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Enhanced performance of long range Brillouin intensity based temperature sensors using remote Raman amplification

Enhanced performance of long range Brillouin intensity based temperature sensors using remote Raman amplification
Enhanced performance of long range Brillouin intensity based temperature sensors using remote Raman amplification
We report on the use of remote Raman amplification to improve the accuracy of spontaneous Brillouin measurements for long range distributed sensor applications. The enhancement of the signal to noise was demonstrated in a long range distributed temperature sensor exploiting the temperature dependence of the spontaneous Brillouin backscattered signal. A temperature resolution of 8 °C and a spatial resolution of 20 m were obtained at a sensing range of 100 km. The Brillouin signal was averaged 2(20) times.
Cho, Y.T.
eea77b90-e7f3-4496-9637-721dfe8fb5a4
Alahbabi, M.N.
d1831f9f-7696-4b27-86f2-d9cc7f8c00e7
Gunning, M.J.
f794096b-506a-46e1-91ae-3eb905b5b56b
Newson, T.P.
6735857e-d947-45ec-8163-54ebb25daad7
Cho, Y.T.
eea77b90-e7f3-4496-9637-721dfe8fb5a4
Alahbabi, M.N.
d1831f9f-7696-4b27-86f2-d9cc7f8c00e7
Gunning, M.J.
f794096b-506a-46e1-91ae-3eb905b5b56b
Newson, T.P.
6735857e-d947-45ec-8163-54ebb25daad7

Cho, Y.T., Alahbabi, M.N., Gunning, M.J. and Newson, T.P. (2003) Enhanced performance of long range Brillouin intensity based temperature sensors using remote Raman amplification. 16th International Conference on Optical Fiber Sensors (OFS-16). 13 - 17 Oct 2003.

Record type: Conference or Workshop Item (Paper)

Abstract

We report on the use of remote Raman amplification to improve the accuracy of spontaneous Brillouin measurements for long range distributed sensor applications. The enhancement of the signal to noise was demonstrated in a long range distributed temperature sensor exploiting the temperature dependence of the spontaneous Brillouin backscattered signal. A temperature resolution of 8 °C and a spatial resolution of 20 m were obtained at a sensing range of 100 km. The Brillouin signal was averaged 2(20) times.

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More information

Published date: 2003
Venue - Dates: 16th International Conference on Optical Fiber Sensors (OFS-16), 2003-10-13 - 2003-10-17

Identifiers

Local EPrints ID: 41621
URI: https://eprints.soton.ac.uk/id/eprint/41621
PURE UUID: 54670c53-fd61-460f-a3a4-bd6a1b0dcbff

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Date deposited: 10 Oct 2006
Last modified: 17 Jul 2017 15:29

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Contributors

Author: Y.T. Cho
Author: M.N. Alahbabi
Author: M.J. Gunning
Author: T.P. Newson

University divisions

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