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题名:
A modified phase diversity wavefront sensor with a diffraction grating
作者: Luo Qun1,2,3; Huang Lin-Hai2,3; Gu Nai-Ting2,3; Rao Chang-Hui2,3
刊名: CHINESE PHYSICS B
出版日期: 2012-09-01
卷号: 21, 期号:9
关键词: phase diversity wavefront sensor ; diffraction grating ; aberration ; signal-to-noise ratio
文章类型: Article
英文摘要: The phase diversity wavefront sensor is one of the tools used to estimate wavefront aberration, and it is often used as a wavefront sensor in adaptive optics systems. However, the performance of the traditional phase diversity wavefront sensor is limited by the accuracy and dynamic ranges of the intensity distribution at the focus and defocus positions of the CCD camera. In this paper, a modified phase diversity wavefront sensor based on a diffraction grating is proposed to improve the ability to measure the wavefront aberration with larger amplitude and higher spatial frequency. The basic principle and the optics construction of the proposed method are also described in detail. The noise propagation property of the proposed method is also analysed by using the numerical simulation method, and comparison between the diffraction grating phase diversity wavefront sensor and the traditional phase diversity wavefront sensor is also made. The simulation results show that the diffraction grating phase diversity wavefront sensor can obviously improve the ability to measure the wavefront aberration, especially the wavefront aberration with larger amplitude and higher spatial frequency.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Physics, Multidisciplinary
研究领域[WOS]: Physics
收录类别: SCI
语种: 英语
WOS记录号: WOS:000308870300036
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/2412
Appears in Collections:光电技术研究所被WoS收录文章_期刊论文

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作者单位: 1.Natl Univ Def Technol, Coll Optoelect Sci & Engn, Changsha 410073, Hunan, Peoples R China
2.Chinese Acad Sci, Inst Opt & Elect, Lab Adapt Opt, Chengdu 610209, Peoples R China
3.Chinese Acad Sci, Key Lab Adapt Opt, Chengdu 610209, Peoples R China

Recommended Citation:
Luo Qun,Huang Lin-Hai,Gu Nai-Ting,et al. A modified phase diversity wavefront sensor with a diffraction grating[J]. CHINESE PHYSICS B,2012,21(9).
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