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Proceedings Paper

Stabilization technique of optic fiber delay lines for photonic sensing
Author(s): Chun Xiao; Jun-jiang Ren; Wen-jie Wei; Cheng-lin Xu; Jian-ping Huang
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Paper Abstract

In this contribution, optic fibers of a serial of doping proportions were prepared and tested. It’s found that B could decrease the sensitivity of refractive index to the temperature, and the sensitivity decreased 2% as the B’s molar percentage increased 1%. By comparing fiber samples’ test results, the proportion of Si: B: Ge to achieve the lowest Δn/ΔT was 0.75: 0.15: 0.1. After balancing the Δn/ΔT and loss, the recommended proportion of Si: B: Ge was given as 0.77: 0.15: 0.08. With this method, the optic fiber delay lines’ time delay could be reduced to 30 ps/km/°C, and their loss is lower than 0.5dB/km at 1550nm wavelength. Besides B and Ge, other kinds of elements are now being used to add into the fiber to improve the property of delay, and decay lines will make the photonic sensing more reliable and stable.

Paper Details

Date Published: 8 October 2015
PDF: 4 pages
Proc. SPIE 9679, AOPC 2015: Optical Fiber Sensors and Applications, 96790B (8 October 2015); doi: 10.1117/12.2199073
Show Author Affiliations
Chun Xiao, China Electronics Technology Group Corp. (China)
Jun-jiang Ren, China Electronics Technology Group Corp. (China)
Wen-jie Wei, Tongji Univ. (China)
Cheng-lin Xu, China Electronics Technology Group Corp. (China)
Jian-ping Huang, China Electronics Technology Group Corp. (China)


Published in SPIE Proceedings Vol. 9679:
AOPC 2015: Optical Fiber Sensors and Applications
Yanbiao Liao; Weixu Zhang; Desheng Jiang; Wei Wang; Gilberto Brambilla, Editor(s)

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