Abstract

Brillouin scattering-based fiber optic sensors are useful to measure strain or temperature in a distributed manner. Since the Brillouin frequency of an optical fiber depends on both the strain and temperature, it is very important to know whether the Brillouin frequency shift is caused by the strain change or temperature change. This article presents a temperature compensation technique of a Brillouin scattering-based fiber optic strain sensor. Both the changes of the Brillouin frequency and the Brillouin gain power is observed for the temperature compensation using a BOTDA sensor system. Experimental results showed that the temperature compensated strain values were highly consistent with actual strain values.

© 2004 Optical Society of Korea

Strain event detection using a double-pulse technique of a Brillouin scattering-based distributed optical fiber sensor

Seok-Beom Cho, Jung-Ju Lee, and Il-Bum Kwon
Opt. Express 12(18) 4339-4346 (2004)

Coupled temperature and γ-radiation effect on silica-based optical fiber strain sensors based on Rayleigh and Brillouin scatterings

A. Piccolo, S. Delepine-Lesoille, M. Landolt, S. Girard, Y. Ouerdane, and C. Sabatier
Opt. Express 27(15) 21608-21621 (2019)

Dynamic temperature-strain discrimination using a hybrid distributed fiber sensor based on Brillouin and Rayleigh scattering

Matthew J. Murray, Joseph B. Murray, Hannah M. Ogden, and Brandon Redding
Opt. Express 31(1) 287-300 (2023)

Combined distributed temperature and strain sensor based on Brillouin loss in an optical fiber

X. Bao, D. J. Webb, and D. A. Jackson
Opt. Lett. 19(2) 141-143 (1994)

Distributed fiber temperature and strain sensor using coherent radio-frequency detection of spontaneous Brillouin scattering

Jihong Geng, Sean Staines, Mike Blake, and Shibin Jiang
Appl. Opt. 46(23) 5928-5932 (2007)