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Proceedings Paper

Analysis on measured signal retrieval approaches in non-modulation pyramid wavefront sensor
Author(s): Jianxin Wang; Fuzhong Bai; Yu Ning; Shengqian Wang; Lanqiang Zhang
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Paper Abstract

Pyramid wavefront sensor (PWFS) without modulation is prevailing over one with modulation. So far how to describe measured signals of non-modulation PWFS needs deeply research. In this paper, the theory of the non-modulation PWFS is briefly presented according to wave optics. This paper analyses the existing four approaches in theory. By numerical simulation this paper further verifies the performance of four approaches under the experiment condition. The result shows that the approach with total intensity of pixels conjugate to the same spot in the pupil as signal denominator is the best choice for the non-modulation PWFS in closed-loop correction.

Paper Details

Date Published: 3 December 2010
PDF: 8 pages
Proc. SPIE 7853, Advanced Sensor Systems and Applications IV, 78533G (3 December 2010); doi: 10.1117/12.870698
Show Author Affiliations
Jianxin Wang, Institute of Optics and Electronics (China)
The Key Lab. on Adaptive Optics (China)
Graduate School of the Chinese Academy of Sciences (China)
Fuzhong Bai, Inner Mongolia Univ. of Technology (China)
Yu Ning, Institute of Optics and Electronics (China)
The Key Lab. on Adaptive Optics (China)
National Univ. of Defense Technology (China)
Shengqian Wang, Institute of Optics and Electronics (China)
The Key Lab. on Adaptive Optics (China)
Lanqiang Zhang, Institute of Optics and Electronics (China)
The Key Lab. on Adaptive Optics (China)
Graduate School of the Chinese Academy of Sciences (China)


Published in SPIE Proceedings Vol. 7853:
Advanced Sensor Systems and Applications IV
Brian Culshaw; Yanbiao Liao; Anbo Wang; Xiaoyi Bao; Xudong Fan; Lin Zhang, Editor(s)

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