Simple and robust algorithm to extend the dynamic range of tip-tilt for a Shack-Hartmann sensor

	Simple and robust algorithm to extend the dynamic range of tip-tilt for a Shack-Hartmann sensor
	Li, M. X.; D. Y. Li; L. F. Hu; Q. Q. Mu; Z. L. Cao; H. Y. Xu; X. H. Lu and L. Xuan
	2015
发表期刊	Applied Optics
卷号	54 期号:30 页码:9030-9036
摘要	We propose an algorithm to extend the dynamic range of tip-tilt (TT) for a Shack-Hartmann wave-front sensor. With this method, the dynamic range of TT is determined by the size of the whole CCD pixel array rather than the size of the sub-aperture. Thus the separate TT sensor in adaptive optics (AO) systems for optical telescope can be saved, which will simplify the systems and enhance the light energy efficiency. The proposed algorithm is computationally effective and appropriate for the real-time TT computation of AO systems. The simulated and experimental results show that the algorithm is robust to realistic scintillation and photon noise and can work well under poor observing conditions. For the given condition with r(0) of 5 cm at 550 nm and average flux of 100 photons per sub-aperture, the ultimate measurement accuracy of TT is about 5% pixels (peak-to-valley value). (C) 2015 Optical Society of America
收录类别	SCI
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/55400
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Li, M. X.,D. Y. Li,L. F. Hu,et al. Simple and robust algorithm to extend the dynamic range of tip-tilt for a Shack-Hartmann sensor[J]. Applied Optics,2015,54(30):9030-9036.
APA	Li, M. X..,D. Y. Li.,L. F. Hu.,Q. Q. Mu.,Z. L. Cao.,...&X. H. Lu and L. Xuan.(2015).Simple and robust algorithm to extend the dynamic range of tip-tilt for a Shack-Hartmann sensor.Applied Optics,54(30),9030-9036.
MLA	Li, M. X.,et al."Simple and robust algorithm to extend the dynamic range of tip-tilt for a Shack-Hartmann sensor".Applied Optics 54.30(2015):9030-9036.

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