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Proceedings Paper

Adaptive optical system based on deformable secondary mirror on 1.8-meter telescope
Author(s): Changhui Rao; Ang Zhang; Xinlong Fan; Youming Guo; Kai Wei; Chunlin Guan; Xuejun Zhang; Cheng Li; Luchun Zhou; Shanqiu Chen; Hao Xian; Wenli Ma; Yuntao Cheng; Hong Zhou; Yudong Zhang
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Paper Abstract

In 2009, A 127-element adaptive system had been manufactured and installed at the Coude room of the 1.8-meter telescope at the Gaomeigu site of Yunnan Astronomical Observatory, Chinese Academy of Sciences. A set of new adaptive optical system based on a 73-element deformable secondary mirror is being developed and will be integrated into the 1.8-meter telescope. The 73-element deformable secondary mirror with convex reflecting surface is designed to be compatible with the Cassegrain focus of the 1.8-meter telescope. Comparing with the AO system of Coude focus, the AO system on the deformable secondary mirror adopts much less reflections and consequently restrains the thermal noise and increases the energy transmitting to the system. The design and simulation results of this system will be described in this paper. Furthermore, the preliminary test result of the deformable secondary mirror in the lab is also presented.

Paper Details

Date Published: 13 September 2012
PDF: 10 pages
Proc. SPIE 8447, Adaptive Optics Systems III, 84473H (13 September 2012); doi: 10.1117/12.925659
Show Author Affiliations
Changhui Rao, Institute of Optics and Electronics (China)
Ang Zhang, Institute of Optics and Electronics (China)
Xinlong Fan, Institute of Optics and Electronics (China)
Graduate Univ. of the Chinese Academy of Sciences (China)
Youming Guo, Institute of Optics and Electronics (China)
Graduate Univ. of the Chinese Academy of Sciences (China)
Kai Wei, Institute of Optics and Electronics (China)
Chunlin Guan, Institute of Optics and Electronics (China)
Xuejun Zhang, Institute of Optics and Electronics (China)
Cheng Li, Institute of Optics and Electronics (China)
Graduate Univ. of the Chinese Academy of Sciences (China)
Luchun Zhou, Institute of Optics and Electronics (China)
Shanqiu Chen, Institute of Optics and Electronics (China)
Hao Xian, Institute of Optics and Electronics (China)
Wenli Ma, Institute of Optics and Electronics (China)
Yuntao Cheng, Institute of Optics and Electronics (China)
Hong Zhou, Institute of Optics and Electronics (China)
Yudong Zhang, Institute of Optics and Electronics (China)


Published in SPIE Proceedings Vol. 8447:
Adaptive Optics Systems III
Brent L. Ellerbroek; Enrico Marchetti; Jean-Pierre Véran, Editor(s)

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