Novel spectral range expansion method for liquid crystal adaptive optics

	Novel spectral range expansion method for liquid crystal adaptive optics
其他题名	论文其他题名
	Mu Q. Q.; Cao Z. L.; Hu L. F.; Liu Y. G.; Peng Z. H.; Xuan L.
	2010
发表期刊	Optics Express
ISSN	1094-4087
卷号	18 期号:21 页码:21687-21696
摘要	Energy loss is a main problem of liquid crystal adaptive optics systems (LC AOSs). It is caused by the polarization dependence and narrow spectral range. The polarization dependence has been avoided by Love and Mu et al. [Appl. Opt. 32, 2222 (1993); Appl. Opt. 47, 4297 (2008)]. In this paper, a novel method was proposed to extend the spectral range of LC AOSs using multiple liquid crystal wavefront correctors (LCWFCs) to improve the energy utilization. Firstly, the chromatism of an LCWFC was measured and analyzed. The calculated results indicate that one LCWFC is only suitable to perform adaptive correction for a narrow waveband; therefore, multiple LCWFCs must be used to achieve a broadband correction. Secondly, based on open-loop control, a novel optical layout consisting of three LCWFCs was proposed to extend the spectral range of LC AOSs and thus achieve correction in the whole waveband of 520-810 nm. Thirdly, a broadband correction experiment was conducted and near diffraction-limited resolution was achieved in the waveband of 520-690 nm. Finally, a 500 m horizontal turbulence correction experiment was performed in the waveband of 520-690 nm. With adaptive correction, the resolution of the optical system was improved significantly and the image of the single fiber was clearly resolved. Furthermore, compared with a sub-waveband system, the system energy was improved. The energy of the whole waveband is equal to the sum of all the sub-wavebands. The experiment results validated our method and indicate that the chromatism in a broad waveband of LC AOSs can be eliminated. And then, the system energy can be improved greatly using the novel method. (C) 2010 Optical Society of America
收录类别	SCI ; EI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/26171
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Mu Q. Q.,Cao Z. L.,Hu L. F.,et al. Novel spectral range expansion method for liquid crystal adaptive optics[J]. Optics Express,2010,18(21):21687-21696.
APA	Mu Q. Q.,Cao Z. L.,Hu L. F.,Liu Y. G.,Peng Z. H.,&Xuan L..(2010).Novel spectral range expansion method for liquid crystal adaptive optics.Optics Express,18(21),21687-21696.
MLA	Mu Q. Q.,et al."Novel spectral range expansion method for liquid crystal adaptive optics".Optics Express 18.21(2010):21687-21696.

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