Aberration compensation strategy for the radius of curvature error of the primary mirror in off-axis three-mirror anastigmatic telescopes

doi:10.1364/AO.431908

CIOMP OpenIR

	Aberration compensation strategy for the radius of curvature error of the primary mirror in off-axis three-mirror anastigmatic telescopes
	X. Bai; B. Xu; G. Ju; H. Ma; C. Zhang; S. Wang and S. Xu
	2021
发表期刊	Applied Optics
ISSN	1559128X
卷号	60 期号:21 页码:6199-6212
摘要	This paper discusses compensation strategies for the aberration fields caused by the error in the radius of curvature (ROC) of the primary mirror (PM) in pupil-offset off-axis three-mirror anastigmatic (TMA) astronomical telescopes. Based on the nodal aberration theory framework, the specific astigmatic and coma aberrations of the off-axis three-mirror system in the presence of the ROC error of the PM are derived. It is demonstrated that some field-dependent aberration components can be induced by ROC error in the off-axis TMA telescopes, apart from the dominating field-constant aberration terms. To reduce the influence of the ROC error on the aberration fields, we propose two aberration compensation strategies: Adjusting the position of the PM and introducing axial misalignment of the secondary mirror (SM). Through theoretical analysis and simulations, we conclude that the compensation strategy of changing the axial position of the PM can make the aberration distribution close to the nominal state; the compensation strategy of axially adjusting theSMcan make the aberration distribution meet the observation requirements, which is more suitable for space applications. We also discuss compensating the effect of theROCerror using lateral misalignments. 2021 Optical Society of America.
DOI	10.1364/AO.431908
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收录类别	SCI ; EI
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/65019
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	X. Bai,B. Xu,G. Ju,et al. Aberration compensation strategy for the radius of curvature error of the primary mirror in off-axis three-mirror anastigmatic telescopes[J]. Applied Optics,2021,60(21):6199-6212.
APA	X. Bai,B. Xu,G. Ju,H. Ma,C. Zhang,&S. Wang and S. Xu.(2021).Aberration compensation strategy for the radius of curvature error of the primary mirror in off-axis three-mirror anastigmatic telescopes.Applied Optics,60(21),6199-6212.
MLA	X. Bai,et al."Aberration compensation strategy for the radius of curvature error of the primary mirror in off-axis three-mirror anastigmatic telescopes".Applied Optics 60.21(2021):6199-6212.

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