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57km single-ended spontaneous Brillouin-based distributed fiber temperature sensor using microwave coherent detection

57km single-ended spontaneous Brillouin-based distributed fiber temperature sensor using microwave coherent detection
57km single-ended spontaneous Brillouin-based distributed fiber temperature sensor using microwave coherent detection
We present a novel technique for performing single-ended distributed fiber temperature measurements by use of microwave heterodyne detection of spontaneous Brillouin scattering. Brillouin frequency-shift measurements were obtained for a sensing length of 57km, with a spatial resolution of 20m. The rms error in frequency measurements at the far end of the sensing fiber was less than 3MHz, and the overall frequency dependence on temperature was 1.07±0.06 MHz/K.
0146-9592
331-333
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) 57km single-ended spontaneous Brillouin-based distributed fiber temperature sensor using microwave coherent detection. Optics Letters, 26 (6), 331-333. (doi:10.1364/OL.26.000331).

Record type: Article

Abstract

We present a novel technique for performing single-ended distributed fiber temperature measurements by use of microwave heterodyne detection of spontaneous Brillouin scattering. Brillouin frequency-shift measurements were obtained for a sensing length of 57km, with a spatial resolution of 20m. The rms error in frequency measurements at the far end of the sensing fiber was less than 3MHz, and the overall frequency dependence on temperature was 1.07±0.06 MHz/K.

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Published date: 2001

Identifiers

Local EPrints ID: 13694
URI: http://eprints.soton.ac.uk/id/eprint/13694
ISSN: 0146-9592
PURE UUID: accd5700-6217-4459-b236-9b9becc3681d

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Date deposited: 31 Dec 2004
Last modified: 08 Jan 2022 12:47

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Contributors

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

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