The effects of centroid anisoplanatism on measuring and mitigating tip-tilt disturbance

Fengjiao Zeng; Kangjian Yang; Lianghua Wen; Ping Yang; Shuai Wang; Ming Wu; Baiwei Xu; Xu Yan; Mengmeng Zhao

doi:10.1117/12.2565053

17 April 2020 The effects of centroid anisoplanatism on measuring and mitigating tip-tilt disturbance

Fengjiao Zeng, Kangjian Yang, Lianghua Wen, Ping Yang, Shuai Wang, Ming Wu, Baiwei Xu, Xu Yan, Mengmeng Zhao

Proceedings Volume 11455, Sixth Symposium on Novel Optoelectronic Detection Technology and Applications; 114555B (2020) https://doi.org/10.1117/12.2565053
Event: Sixth Symposium on Novel Photoelectronic Detection Technology and Application, 2019, Beijing, China

Abstract

Centroid anisoplanatism degrades the precision of tip-tilt disturbance measurement and therefore the performance of beam jitter control. In this paper, the arisen of centroid anisoplanatism is explained by Zernike-polynomial expansion in Cartesian coordinate, which focuses on the cross coupling between tip-tilt term and coma term. To our knowledge, this interpretation is significantly different from previous research. The simulation of beam jitter control in presence of centroid anisoplanatism is accomplished. The larger residual variance of tip-tilt disturbances after correction can be found due to centroid anisoplanatism.

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Fengjiao Zeng, Kangjian Yang, Lianghua Wen, Ping Yang, Shuai Wang, Ming Wu, Baiwei Xu, Xu Yan, and Mengmeng Zhao "The effects of centroid anisoplanatism on measuring and mitigating tip-tilt disturbance", Proc. SPIE 11455, Sixth Symposium on Novel Optoelectronic Detection Technology and Applications, 114555B (17 April 2020); https://doi.org/10.1117/12.2565053

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