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Proceedings Paper

Features of coherent Rayleigh noise and its significance in Brillouin intensity based temperature sensing
Author(s): K. De Souza
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Paper Abstract

The temperature resolution of a fiber-optic distributed temperature sensor based on taking the ratio of the temperature sensitive backscattered spontaneous Brillouin signal to the corresponding Rayleigh signal depends on the optical signal-to-noise of the receiver system and the amplitude fluctuations on the Rayleigh signal. The amplitude fluctuations or coherent Rayleigh noise were investigated experimentally as a function of detection bandwidth, source bandwidth and spatial resolution and showed good agreement with theory.

Paper Details

Date Published: 23 May 2005
PDF: 4 pages
Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); doi: 10.1117/12.624245
Show Author Affiliations
K. De Souza, Univ. of the West Indies (Trinidad and Tobago)

Published in SPIE Proceedings Vol. 5855:
17th International Conference on Optical Fibre Sensors
Marc Voet; Reinhardt Willsch; Wolfgang Ecke; Julian Jones; Brian Culshaw, Editor(s)

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