Pulse-jitter reduction in passively Q-switched Nd:YAG/Cr:YAG microchip lasers by injection seeding actively Q-switched laser pulses

Jing Chi; Kai Zhong; Hongzhan Qiao; Yue Sun; Fangjie Li; Yizhe Zheng; Xinqi Li; Yuxin Liu; Degang Xu; Jianquan Yao

doi:10.1117/12.2687190

27 November 2023 Pulse-jitter reduction in passively Q-switched Nd:YAG/Cr:YAG microchip lasers by injection seeding actively Q-switched laser pulses

Jing Chi, Kai Zhong, Hongzhan Qiao, Yue Sun, Fangjie Li, Yizhe Zheng, Xinqi Li, Yuxin Liu, Degang Xu, Jianquan Yao

Author Affiliations +

Proceedings Volume 12760, Advanced Lasers, High-Power Lasers, and Applications XIV; 1276009 (2023) https://doi.org/10.1117/12.2687190
Event: SPIE/COS Photonics Asia, 2023, Beijing, China

Abstract

In order to obtain a passively Q-switched sub-nanosecond microchip laser with a low pulse jitter of less than 10 ns, a scheme of injection-seeding stable nanosecond laser pulses was designed. The pulse timing jitter of the passively Q-switched laser was improved from μs-level to ns-level with the seeding pulse energy of around 70 μJ. Based on experimental measurements, the dynamic process of pulse locking by varying the seeding pulse energy was discussed. The locking threshold affected by the peak pump power and time delay (Δt_Q) between the initial passively Q-switched laser and seeding pulses was also analyzed.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Jing Chi, Kai Zhong, Hongzhan Qiao, Yue Sun, Fangjie Li, Yizhe Zheng, Xinqi Li, Yuxin Liu, Degang Xu, and Jianquan Yao "Pulse-jitter reduction in passively Q-switched Nd:YAG/Cr:YAG microchip lasers by injection seeding actively Q-switched laser pulses", Proc. SPIE 12760, Advanced Lasers, High-Power Lasers, and Applications XIV, 1276009 (27 November 2023); https://doi.org/10.1117/12.2687190

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