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A low-cost and high-performance technique for adaptive optics static wavefront correction
Ren DQ(任德清); Zhang TY(张天宇); Wang G(王钢)
2021-07
发表期刊Research in A stronomy and A strophysics
卷号21期号:7页码:181-188
摘要

Non-Common Path Error (NCPE) is one of the factors that limit an Adaptive Optics (AO) system from delivering ultra-high performance. To correct the NCPE associated static aberration, we propose a simple but robust and high-performance pupil-plane based wavefront measurement and correction technique, which can copy a single-mode fiber generated perfect wavefront to the AO system via an iteration optimization process, and the NCPE can be effectively corrected by directly commanding the Deformable Mirror (DM) of the AO system. Compared with the previous focal-plane based approach that uses focal plane based Point Spread Function (PSF) for correction evaluation, the pupil-plane based approach can be reliably and rapidly converged to a global optimization result and provides better performance, in particular for an AO system with a large initial static wavefront error. This technique we proposed can be implemented in astronomical AO systems where extremely high performance is required.

关键词astronomical instrumentation: adaptive optics astronomical instrumentation: high angular resolution astronomical techniques: high angular resolution
学科领域天文技术与方法
文献类型期刊论文
条目标识符http://ir.niaot.ac.cn/handle/114a32/1960
专题期刊论文
中国科学院南京天文光学技术研究所知识成果
作者单位南京天文光学技术研究所
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Ren DQ,Zhang TY,Wang G. A low-cost and high-performance technique for adaptive optics static wavefront correction[J]. Research in A stronomy and A strophysics,2021,21(7):181-188.
APA Ren DQ,Zhang TY,&Wang G.(2021).A low-cost and high-performance technique for adaptive optics static wavefront correction.Research in A stronomy and A strophysics,21(7),181-188.
MLA Ren DQ,et al."A low-cost and high-performance technique for adaptive optics static wavefront correction".Research in A stronomy and A strophysics 21.7(2021):181-188.
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