22 August 2014 A compact adaptive optics system with 3mm narrow-interval deformable mirror
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Abstract
A 3mm narrow interval deformable mirror (DM) with tip-tilt stage has been developed for astronomical instruments. Benefiting from its compact design, the adaptive optics system can be built with simple structure and smaller optical elements. First, a 37-elements prototype mirror has been developed for our 1.8-meter telescope, which interval space is 3mm, maximum tilt is ±10’, and maximum deformation is ±2μm. Based on this mirror, a simple adaptive optics system has been set up and its performance was tested in the laboratory especially the closed-loop correction ability. This adaptive optics subsystem is scheduled to be mounted at one folded Cassegrain focus of the 1.8-meter telescope this year, and comparison test for star compensation observation using this compact system and conventional adaptive optics system will also be carried out at the same time.
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Min Li, Min Li, Lixia Xue, Lixia Xue, Hao Xian, Hao Xian, Xuejun Rao, Xuejun Rao, Kai Wei, Kai Wei, Xiaojun Zhang, Xiaojun Zhang, Shanqiu Chen, Shanqiu Chen, Ang Zhang, Ang Zhang, Donghong Chen, Donghong Chen, ChangHui Rao, ChangHui Rao, Yudong Zhang, Yudong Zhang, } "A compact adaptive optics system with 3mm narrow-interval deformable mirror", Proc. SPIE 9148, Adaptive Optics Systems IV, 914842 (22 August 2014); doi: 10.1117/12.2056364; https://doi.org/10.1117/12.2056364
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