High Power Laser and Particle Beams, Volume. 34, Issue 3, 031003(2022)

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

Yang He1, Fei Chen1, Haohua Wan1,2, and Yanhui Ji1,2
Author Affiliations
  • 1State Key Laboratory of Laser Interaction with Matter, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
  • 2University of Chinese Academy of Sciences, Beijing 100049, China
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    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.

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    Yang He, Fei Chen, Haohua Wan, Yanhui Ji. Fiber-laser-pumped high-power mid-infrared optical parametric oscillator based on MgO: PPLN crystal[J]. High Power Laser and Particle Beams, 2022, 34(3): 031003

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    Paper Information

    Category: Laser Decices

    Received: Jul. 22, 2021

    Accepted: --

    Published Online: Mar. 28, 2022

    The Author Email:

    DOI:10.11884/HPLPB202234.210308

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