Application of fiber-integrated technology in astronomical spectral observation

Anzhi Wang; Gang Yue; Jiabin Wang; Zhaoxv Gan; Yunxiang Yan; Shengjia Wang; Qi Yan; Tao Geng; Pengfei Wang; Shuang Chen; Weimin Sun

doi:10.1117/12.3019896

26 August 2024 Application of fiber-integrated technology in astronomical spectral observation

Anzhi Wang, Gang Yue, Jiabin Wang, Zhaoxv Gan, Yunxiang Yan, Shengjia Wang, Qi Yan, Tao Geng, Pengfei Wang, Shuang Chen, Weimin Sun

Author Affiliations +

Proceedings Volume 13100, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation VI; 131002N (2024) https://doi.org/10.1117/12.3019896
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Abstract

Optical fiber spectroscopy technology is widely used in astronomical surveys. Due to the flexibility and long-distance transmission characteristics of the fiber, astronomical observation can gain larger scale and higher precision spectral data. Nowadays, a lot of representative technologies have been presented to enhance spectral resolution, including fiber integral field spectroscopy, fiber positioning technology in the sky survey, adaptive optics, and photonic lantern technology. Fiber spectroscopy technology plays a crucial role in astronomy. The long-distance transmission characteristics of fibers separate the telescope from the spectrograph. The intrinsic flexibility of fibers lends itself readily to reconfigurable sampling of the field. The method to improve the spectral resolution has been gradually proposed. Fiber integral field spectroscopy is one of the most typical techniques to enhance the spectrum resolution. The flexible combination of fiber bundle and microlens is used to improve the sampling rate of target stars and fitting factor. In the observation of target stars by a single fiber, the alignment accuracy between the fiber and the star image determines the spectrum resolution. In the multi-object telescope, the position of a large number of multi-mode fibers needs to be detected. As a kind of optical waveguide device with multi-mode and single-mode conversion, photonic lantern can convert the energy collected by multi-mode fiber into the output of single-mode fiber. This review introduces optical fiber technology on astronomical observation.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Anzhi Wang, Gang Yue, Jiabin Wang, Zhaoxv Gan, Yunxiang Yan, Shengjia Wang, Qi Yan, Tao Geng, Pengfei Wang, Shuang Chen, and Weimin Sun "Application of fiber-integrated technology in astronomical spectral observation", Proc. SPIE 13100, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation VI, 131002N (26 August 2024); https://doi.org/10.1117/12.3019896

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