based on MgO: PPLN crystal[J]. High Power Laser and Particle Beams, 2022, 34: 031003. doi: 10.11884/HPLPB202234.210308

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Fiber-laser-pumped high-power mid-infrared optical parametric oscillator based on MgO: PPLN crystal

doi: 10.11884/HPLPB202234.210308

He Yang^1
,,
Chen Fei¹,
Wan Haohua^{1, 2},
Ji Yanhui^{1, 2}

1.
State Key Laboratory of Laser Interaction with Matter, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
2.
University of Chinese Academy of Sciences, Beijing 100049, China

Received Date: 2021-07-22
Rev Recd Date: 2021-10-28

Available Online: 2021-09-15

Publish Date: 2022-01-13

Abstract

Abstract

To achieve high-power mid-infrared laser output with high efficiency, the optical parametric oscillator (OPO) based on MgO: PPLN crystal is researched. The pump source is linearly polarized Yb-doped fiber laser (YDFL) with master oscillator power amplifier (MOPA) structure. Experimental results indicate that the YDFL can realize the pulse linearly polarized laser with the highest power of 79.1 W at 1064.1 nm. With the pump laser, the OPO obtains the maximum MIR power of 9.15 W at 3.754 µm by optimizing the curvature radius of output coupler and the pump waist diameter. The corresponding optical-to-optical conversion efficiency is 11.57%. The repetition rate and the pulse width of mid-infrared laser are 300 kHz and ～110 ns, respectively.
- optical parametric oscillator,
- MgO: PPLN crystal,
- Yb-doped fiber laser,
- mid-infrared laser,
- high-power

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References(11)

References

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