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Proceedings Paper

Wavefront sensing technique with a radial shearing interferometry applied to an adaptive optic system
Author(s): Yongying Yang; Yuanbiao Lu; Yongmo Zhuo; Jian Chen; Xiaoming Zhang; Bo Chen
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Paper Abstract

The interferometer can measures accurately a static or dynamic wavefront . It can be done using a system of circular radial shearing interference with spatial phase modulated. Because the method only needs one frame interferogram so that can rejected the effect of vibrations and noises. The wavefront errors measured make adaptive optic system (AOS) that contain a deformable mirror correct the wavefront aberrations again. This paper described a system of radial shearing interference with spatial phase modulation. It is based on the Fourier transform method that the analysis and data processing of the interference fringe pattern with suitable linear carrier. An algorithm of shearing wavefront reconstructed can obtain the original wavefront. The system of diagnostics can check the operation of the AOS and quantify laser beam quality. Finally, the interference experiment and data processing results have been given in this paper.

Paper Details

Date Published: 5 September 2002
PDF: 8 pages
Proc. SPIE 4926, Adaptive Optics and Applications II, (5 September 2002); doi: 10.1117/12.481682
Show Author Affiliations
Yongying Yang, Zhejian Univ. (China)
Yuanbiao Lu, Zhejian Univ. (China)
Yongmo Zhuo, Zhejian Univ. (China)
Jian Chen, Zhejian Univ. (China)
Xiaoming Zhang, Institute of Engineering Physics (China)
Bo Chen, Institute of Engineering Physics (China)

Published in SPIE Proceedings Vol. 4926:
Adaptive Optics and Applications II
Wenhan Jiang; Robert K. Tyson, Editor(s)

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