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A dual-Brillouin-peak optical fiber for simultaneous distributed strain and temperature measurement
Author(s): Xiaoguang Sun; Kyle Bedard; Jie Li; Robert S. Dyer
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Paper Abstract

Single mode (SM) optical fiber with multiple Brillouin scattering peaks can be used for simultaneous strain and temperature measurement based on Brillouin frequency shift (BFS), but the measurement uncertainties are high due to the low Brillouin gains of higher-order acoustic modes. A new SM fiber is designed and fabricated with enhanced Brillouin gain of higher-order acoustic modes so that the gains of the multiple Brillouin peaks are at a similar level. The temperature coefficients of the BFSs of the peaks are also made significantly different to improve the accuracy of the measured strain and temperature.

Paper Details

Date Published: 23 October 2018
PDF: 6 pages
Proc. SPIE 10821, Advanced Sensor Systems and Applications VIII, 1082103 (23 October 2018); doi: 10.1117/12.2500926
Show Author Affiliations
Xiaoguang Sun, OFS (United States)
Kyle Bedard, OFS (United States)
Jie Li, OFS (United States)
Robert S. Dyer, OFS (United States)


Published in SPIE Proceedings Vol. 10821:
Advanced Sensor Systems and Applications VIII
Tiegen Liu; Shibin Jiang, Editor(s)

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