Large-scale piston error detection technology for segmented optical mirrors via convolutional neural networks

In the cophasing of the segmented optical mirrors, the Shack-Hartmann wavefront sensor is not sensitive to the submirror piston error and the large range piston errors beyond the cophasing detection range of phase diversity algorithm. It is necessary to introduce specific sensors (e.g., microlenses...

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Bibliographic Details
Published in:Optics letters Vol. 44; no. 5; p. 1170
Main Authors: Li, Dequan, Xu, Shuyan, Wang, Dong, Yan, Dejie
Format: Journal Article
Language:English
Published: United States 01.03.2019
ISSN:1539-4794, 1539-4794
Online Access:Get more information
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