Research on light intensity distribution of end-pumped 1064nm Q-switched laser

Cai-li Wang; San-zhao Wang; Shi-yong Xie; Pu-guang Song; Xian Zhang; Yue-chong Feng; Juan Liu; Hao-yang Yu

doi:10.1117/12.2585022

12 March 2021 Research on light intensity distribution of end-pumped 1064nm Q-switched laser

Cai-li Wang, San-zhao Wang, Shi-yong Xie, Pu-guang Song, Xian Zhang, Yue-chong Feng, Juan Liu, Hao-yang Yu

Proceedings Volume 11763, Seventh Symposium on Novel Photoelectronic Detection Technology and Applications; 1176305 (2021) https://doi.org/10.1117/12.2585022
Event: Seventh Symposium on Novel Photoelectronic Detection Technology and Application 2020, 2020, Kunming, China

Abstract

High energy 1064 nm Q-switched laser output is obtained by LD vertical array end pumping Nd:YAG. For different divergence angles of fast axis and slow axis of LD array, aspheric lens are used for beam shaping of LD array. The results show that light intensity distribution of output laser is very sensitive to the structure of the shaping system, which can be controlled by adjusting the spatial position of pumping, such as the distance between the aspheric lens pair, the distance between the front end of the crystal rod and the aspheric lens, and the approximate Gaussian beam was obtained without damage. When the distance between the aspheric lens pair is 24mm, the distance between the crystal rod and aspheric lens is 4mm, a 1064 nm Q-switched laser with single pulse energy of 80.8 mJ and pulse width of 10 ns was obtained

Citation Download Citation

Cai-li Wang, San-zhao Wang, Shi-yong Xie, Pu-guang Song, Xian Zhang, Yue-chong Feng, Juan Liu, and Hao-yang Yu "Research on light intensity distribution of end-pumped 1064nm Q-switched laser", Proc. SPIE 11763, Seventh Symposium on Novel Photoelectronic Detection Technology and Applications, 1176305 (12 March 2021); https://doi.org/10.1117/12.2585022

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