Wavefront sensing and control for a segmented primary mirror

Bing Dong; Xin Yu; Xiaofang Zhang; Baiwei Guo; Lei Zhao

doi:10.1117/12.787535

14 July 2008 Wavefront sensing and control for a segmented primary mirror

Bing Dong; Xin Yu; Xiaofang Zhang; Baiwei Guo; Lei Zhao

Author Affiliations +

Proceedings Volume 7015, Adaptive Optics Systems; 70154U (2008) https://doi.org/10.1117/12.787535
Event: SPIE Astronomical Telescopes + Instrumentation, 2008, Marseille, France

Abstract

Large-aperture segmented primary mirror has been widely used in high-resolution space telescopes. In this paper, we concentrate on the wavefront sensing and control (WFS&C) methods for a segmented primary mirror comprising a central octagon and eight surrounding petals. As the wavefront errors have a wide dynamic range in amplitude and spatial frequency, a multistage wavefront control algorithm is proposed. The control process is divided to five steps to reduce the wavefront errors gradually. A simulation toolbox integrating multi-disciplinary software has been developed to verify our WFS&C algorithms. Simulation results give a good demonstration of the feasibility of our algorithms.

Citation Download Citation

Bing Dong, Bing Dong, Xin Yu, Xin Yu, Xiaofang Zhang, Xiaofang Zhang, Baiwei Guo, Baiwei Guo, Lei Zhao, Lei Zhao, } "Wavefront sensing and control for a segmented primary mirror", Proc. SPIE 7015, Adaptive Optics Systems, 70154U (14 July 2008); doi: 10.1117/12.787535; https://doi.org/10.1117/12.787535

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