On-line measurement of wavefront aberration on optics caused by intense lasers

Zuodong Xu; Fuhua Liu; Chang Jiang; Fei Wang; Bibo Shao; Yunfeng Ji

doi:10.1117/12.2180750

4 May 2015 On-line measurement of wavefront aberration on optics caused by intense lasers

Zuodong Xu, Fuhua Liu, Chang Jiang, Fei Wang, Bibo Shao, Yunfeng Ji

Author Affiliations +

Proceedings Volume 9543, Third International Symposium on Laser Interaction with Matter; 954325 (2015) https://doi.org/10.1117/12.2180750
Event: Third International Symposium on Laser Interaction with Matter, 2014, Jiangsu, China

Abstract

It is presented that the thermally induced transmitted wavefront aberration of a high-reflectivity sampling mirror was detected on line using a Shack-Hartmann wavefront sensor (SHWS) in the beam quality measurement of an intense laser. As a result of heat absorption in the sampling mirror with active aperture of 120 mm, thermally induced wavefront aberration emerged when the mirror was exposed to high laser intensity of several kilowatts per centimeter square. Time-dependent wavefront aberration curves were acquired, and the transmitted wavefronts were reconstructed based on Zernike mode reconstruction theory. The experimental results indicate that the magnitude of the dynamic transmitted wavefront aberration increases gradually with the growing heat deposit during laser irradiation. The maximum of wavefront aberration observed after irradiation for 5 seconds reaches 0.11 μm of root-mean-square value. After further analysis, the experimental results of dynamic aberration can be applied in modifications for the measurement results of intense laser beam quality or tests for the thermal stability of optics used in the intense laser systems.

Citation Download Citation

Zuodong Xu, Fuhua Liu, Chang Jiang, Fei Wang, Bibo Shao, and Yunfeng Ji "On-line measurement of wavefront aberration on optics caused by intense lasers", Proc. SPIE 9543, Third International Symposium on Laser Interaction with Matter, 954325 (4 May 2015); https://doi.org/10.1117/12.2180750

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