Photonics Large-Survey Telescope Internal Motion Metrology System

doi:10.3390/photonics10050595

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	Photonics Large-Survey Telescope Internal Motion Metrology System
	Q. C. An, H. F. Zhang, X. X. Wu, J. L. Wang, T. Chen and H. W. Li
	2023
发表期刊	Photonics
卷号	10 期号:5 页码:10
摘要	Large survey telescopes are vital for mapping dark energy and dark matter in the deep universe. This study presents a fiber-linked internal motion metrology system that aligns the mirrors and large lenses in the telescopes to enhance alignment accuracy by improving the image quality at a lower weight, volume, power, and cost. The internal motion system comprises a photonic laser beam projector capable of projecting multiple Gaussian beams onto the detector of the telescope. The specific spatial frequency aberration component is determined by combining Gaussian beam location and the geometry model of the telescope. Furthermore, integrating the proposed system with the curvature-sensing wavefront system enables more precise alignment and camera sensing. In the experimental tests, the location precision was within 10 mu m, and the rotation precision improved to 5 arcsecs, fulfilling the alignment and motion monitoring requirements of large survey telescopes. The results of this study can be used as a reference to improve the performance of closed-loop bandwidth systems and active camera optics.
DOI	10.3390/photonics10050595
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收录类别	sci
语种	英语
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文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/67322
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	Q. C. An, H. F. Zhang, X. X. Wu, J. L. Wang, T. Chen and H. W. Li. Photonics Large-Survey Telescope Internal Motion Metrology System[J]. Photonics,2023,10(5):10.
APA	Q. C. An, H. F. Zhang, X. X. Wu, J. L. Wang, T. Chen and H. W. Li.(2023).Photonics Large-Survey Telescope Internal Motion Metrology System.Photonics,10(5),10.
MLA	Q. C. An, H. F. Zhang, X. X. Wu, J. L. Wang, T. Chen and H. W. Li."Photonics Large-Survey Telescope Internal Motion Metrology System".Photonics 10.5(2023):10.

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