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Landau Placzek ratio applied to distributed fibre sensing

Landau Placzek ratio applied to distributed fibre sensing
Landau Placzek ratio applied to distributed fibre sensing
It is shown experimentally that the ratio of the intensities of Rayleigh and Brillouin backscattered light (Landau Placzek ratio) in an optical fibre has a temperature dependence which may be used for the basis of a distributed temperature sensor. This result, combined with the known frequency dependence of be Brillouin backscattering on temperature and strain, indicates that spontaneous Brillouin backscatter may be used for the unique determination of either temperature or strain in a distributed optical fibre sensing system.
0030-4018
141-146
Wait, P.C.
5cb979e7-285b-48a0-8b5f-0761ef2da484
Newson, T.P.
6735857e-d947-45ec-8163-54ebb25daad7
Wait, P.C.
5cb979e7-285b-48a0-8b5f-0761ef2da484
Newson, T.P.
6735857e-d947-45ec-8163-54ebb25daad7

Wait, P.C. and Newson, T.P. (1996) Landau Placzek ratio applied to distributed fibre sensing. Optics Communications, 122 (4-6), 141-146. (doi:10.1016/0030-4018(95)00557-9).

Record type: Article

Abstract

It is shown experimentally that the ratio of the intensities of Rayleigh and Brillouin backscattered light (Landau Placzek ratio) in an optical fibre has a temperature dependence which may be used for the basis of a distributed temperature sensor. This result, combined with the known frequency dependence of be Brillouin backscattering on temperature and strain, indicates that spontaneous Brillouin backscatter may be used for the unique determination of either temperature or strain in a distributed optical fibre sensing system.

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Published date: 1996
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Identifiers

Local EPrints ID: 78118
URI: http://eprints.soton.ac.uk/id/eprint/78118
DOI: doi:10.1016/0030-4018(95)00557-9
ISSN: 0030-4018
PURE UUID: 75be26b1-44af-42d0-81e1-df3337d73a7e

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Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 00:06

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Contributors

Author: P.C. Wait
Author: T.P. Newson

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