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Proceedings Paper

21-element infrared adaptive optics system at 2.16-m telescope
Author(s): Wenhan Jiang; Guomao Tang; Mingquan Li; Ning Ling; Changhui Rao; Chunlin Guan; Lingtao Jiang; Feng Shen; Mei Li; Yanying Li; Donghong Chen; Jingyao Hu; Gang Wang; Jinghao Sun
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Paper Abstract

A 21-element adaptive optics system installed at the 2.16m telescope of Beijing Astronomical Observatory has been in operation. It is made up of a pair of shearing interferometer (SI), a 21-element deformable mirror, a fast steering mirror, a digital wavefront processor, a precise tracking subsystem and a PtSi IR CCD camera. In this paper the performance of the system will be briefly introduced. Its observation results in IR K band and in visible band are reported. For the system, 0.25 arcsec resolution has been achieved in IR K band, which approaches the diffraction limit of the 2.16m aperture. In visible band, 0.13arcsec resolution has been also achieved. For the star of magnitude 9.m2, the compensation of the system is still effective. The error rejection bandwidth of the system can be adjusted in the range from 5Hz to 40Hz according to the beacon magnitude and the strength of the atmospheric turbulence.

Paper Details

Date Published: 27 September 1999
PDF: 8 pages
Proc. SPIE 3762, Adaptive Optics Systems and Technology, (27 September 1999); doi: 10.1117/12.363569
Show Author Affiliations
Wenhan Jiang, Institute of Optics and Electronics (China)
Guomao Tang, Institute of Optics and Electronics (China)
Mingquan Li, Institute of Optics and Electronics (China)
Ning Ling, Institute of Optics and Electronics (China)
Changhui Rao, Institute of Optics and Electronics (China)
Chunlin Guan, Institute of Optics and Electronics (China)
Lingtao Jiang, Institute of Optics and Electronics (China)
Feng Shen, Institute of Optics and Electronics (China)
Mei Li, Institute of Optics and Electronics (China)
Yanying Li, Institute of Optics and Electronics (China)
Donghong Chen, Institute of Optics and Electronics (China)
Jingyao Hu, Beijing Astronomical Observatory (China)
Gang Wang, Beijing Astronomical Observatory (China)
Jinghao Sun, Beijing Astronomical Observatory (China)


Published in SPIE Proceedings Vol. 3762:
Adaptive Optics Systems and Technology
Robert K. Tyson; Robert Q. Fugate, Editor(s)

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