High Power Laser and Particle Beams, Volume. 35, Issue 3, 031005(2023)
Experimental research on electro-optical Q-switched pulse Ho: YLF laser
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.
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Lili Zhao, Juntao Tian, Zhiyong Li, Hai Wang. Experimental research on electro-optical Q-switched pulse Ho: YLF laser[J]. High Power Laser and Particle Beams, 2023, 35(3): 031005
Category: High Power Laser Physics and Technology
Received: Nov. 10, 2022
Accepted: Jan. 8, 2023
Published Online: Mar. 9, 2023
The Author Email: Li Zhiyong (zhiyongli@aircas.ac.cn)