Performance improvement method for large aperture frequency conversion crystal

Zheng Zhang; Weifeng Du; Dongya Chu; Lang Ye; Hai Zhou; Hui Wang

doi:10.1117/12.2532040

17 May 2019 Performance improvement method for large aperture frequency conversion crystal

Zheng Zhang, Weifeng Du, Dongya Chu, Lang Ye, Hai Zhou, Hui Wang

Proceedings Volume 11170, 14th National Conference on Laser Technology and Optoelectronics (LTO 2019); 111700G (2019) https://doi.org/10.1117/12.2532040
Event: Fourteenth National Conference on Laser Technology and Optoelectronics, 2019, Shanghai, China

Abstract

In huge-scale high peak power laser facility, the frequency conversion unit is responsible for the conversion of fundamental infrared wave at 1053nm into ultraviolet wave at 351nm. In this paper, the mechanism of service performance degradation of frequency doubling crystal is revealed by combining field experiments and numerical simulations. Moreover, we propose a flexure support method that can effectively reduce crystal surface distortion. Further, an experiment platform for offline mounting of frequency conversion crystal is built, and the mechanical and optical characteristics are verified by the experimental results. Finally, online verification is carried out in China’s high peak power laser facility. The results show that the proposed mounting method can significantly modify the crystal surface figure, improve its online performance and increase the highest efficient output power of high peak power laser facility.

Citation Download Citation

Zheng Zhang, Weifeng Du, Dongya Chu, Lang Ye, Hai Zhou, and Hui Wang " Performance improvement method for large aperture frequency conversion crystal", Proc. SPIE 11170, 14th National Conference on Laser Technology and Optoelectronics (LTO 2019), 111700G (17 May 2019); https://doi.org/10.1117/12.2532040

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