Experimental research on electro-optical Q-switched pulse Ho: YLF laser

Zhao Lili; Tian Juntao; Li Zhiyong; Wang Hai

doi:10.11884/HPLPB202335.220368

Volume 35 Issue 3

Mar. 2023

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Zhao Lili, Tian Juntao, Li Zhiyong, et al. Experimental research on electro-optical Q-switched pulse Ho: YLF laser[J]. High Power Laser and Particle Beams, 2023, 35: 031005. doi: 10.11884/HPLPB202335.220368

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Zhao Lili, Tian Juntao, Li Zhiyong, et al. Experimental research on electro-optical Q-switched pulse Ho: YLF laser[J]. High Power Laser and Particle Beams, 2023, 35: 031005. doi: 10.11884/HPLPB202335.220368

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Experimental research on electro-optical Q-switched pulse Ho: YLF laser

doi: 10.11884/HPLPB202335.220368

Zhao Lili^{1, 2
,},
Tian Juntao^{1, 2},
Li Zhiyong^{1, 2
,
,},
Wang Hai^{1, 2}

1.
Laser Engineering Technology Research Center, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China
2.
College of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China

Received Date: 2022-11-10
Accepted Date: 2023-01-08
Rev Recd Date: 2023-01-08

Available Online: 2023-02-04

Publish Date: 2023-03-01

Abstract

Abstract

The 2 μm laser with low repetition rate, high peak power and high beam quality has a wide application prospect for nonlinear frequency transformation of mid-infrared and long-infrared optical parameters. The Ho: YLF crystal is pumped by a 42W Tm doped fiber laser with an L-shaped resonator structure. Laser output with wavelength of 2.05 μm, repetition rate of 50 Hz, pulse width of 18 ns , pulse energy of 13.5 mJ, and peak power of 0.75 MW is realized based on the electro-optic Q-switching technology of rubidium titanate phosphate (RTP). And the beam quality M² factors in the horizontal and vertical directions are 1.4 and 1.1, respectively. The Ho: YLF solid state laser is pumped by a fiber laser and has a compact structure, and it will build the foundation for Ho laser with higher pulse energy.
- Tm-fiber laser,
- Ho: YLF,
- electro-optical Q-switched,
- high peak power,
- low repetition rate

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References(15)

References

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