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15 October 2015 High-repetition-rate single-frequency electro-optic Q-switched Nd:YAG laser with feedback controlled prelase
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Proceedings Volume 9671, AOPC 2015: Advances in Laser Technology and Applications; 967106 (2015) https://doi.org/10.1117/12.2197169
Event: Applied Optics and Photonics China (AOPC2015), 2015, Beijing, China
Abstract
A stable high-repetition-rate, high pulse energy and single-frequency electro-optic Q-switched laser has been developed and demonstrated in this paper. The prelase technique has been used in this single-frequency laser. And a PID feedback control electronics is applied to stabilize the prelase. Meanwhile, a two-plate resonant reflector take the place of traditional dielectric output coupler mirror to enhance the single-axial-mode selection. And a Cr:YAG saturable absorber is also inserted in the cavity to improve single-axial-mode selection. Output laser power over 2 W with 10 ns pulse duration has been obtained at a repetition rate of 1 kHz. And the single-axial-mode probability was 100% in one hour without any manual adjustments. The experimental results show that the prelase technique is reliable to attain single-frequency operation.
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Shutao Dai, Fei Shi, Jianhong Huang, Jing Deng, Hui Zheng, Huagang Liu, Hongchun Wu, Wen Weng, Yan Ge, Jinhui Li, and Wenxiong Lin "High-repetition-rate single-frequency electro-optic Q-switched Nd:YAG laser with feedback controlled prelase", Proc. SPIE 9671, AOPC 2015: Advances in Laser Technology and Applications, 967106 (15 October 2015); https://doi.org/10.1117/12.2197169
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