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Self-calibrating phase measurement based on diffraction theory and numerical simulation experiments
Zhou, Liao1,2,3,4; Qi, Qiu2; Hao, Xian1,3
Source PublicationOptical Engineering
Volume54Issue:2Pages:141736
2015
Language英语
ISSN0091-3286
DOI10.1117/1.OE.54.2.025116
Indexed BySCI ; Ei
WOS IDWOS:000350481900034
Subtype期刊论文
AbstractTo achieve a full-aperture, diffraction-limited image, a telescope's segmented primary mirror must be properly phased. Furthermore, it is crucial to detect the piston errors between individual segments with high accuracy. Based on the diffraction imaging theory, the symmetrically shaped aperture with an arbitrarily positioned entrance pupil would focus at the optical axis with a symmetrical diffraction pattern. By selecting a single mirror as a reference mirror and regarding the diffraction image's center as the calibration point, a function can be derived that expresses the relationship between the piston error and the distance from the center of the inference image to the calibration point is linearity within one-half wavelength. These theoretical results are shown to be consistent with the results of a numerical simulation. Using this method, not only the piston error, but also the tip'tilt error can be detected. This method is simple and effective; it yields high-accuracy measurements and requires less computation time. © The Authors.; To achieve a full-aperture, diffraction-limited image, a telescope's segmented primary mirror must be properly phased. Furthermore, it is crucial to detect the piston errors between individual segments with high accuracy. Based on the diffraction imaging theory, the symmetrically shaped aperture with an arbitrarily positioned entrance pupil would focus at the optical axis with a symmetrical diffraction pattern. By selecting a single mirror as a reference mirror and regarding the diffraction image's center as the calibration point, a function can be derived that expresses the relationship between the piston error and the distance from the center of the inference image to the calibration point is linearity within one-half wavelength. These theoretical results are shown to be consistent with the results of a numerical simulation. Using this method, not only the piston error, but also the tip'tilt error can be detected. This method is simple and effective; it yields high-accuracy measurements and requires less computation time. © The Authors.
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Document Type期刊论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/6435
Collection自适应光学技术研究室(八室)
Corresponding AuthorZhou, Liao
Affiliation1. Chinese Academy of Sciences, Laboratory on Adaptive Optics, Institute of Optics and Electronics, Chengdu, China
2. University of Electronic Science and Technology of China, School of Optoelectronic Information, Chengdu, China
3. Chinese Academy of Sciences, Key Laboratory on Adaptive Optics, Chengdu, China
4. University of Chinese Academy of Sciences, Beijing, China
Recommended Citation
GB/T 7714
Zhou, Liao,Qi, Qiu,Hao, Xian. Self-calibrating phase measurement based on diffraction theory and numerical simulation experiments[J]. Optical Engineering,2015,54(2):141736.
APA Zhou, Liao,Qi, Qiu,&Hao, Xian.(2015).Self-calibrating phase measurement based on diffraction theory and numerical simulation experiments.Optical Engineering,54(2),141736.
MLA Zhou, Liao,et al."Self-calibrating phase measurement based on diffraction theory and numerical simulation experiments".Optical Engineering 54.2(2015):141736.
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