VCSEL end-pumped 1319nm Nd:YAG Q-switched laser

Yanghua Liu; Zhuang Jin; Shanshan Cao; Menghua Jiang; Youqiang Liu; Wenbin Qin; Yinhua Cao; Zhiyong Wang

doi:10.1117/12.2667918

21 March 2023 VCSEL end-pumped 1319nm Nd:YAG Q-switched laser

Yanghua Liu, Zhuang Jin, Shanshan Cao, Menghua Jiang, Youqiang Liu, Wenbin Qin, Yinhua Cao, Zhiyong Wang

Proceedings Volume 12595, Advanced Fiber Laser Conference (AFL2022); 1259513 (2023) https://doi.org/10.1117/12.2667918
Event: Advanced Fiber Laser Conference (AFL2022), 2022, Changsha, China

Abstract

1319nm lasers have important applications in optical communication, LIDAR, laser display, laser medical, etc. In applications such as LIDAR, reliable operation over a wide temperature range is a key indicator of the laser. Vertical cavity surface emitting lasers are new pump sources for all-solid-state lasers because of their narrow linewidth, small temperature drift coefficient, and two-dimensional expansion. In this paper, we report an 808nm VCSEL end-pumped Nd:YAG 1319nm Q-switched laser that can operate stably over a wide temperature range, The whole laser is dissipated by natural conduction cooling, the VCSEL array is collimated by a two-dimensional micro lens array for beam shaping, and Nd:YAG is used as the dielectric crystal to obtain a 1319nm laser output with a maximum single pulse energy of 2.8mJ and a beam quality of M²⪅1.5 by passive Q-switching.

Citation Download Citation

Yanghua Liu, Zhuang Jin, Shanshan Cao, Menghua Jiang, Youqiang Liu, Wenbin Qin, Yinhua Cao, and Zhiyong Wang "VCSEL end-pumped 1319nm Nd:YAG Q-switched laser", Proc. SPIE 12595, Advanced Fiber Laser Conference (AFL2022), 1259513 (21 March 2023); https://doi.org/10.1117/12.2667918

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KEYWORDS

Vertical cavity surface emitting lasers

Nd:YAG lasers

Crystals

Laser crystals

Microlens array

Collimation

Q switched lasers

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