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81 km temperature sensor based on spontaneous Brillouin scattering and coherent detection

81 km temperature sensor based on spontaneous Brillouin scattering and coherent detection
81 km temperature sensor based on spontaneous Brillouin scattering and coherent detection
We present the longest reported sensing range of temperature change measurement along single-ended optical sensing fibre. The technique is based on spontaneous Brillouin scattering and microwave heterodyne detection. Brillouin frequency shift was used to obtain temperature change at range of 81km with temperature error less than 5C, and spatial resolution of 30m, at relatively low input pulse power of 70mW.
Alahbabi, M.
af0e27e4-b558-49d1-8657-8daa279eb590
Cho, Y.T.
eea77b90-e7f3-4496-9637-721dfe8fb5a4
Newson, T.P.
6735857e-d947-45ec-8163-54ebb25daad7
Alahbabi, M.
af0e27e4-b558-49d1-8657-8daa279eb590
Cho, Y.T.
eea77b90-e7f3-4496-9637-721dfe8fb5a4
Newson, T.P.
6735857e-d947-45ec-8163-54ebb25daad7

Alahbabi, M., Cho, Y.T. and Newson, T.P. (2003) 81 km temperature sensor based on spontaneous Brillouin scattering and coherent detection. 2003 Photonex Exhibition. 08 - 09 Oct 2003. 9 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

We present the longest reported sensing range of temperature change measurement along single-ended optical sensing fibre. The technique is based on spontaneous Brillouin scattering and microwave heterodyne detection. Brillouin frequency shift was used to obtain temperature change at range of 81km with temperature error less than 5C, and spatial resolution of 30m, at relatively low input pulse power of 70mW.

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Published date: 2003
Venue - Dates: 2003 Photonex Exhibition, 2003-10-08 - 2003-10-09

Identifiers

Local EPrints ID: 41569
URI: https://eprints.soton.ac.uk/id/eprint/41569
PURE UUID: 129ed2de-b235-4ddc-9ee3-53ee705b0770

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Date deposited: 03 Oct 2006
Last modified: 17 Jul 2017 15:29

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