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Proceedings Paper

Aberration measurement of focal mirror by the phase shift in high-power CO2 laser processing
Author(s): Zhiyong Wang; Hong Chen; Tiechuan Zuo
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Paper Abstract

In this paper, a new method to measure the aberration of focal mirror under high-power CO2 laser beam irradiation by phase shift is proposed. The aberration caused by distortion of focal mirror changes the phase shift of laser beam. Therefore, the transverse intensity distribution (TID) on focus of the focal mirror under the high-power CO2 laser beam irradiation is different from the ideal distribution. Furthermore, the changes of phase shift can be solved by comparing this difference. As well as the aberration can be obtained.

Paper Details

Date Published: 9 October 2000
PDF: 5 pages
Proc. SPIE 4221, Optical Measurement and Nondestructive Testing: Techniques and Applications, (9 October 2000); doi: 10.1117/12.402559
Show Author Affiliations
Zhiyong Wang, Beijing Polytechnic Univ. (China)
Hong Chen, Beijing Polytechnic Univ. (China)
Tiechuan Zuo, Beijing Polytechnic Univ. (China)

Published in SPIE Proceedings Vol. 4221:
Optical Measurement and Nondestructive Testing: Techniques and Applications
FeiJun Song; Frank Chen; Michael Y.Y. Hung; H.M. Shang, Editor(s)

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