3 December 2010 Analysis on measured signal retrieval approaches in non-modulation pyramid wavefront sensor
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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.
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Jianxin Wang, Jianxin Wang, Fuzhong Bai, Fuzhong Bai, Yu Ning, Yu Ning, Shengqian Wang, Shengqian Wang, Lanqiang Zhang, Lanqiang Zhang, } "Analysis on measured signal retrieval approaches in non-modulation pyramid wavefront sensor", Proc. SPIE 7853, Advanced Sensor Systems and Applications IV, 78533G (3 December 2010); doi: 10.1117/12.870698; https://doi.org/10.1117/12.870698
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