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A theoretical comparison of spontaneous Raman and Brillouin based fibre optic distributed temperature sensors

Wait, P.C., de Souza, K. and Newson, T.P. (1997) A theoretical comparison of spontaneous Raman and Brillouin based fibre optic distributed temperature sensors Optics Communications, 144, (1-3), pp. 17-23. (doi:10.1016/S0030-4018(97)00482-3).

Record type: Article

Abstract

Present day commercially available fibre optic distributed temperature sensors exploit the temperature dependence of spontaneous Raman scattering. Spontaneous Brillouin scattering is also temperature dependent and provides a signal which is an order of magnitude greater. Advances in narrow bandwidth pulsed laser technology and low loss all fibre filters allow the Brillouin signal to be separated from the Rayleigh signal. Theoretical analysis now demonstrates that distributed temperature sensing based on Brillouin scattering offers considerably increased range beyond the theoretical limit of the spontaneous Raman based sensor.

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Published date: 1997
Organisations: Optoelectronics Research Centre

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Local EPrints ID: 255021
URI: http://eprints.soton.ac.uk/id/eprint/255021
ISSN: 0030-4018
PURE UUID: d26fb5d4-dc58-499f-a099-5ca518b0d165

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Date deposited: 02 Apr 2001
Last modified: 18 Jul 2017 09:51

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Contributors

Author: P.C. Wait
Author: K. de Souza
Author: T.P. Newson

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