Optimum support scheme with fringe moment on the large clear aperture of transmitting mirror

Zhiyuan Ren; Zhigang Liu; Jianqiang Zhu

doi:10.1117/12.2605721

1 November 2021 Optimum support scheme with fringe moment on the large clear aperture of transmitting mirror

Zhiyuan Ren, Zhigang Liu, Jianqiang Zhu

Proceedings Volume 12057, Twelfth International Conference on Information Optics and Photonics; 120571Z (2021) https://doi.org/10.1117/12.2605721
Event: Twelfth International Conference on Information Optics and Photonics, 2021, Xi'an, China

Abstract

Motivated by the need to reduce the deformation of the large clear aperture transmitting mirror in the high power laser facilities (SG-II), a novel support scheme is presented for transferring maximum deformation area from the center of clear aperture to the edge of a transmitting mirror. The optimum preload force applied to the small flexure deformation on the edge is determined based on elasticity theory and finite element analysis. Experimental results show that the preload force applied to the edge of the mirror can offset the deformation of the aperture caused by gravity. The Peak to Valley (PV) value and Root-Mean-Square (RMS) value of the clear aperture of optics reduced by 71.9% and 82.7%, respectively, when preload force is applies, compared to their values without any preload force. The proposed method would facilitate the development of new support schemes for large aperture mirrors, especially transmitting mirror.

Citation Download Citation

Zhiyuan Ren, Zhigang Liu, and Jianqiang Zhu "Optimum support scheme with fringe moment on the large clear aperture of transmitting mirror", Proc. SPIE 12057, Twelfth International Conference on Information Optics and Photonics, 120571Z (1 November 2021); https://doi.org/10.1117/12.2605721

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