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Proceedings Paper

Adaptive optics image compensation experiment for star objects
Author(s): Wenhan Jiang; Mingquan Li; Guomao Tang; N. Ling; M. Li; Dengfeng Zheng
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Paper Abstract

We have developed an adaptive optics image compensation system. It consists of a tip-tilt mirror, a 21 actuator deformable mirror, a photon counting shearing interferometer, a digital wavefront processor and an ICCD array camera. In this system, both the wavefront sensing and the correction are performed at visible wavelengths. The servo bandwidth of the system in open-loop is 65 Hz at 0 dB point. This system has been successfully tested on a telescope of Yunnan Observatory in China. The tested aperture is 375 nm. The system works satisfactory with stars brighter than mv equals 3m.78. The minimum photocount of wavefront sensing is 95 per subaperture per integrated time. The experiment results is presented, which demonstrate the considerable gain in resolution either for single stars or for binary stars.

Paper Details

Date Published: 25 August 1993
PDF: 11 pages
Proc. SPIE 1920, Active and Adaptive Optical Components and Systems II, (25 August 1993); doi: 10.1117/12.152688
Show Author Affiliations
Wenhan Jiang, Institute of Optics and Electronics (China)
Mingquan Li, Institute of Optics and Electronics (China)
Guomao Tang, Institute of Optics and Electronics (China)
N. Ling, Institute of Optics and Electronics (China)
M. Li, Institute of Optics and Electronics (China)
Dengfeng Zheng, Institute of Optics and Electronics (China)


Published in SPIE Proceedings Vol. 1920:
Active and Adaptive Optical Components and Systems II
Mark A. Ealey, Editor(s)

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