Experimental and theoretical studies on a distributed temperature sensor based on Brillouin scattering

Author

Bao, X. ; Dhliwayo, Jabulani ; Heron, Nicol ; Webb, David J. ; Jackson, D.A.

Author_Institution

Dept. of Phys., New Brunswick Univ., Fredericton, NB, Canada

Volume

13

Issue

7

fYear

1995

fDate

7/1/1995 12:00:00 AM

Firstpage

1340

Lastpage

1348

Abstract

Results are reported from recent research on the use of the Brillouin gain/loss mechanism for distributed sensing. A theoretical model of the interaction of the pulsed and CW beams is described and compared with experiments. Results from a system with a 51 km sensing length are presented. We finally investigate issues related to the variation within the sensing fiber of the polarizations of the two beams

Keywords

Brillouin spectra; fibre optic sensors; optical fibre losses; optical fibre polarisation; spectral methods of temperature measurement; 51 km; Brillouin gain; Brillouin loss mechanism; Brillouin scattering; CW beams; beam polarisation; distributed sensing; distributed temperature sensor; fibre optic sensors; pulsed beams; sensing fiber; sensing length; Acoustic scattering; Acoustic waves; Brillouin scattering; Frequency; Optical fiber polarization; Optical fibers; Optical scattering; Optical sensors; Raman scattering; Temperature sensors;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.400678

Filename

400678