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The fiber noise suppression of astro-comb fiber link system for Chinese 2.16m telescope
Huiqi Ye1,2; Jian Han1,2; Yuanjie Wu1,2; Dong Xiao1,2
2016-08-09
Conference NameSPIE Vol.9908
Source PublicationGround-based and Airborne Instrumentation for Astronomy VI
Conference Date2016-6-26
Conference PlaceEdinburgh, United Kingdom
Abstract
We built a fiber link system to connect the astronomical laser frequency combs (astro-comb) and the HRS spectrograph for Chinese 2.16m telescope in Xinglong. Fiber noise deteriorates the precision and stability of high spectral resolution fiber-fed spectrograph, especially when the astro-comb is used as calibrators. In order to optimize the performance of the astro-comb fiber link system, it is essential to suppress the fiber noise.

The polygonal fiber is used to improve the scrambling and a vibrator attached to fiber is used to eliminate the speckle.

The experiment results show good suppression of fiber noise with polygonal fiber, especially for the octagonal fiber, together with dynamic agitation by a vibrator.
KeywordFiber Noise Astronomical Laser Frequency Comb Polygonal Fiber Vibrator
Subject Area天文技术与方法
Language英语
Document Type会议论文
Identifierhttp://ir.niaot.ac.cn/handle/114a32/1358
Collection中国科学院南京天文光学技术研究所_会议论文
中科院天文光学技术重点实验室_会议论文
Affiliation1.南京天文光学技术研究所
2.中国科学院天文光学重点实验室
Recommended Citation
GB/T 7714
Huiqi Ye,Jian Han,Yuanjie Wu,et al. The fiber noise suppression of astro-comb fiber link system for Chinese 2.16m telescope[C],2016.
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