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High-efficiency off-axis coupling of rotating optical signals based on internal conical reflection

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Jia, Dagong, Yun, Fenjiao, Wang, Ruihang, Zhang, Hongxia, Xu, Tianhua and Liu, Tiegen (2019) High-efficiency off-axis coupling of rotating optical signals based on internal conical reflection. Optical Fiber Technology, 50 . pp. 76-81. doi:10.1016/j.yofte.2019.02.009

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Official URL: https://doi.org/10.1016/j.yofte.2019.02.009

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Abstract

We propose an off-axis coupling method for rotating optical signals based on the internal conical reflection. An analytic model of off-axis coupling is developed and verified via simulation and experiment. According to theoretical analysis, the coupling efficiency depends on both the reflectivity of, and the number of reflections between, the conical and the circular plane mirrors. When the reflectivity of the conical and the circular plane mirrors are both constant, i.e. n=0.973, the coupling efficiency is decreased with an increase in number of reflections. Experimental results show good agreement with theoretical predictions. In addition, our experiment demonstrates that the proposed method can achieve a multi-channel signal coupling with a maximum insertion loss of 1.62dB in channel T1 and 0.98dB in channel in T2.

Item Type: Journal Article
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Science > Engineering
Library of Congress Subject Headings (LCSH): Optical fibers
Journal or Publication Title: Optical Fiber Technology
Publisher: Elsevier
ISSN: 1068-5200
Official Date: July 2019
Dates:
DateEvent
July 2019Published
6 March 2019Available
22 February 2019Accepted
Volume: 50
Page Range: pp. 76-81
DOI: 10.1016/j.yofte.2019.02.009
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
61875152[NSFC] National Natural Science Foundation of Chinahttp://dx.doi.org/10.13039/501100001809
U1813207[NSFC] National Natural Science Foundation of Chinahttp://dx.doi.org/10.13039/501100001809
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