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Proceedings Paper

Wavefront correction utilizing the liquid crystal spatial light modulator in adaptive optics
Author(s): Xin Yu; Zhihua Wang; Xiaofang Zhang; Jixiang Yan
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Paper Abstract

A simple and high precision method to measure the phase modulation characteristics of Liquid Crystal Spatial Light Modulator, namely, the relationship between phase and voltage(gray), is proposed. Using the Digital Wave Front Phase-shifting Interferometer, the phase difference from different voltage (gray) can be obtained directly from the interferometer, so it is easy to get the phase modulating characters of Liquid Crystal Spatial Light Modulator. The wavefront correction has been realized by using the Liquid Crystal Spatial Light Modulator in adaptive Optics. The distorted wavefront can be tested in the Interferometer and be expressed by Zernike Polynomial, using the phase modulation character of Liquid Crystal Spatial Light Modulator, the corresponding gray picture can be set up. The conjugate wavefront can be obtained, and thus the correcting of the static distorted wavefront is completed and the effect is displayed as proved by the improvement of correlative parameters such as PV value, rms value and strehl ratio.

Paper Details

Date Published: 18 January 2006
PDF: 13 pages
Proc. SPIE 6038, Photonics: Design, Technology, and Packaging II, 60381B (18 January 2006); doi: 10.1117/12.638158
Show Author Affiliations
Xin Yu, Beijing Institute of Technology (China)
Zhihua Wang, Beijing Institute of Technology (China)
Xiaofang Zhang, Beijing Institute of Technology (China)
Jixiang Yan, Beijing Institute of Technology (China)

Published in SPIE Proceedings Vol. 6038:
Photonics: Design, Technology, and Packaging II
Derek Abbott; Yuri S. Kivshar; Halina H. Rubinsztein-Dunlop; Shanhui Fan, Editor(s)

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