Theoretical analysis and experimental research of LD array beam shaping for end-pumped 1064nm Q-switched laser

Cai-li Wang; Shi-yong Xie; Yu Shi; Hua Cai; Jiao Lian; Tie-zhu Bo; Chang Liu; Jing Ma; Shuai-qi Li

doi:10.1117/12.2666636

4 April 2023 Theoretical analysis and experimental research of LD array beam shaping for end-pumped 1064nm Q-switched laser

Cai-li Wang, Shi-yong Xie, Yu Shi, Hua Cai, Jiao Lian, Tie-zhu Bo, Chang Liu, Jing Ma, Shuai-qi Li

Author Affiliations +

Proceedings Volume 12617, Ninth Symposium on Novel Photoelectronic Detection Technology and Applications; 126175Z (2023) https://doi.org/10.1117/12.2666636
Event: 9th Symposium on Novel Photoelectronic Detection Technology and Applications (NDTA 2022), 2022, Hefei, China

Abstract

High energy 1064 nmQ-switched laser output is obtained by LD vertical array end pumpingNd:YAG. For different divergence angles of fast axis and slow axis of LD array, aspheric lens and the glass rodis 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 beam shaping system, which can be controlled by adjusting the spatial position of pumping, such as the distance between the aspheric lens and the face of the glass rod, and the approximate Gaussian beam was obtained without damage. When the distance between the aspheric lens pair and the face of the glass rod is 16mm, a 1064 nm Q-switched laser with single pulse energy of 60.4 mJ under the pump energy of 489 mJ, corresponding to optical conversion efficiency of 12.4%.

Citation Download Citation

Cai-li Wang, Shi-yong Xie, Yu Shi, Hua Cai, Jiao Lian, Tie-zhu Bo, Chang Liu, Jing Ma, and Shuai-qi Li "Theoretical analysis and experimental research of LD array beam shaping for end-pumped 1064nm Q-switched laser", Proc. SPIE 12617, Ninth Symposium on Novel Photoelectronic Detection Technology and Applications, 126175Z (4 April 2023); https://doi.org/10.1117/12.2666636

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available