The reconstruction of wavefront from single far-field image data has unique advantages in simplicity of structure. However, the traditional wavefront reconstruction algorithm has multiple solutions based on single far-field image, its iterative process easily falls into stagnation. In this paper, based on the analysis of the multi-solution problem of single-frame phase retrieval method, a wavefront reconstruction method based on Walsh function two-dimensional discrete phase modulation is proposed. This method can effectively break the symmetry of near-field wavefront and overcome problem of multiple solutions. The simulation results show that the method can accurately reconstruct wavefront aberration with only one far-field image.
Single-frame far-field wavefront retrieval method based on Walsh function modulation
First published at:Jun 15, 2020
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National Natural Science Foundation of China (61805251) and Chinese Academy of Sciences Youth Innovation Promotion Agency (2017429)
Get Citation: Kong Qingfeng, Wang Shuai, Yang Ping, et al. Single-frame far-field wavefront retrieval method based on Walsh function modulation[J]. Opto-Electronic Engineering, 2020, 47(6): 190323.
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