Open-loop correction of horizontal turbulence: system design and result

	Open-loop correction of horizontal turbulence: system design and result
其他题名	论文其他题名
	Mu Q. Q.; Cao Z. L.; Li D. Y.; Hu L.; Xuan L.
	2008
发表期刊	Applied Optics
ISSN	0003-6935
卷号	47 期号:23 页码:4297-4301
摘要	Adaptive optics systems often work in a closed-loop configuration due to the hysteretic and nonlinearity properties of conventional deformable mirrors. Because of the high-precision wavefront generation and nonhysteretic properties of liquid-crystal devices, the open-loop control becomes possible. Open-loop control is a requirement for advanced adaptive optics concepts. We designed an open-loop adaptive optics system with a liquid-crystal-on-silicon wavefront corrector. This system is simple, fast, and can save much more light compared to conventional liquid-crystal-based closed-loop systems. The detailed principle, construction, and operation are discussed. The 500 in horizontal turbulence correction experiment Was done using a 250mm telescope in the laboratory. The whole system can reach a 60Hz correction frequency. Evaluation of the correction precision was done at closed-loop Configuration, which is 0.2 lambda (lambda = 0.633 mu m) in peak to valley. The dynamic image under open-loop correction got the same resolution compared to closed-loop correction. The whole system reached 0.68 arc sec resolution capability at open-loop correction, which is slightly larger than the system's diffraction-limited resolution of 0.65 arc sec. (C) 2008 Optical Society of America.
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/24857
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.,Li D. Y.,et al. Open-loop correction of horizontal turbulence: system design and result[J]. Applied Optics,2008,47(23):4297-4301.
APA	Mu Q. Q.,Cao Z. L.,Li D. Y.,Hu L.,&Xuan L..(2008).Open-loop correction of horizontal turbulence: system design and result.Applied Optics,47(23),4297-4301.
MLA	Mu Q. Q.,et al."Open-loop correction of horizontal turbulence: system design and result".Applied Optics 47.23(2008):4297-4301.

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