High Power Laser Science and Engineering, Volume. 12, Issue 2, 02000e20(2024)

Characteristics and suppression of beam distortion in a high repetition rate nanosecond stimulated Brillouin scattering phase conjugation mirror Editors' Pick

Yifu Chen1,2,3, Bowen Tan4, Duo Jin2,3, Bin Chen2,3, Zhenxu Bai2,3、*, Kun Wang4, Yulei Wang2,3, and Zhiwei Lü1,2,3
Author Affiliations
  • 1School of Astronautics, Harbin Institute of Technology, Harbin, China
  • 2Center for Advanced Laser Technology, Hebei University of Technology, Tianjin, China
  • 3Hebei Key Laboratory of Advanced Laser Technology and Equipment, Tianjin, China
  • 4School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin, China
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    Figures & Tables(11)
    Experimental structure of the single-cell SBS-PCM. (a) Experimental setup. ISO, optical isolator; HR, highly reflective mirror; CCD, charge-coupled device-based beam quality analyzer; λ/2, half-wave plate. (b) Pump light distribution.
    Temperature field and flow field at different repetition rates.
    Maximum temperature and flow velocity. (a) Different repetition rates in FC-72. (b) Different media at 250 Hz.
    Beam profile at different repetition rates. (a) Beam profile. (b) Fitting in the horizontal direction. (c) Fitting in the vertical direction.
    RSS of Gaussian fitting: (a) in the horizontal/vertical direction; (b) positive/negative side in the vertical direction.
    Beam profile at different pulse energies: (a) beam profile; (b) fitting in the horizontal direction; (c) fitting in the vertical direction.
    RSSs at different pump energies.
    Gaussian fitting of different media: (a) horizontal direction; (b) vertical direction; (c) RSS of the fitting.
    • Table 2. Beam profile at different repetition rates compared with the medium.

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      Table 2. Beam profile at different repetition rates compared with the medium.

    • Table 3. Thermal convection velocity and temperature at different cell diameters.

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      Table 3. Thermal convection velocity and temperature at different cell diameters.

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    Yifu Chen, Bowen Tan, Duo Jin, Bin Chen, Zhenxu Bai, Kun Wang, Yulei Wang, Zhiwei Lü. Characteristics and suppression of beam distortion in a high repetition rate nanosecond stimulated Brillouin scattering phase conjugation mirror[J]. High Power Laser Science and Engineering, 2024, 12(2): 02000e20

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    Paper Information

    Category: Research Articles

    Received: Nov. 3, 2023

    Accepted: Jan. 26, 2024

    Published Online: May. 7, 2024

    The Author Email: Zhenxu Bai (baizhenxu@hotmail.com)

    DOI:10.1017/hpl.2024.4

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