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Proceedings Paper

High accuracy phase retrieval method research based on Shack-Hartmann wavefront sensor
Author(s): Wenhua Zeng; Yang Lv; Haotong Ma; Yu Ning; Shaojun Du
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Paper Abstract

The Performance of wavefront aberration detection and recovery, is limited by the spatial resolution in subaperture, especially for the high-order aberration. To improve the accuracy of wavefront reconstruction, our paper focuses more on the phase retrieval using the stochastic parallel gradient descent (SPGD) algorithm with lower subaperture. In this paper, the theoretical that Shack-Hartmann wavefront sensor can get a single subaperture high spatial frequency components, which are four-dimensional spatial position and spatial frequency information of the two-dimensional light field is researched.Numerical simulations show that compared with conventional methods, the SPGD algorithm can effectively improve the phase retrieval precision of higher-order aberrations, and decrease the influence of the spatial resolution in subaperture. At the same time, by selecting the appropriate algorithm iterative initial value can effectively enhance the speed of wave front reconstruction.

Paper Details

Date Published: 19 October 2016
PDF: 10 pages
Proc. SPIE 10154, Advanced Optical Design and Manufacturing Technology and Astronomical Telescopes and Instrumentation, 101541D (19 October 2016); doi: 10.1117/12.2246793
Show Author Affiliations
Wenhua Zeng, National Univ. of Denfense Technology (China)
Hunan Provincial Key Lab. of High Laser Technology (China)
Hunan Provincial Collaborative Innovation Ctr. of High Power Fiber (China)
Yang Lv, National Univ. of Denfense Technology (China)
Hunan Provincial Key Lab. of High Laser Technology (China)
Hunan Provincial Collaborative Innovation Ctr. of High Power Fiber (China)
Haotong Ma, National Univ. of Denfense Technology (China)
Hunan Provincial Key Lab. of High Laser Technology (China)
Hunan Provincial Collaborative Innovation Ctr. of High Power Fiber (China)
Yu Ning, National Univ. of Defense Technology (China)
Hunan Provincial Key Lab. of High Laser Technology (China)
Hunan Provincial Collaborative Innovation Ctr. of High Power Fiber (China)
Shaojun Du, National Univ. of Defense Technology (China)
Hunan Provincial Key Lab. of High Laser Technology (China)
Hunan Provincial Collaborative Innovation Ctr. of High Power Fiber (China)


Published in SPIE Proceedings Vol. 10154:
Advanced Optical Design and Manufacturing Technology and Astronomical Telescopes and Instrumentation
Min Xu; Ji Yang, Editor(s)

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