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11 January 2019 A fiber bundle probe based on stacking-capillary method for LAMOST fiber positioning
Jing Yang, Min Yang, Jiaming Zhang, Meng Wang, Gongdai Chen, Chunying Guan, Hua Bai, Libo Yuan
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Proceedings Volume 10837, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes; 1083702 (2019) https://doi.org/10.1117/12.2504754
Event: Ninth International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT2018), 2018, Chengdu, China
Abstract
In this paper, a novel fiber bundle probe which can transfer energy and provide a real-time feedback signal of fiber positions simultaneously is proposed and demonstrated experimentally to improve the fiber positioning accuracy of the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST). The fiber bundle probe is composed of four asteroid cores around a transmitting energy core at the center of the fiber bundle probe. The excitation characteristics were investigated numerically when a light spot illuminates on the end of the five-core fiber bundle probe. The calculated result shows that the fiber bundle probe can provide a real-time feedback signal when the offset between the center of end of probe and the light spot is in the range of -349.5 ~ -99.5 μm and 99.5 ~ 349.5 μm. Then the fiber bundle probe is fabricated by stacking-capillary method.
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Jing Yang, Min Yang, Jiaming Zhang, Meng Wang, Gongdai Chen, Chunying Guan, Hua Bai, and Libo Yuan "A fiber bundle probe based on stacking-capillary method for LAMOST fiber positioning", Proc. SPIE 10837, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 1083702 (11 January 2019); https://doi.org/10.1117/12.2504754
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KEYWORDS
Feedback signals
Energy efficiency
Structured optical fibers
Telescopes
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