NIAOT OpenIR  > 中国科学院南京天文光学技术研究所  > 期刊论文
An experimental indoor phasing system based on active optics using dispersed Hartmann sensing technology in the visible waveband
Yong Zhang; Gen-Rong Liu; Yue-Fei Wang; Ye-Ping Li; Ya-Jun Zhang; Liang Zhang; Yi-Zhong Zeng; Jie Zhang
2011-09
Source PublicationResearch in Astronomy and Astrophysics
Volume11Issue:9Pages:1111–1122
Abstract
A telescope with a larger primary mirror can collect much more light and resolve objects much better than one with a smaller mirror, and so the larger version is always pursued by astronomers and astronomical technicians. Instead of using a monolithic primary mirror, more and more large telescopes, which are currently being planned or in construction, have adopted a segmented primary mirror design. Therefore, how to sense and phase such a primary mirror is a key issue for the future of extremely large optical/infrared telescopes. The Dispersed Fringe Sensor (DFS), or Dispersed Hartmann Sensor (DHS), is a non-contact method using broadband point light sources and it can estimate the piston by the two-directional spectrum formed by the transmissive grating’s dispersion and lenslet array. Thus it can implement the combination of co-focusing by Shack-Hartmann technology and phasing by dispersed fringe sensing technologies such as the template-mapping method and the Hartmann method. We introduce the successful design, construction and alignment of our dispersed Hartmann sensor together with its design principles and simulations. We also conduct many successful real phasing tests and phasing corrections in the visible waveband using our existing indoor segmented mirror optics platform. Finally, some conclusions are reached based on the test and correction of experimental results.
KeywordAstronomical Instrumentation Active Optics Adaptive Optics
Subject Area主动光学 ; 自适应光学
WOS IDWOS:000295116100009
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.niaot.ac.cn/handle/114a32/629
Collection中国科学院南京天文光学技术研究所_期刊论文
Recommended Citation
GB/T 7714
Yong Zhang,Gen-Rong Liu,Yue-Fei Wang,et al. An experimental indoor phasing system based on active optics using dispersed Hartmann sensing technology in the visible waveband[J]. Research in Astronomy and Astrophysics,2011,11(9):1111–1122.
APA Yong Zhang.,Gen-Rong Liu.,Yue-Fei Wang.,Ye-Ping Li.,Ya-Jun Zhang.,...&Jie Zhang.(2011).An experimental indoor phasing system based on active optics using dispersed Hartmann sensing technology in the visible waveband.Research in Astronomy and Astrophysics,11(9),1111–1122.
MLA Yong Zhang,et al."An experimental indoor phasing system based on active optics using dispersed Hartmann sensing technology in the visible waveband".Research in Astronomy and Astrophysics 11.9(2011):1111–1122.
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