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A calibrated 27km distributed fiber temperature sensor based on microwave heterodyne detection of spontaneous Brillouin power

A calibrated 27km distributed fiber temperature sensor based on microwave heterodyne detection of spontaneous Brillouin power
A calibrated 27km distributed fiber temperature sensor based on microwave heterodyne detection of spontaneous Brillouin power
Single-ended distributed fiber temperature measurements using the novel technique of microwave (11 GHz) coherent detection of spontaneous Brillouin backscattered power are presented. Anti-Stokes power traces mere obtained for a sensing length of 27.4 km, believed to be the longest yet demonstrated for such spontaneous power measurements. The power dependence on temperature was measured as 0.36±0.04%/K, and the rms temperature error was less than 3.5 K at the far end of the sensing fiber.
1041-1135
511-513
Maughan, S.M.
cc4e55d8-d9dc-4b2c-b44c-f70813cd1022
Kee, H.H.
2417a0d4-8d5b-447d-8ce7-dda23028ca70
Newson, T.P.
6735857e-d947-45ec-8163-54ebb25daad7
Maughan, S.M.
cc4e55d8-d9dc-4b2c-b44c-f70813cd1022
Kee, H.H.
2417a0d4-8d5b-447d-8ce7-dda23028ca70
Newson, T.P.
6735857e-d947-45ec-8163-54ebb25daad7

Maughan, S.M., Kee, H.H. and Newson, T.P. (2001) A calibrated 27km distributed fiber temperature sensor based on microwave heterodyne detection of spontaneous Brillouin power. IEEE Photonics Technology Letters, 13 (5), 511-513. (doi:10.1109/68.920769).

Record type: Article

Abstract

Single-ended distributed fiber temperature measurements using the novel technique of microwave (11 GHz) coherent detection of spontaneous Brillouin backscattered power are presented. Anti-Stokes power traces mere obtained for a sensing length of 27.4 km, believed to be the longest yet demonstrated for such spontaneous power measurements. The power dependence on temperature was measured as 0.36±0.04%/K, and the rms temperature error was less than 3.5 K at the far end of the sensing fiber.

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Published date: 2001

Identifiers

Local EPrints ID: 13687
URI: http://eprints.soton.ac.uk/id/eprint/13687
ISSN: 1041-1135
PURE UUID: 15f40590-7a65-4294-b224-6526ae9dbb03

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Date deposited: 03 Jan 2005
Last modified: 07 Jan 2022 21:59

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Contributors

Author: S.M. Maughan
Author: H.H. Kee
Author: T.P. Newson

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