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Proceedings Paper

Cross-correlation method to obtain temperature profiles from power reflection spectra of a chirped fiber Bragg grating
Author(s): Daniel J. Kitcher; Anbhawa Nand; Scott A. Wade; Gregory W. Baxter; Stephen F. Collins
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Paper Abstract

A method of determining the temperature profile along a short length of optical fiber containing a chirped grating is presented. This provides an alternative to the known method of integrating differences between power-only reflectance spectra to recover a distributed measurement of temperature or strain within a chirped grating without the additional equipment requirements of a phase spectrum measurement. In contrast to other methods of processing the spectra of chirped gratings, the windowed cross-correlation method monitors local wavelength shifts directly, and offers immunity to spurious temperature or strain gradients arising from amplitude measurement errors.

Paper Details

Date Published: 23 May 2005
PDF: 4 pages
Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); doi: 10.1117/12.624241
Show Author Affiliations
Daniel J. Kitcher, Victoria Univ. (Australia)
Anbhawa Nand, Victoria Univ. (Australia)
Scott A. Wade, Monash Univ. (Australia)
Gregory W. Baxter, Victoria Univ. (Australia)
Stephen F. Collins, Victoria Univ. (Australia)

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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