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," High Power Laser Sci. Eng. 12, 02000e20 (2024)
- High Power Laser Science and Engineering
- Vol. 12, Issue 2, 02000e20 (2024)
Fig. 1. 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.
Fig. 2. Temperature field and flow field at different repetition rates.
Fig. 3. Maximum temperature and flow velocity. (a) Different repetition rates in FC-72. (b) Different media at 250 Hz.
Fig. 4. Beam profile at different repetition rates. (a) Beam profile. (b) Fitting in the horizontal direction. (c) Fitting in the vertical direction.
Fig. 5. RSS of Gaussian fitting: (a) in the horizontal/vertical direction; (b) positive/negative side in the vertical direction.
Fig. 6. Beam profile at different pulse energies: (a) beam profile; (b) fitting in the horizontal direction; (c) fitting in the vertical direction.
Fig. 7. RSSs at different pump energies.
Fig. 8. Gaussian fitting of different media: (a) horizontal direction; (b) vertical direction; (c) RSS of the fitting.
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Table 1. Parameters of the SBS medium.
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Table 2. Beam profile at different repetition rates compared with the medium.
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Table 3. Thermal convection velocity and temperature at different cell diameters.
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