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题名:
Wavefront sensorless adaptive optics: a general model-based approach
作者: Huang LH; Rao CH
刊名: OPTICS EXPRESS
出版日期: 2011
卷号: 19, 期号:1, 页码:371-379
通讯作者: Huang LH (Huang Linhai)
文章类型: 期刊论文
中文摘要: Wavefront sensorless adaptive optics (AO) systems have been widely studied in recent years. To reach optimum results, such systems require an efficient correction method. In this paper, a general model-based correction method for a wavefront sensorless AO system is presented. The general model-based approach is set up based on a relationship wherEin the second moments (SM) of the wavefront gradients are approximately proportionate to the FWHM of the far-field intensity distribution. The general model-based method is capable of taking various common sets of functions as predetermined bias functions and correcting the aberrations by using fewer photodetector measurements. Numerical simulations of AO corrections of various random aberrations are performed. The results show that the Strehl ratio is improved from 0.07 to about 0.90, with only N + 1 photodetector measurement for the AO correction system using N aberration modes as the predetermined bias functions. (C) 2010 Optical Society of America
英文摘要: Wavefront sensorless adaptive optics (AO) systems have been widely studied in recent years. To reach optimum results, such systems require an efficient correction method. In this paper, a general model-based correction method for a wavefront sensorless AO system is presented. The general model-based approach is set up based on a relationship wherEin the second moments (SM) of the wavefront gradients are approximately proportionate to the FWHM of the far-field intensity distribution. The general model-based method is capable of taking various common sets of functions as predetermined bias functions and correcting the aberrations by using fewer photodetector measurements. Numerical simulations of AO corrections of various random aberrations are performed. The results show that the Strehl ratio is improved from 0.07 to about 0.90, with only N + 1 photodetector measurement for the AO correction system using N aberration modes as the predetermined bias functions. (C) 2010 Optical Society of America
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/6217
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作者单位: 中国科学院光电技术研究所

Recommended Citation:
Huang LH,Rao CH. Wavefront sensorless adaptive optics: a general model-based approach[J]. OPTICS EXPRESS,2011,19(1):371-379.
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