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Cross-correlation method to obtain temperature profiles from power reflection spectra of a chirped fiber Bragg grating

Kitcher, Daniel J and Nand, Anbhawa and Wade, Scott A and Baxter, Gregory W and Collins, Stephen F (2005) Cross-correlation method to obtain temperature profiles from power reflection spectra of a chirped fiber Bragg grating. In: 17th International Conference on Optical Fibre Sensors (Proc.SPIE vol.5855). SPIE, pp. 816-819. ISBN 0819458554

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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.

Item Type: Book Section
Uncontrolled Keywords: ResPubID: 9739, optical fiber, chirped grating, temperature measurement
Subjects: FOR Classification > 0906 Electrical and Electronic Engineering
Faculty/School/Research Centre/Department > School of Engineering and Science
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Depositing User: VUIR
Date Deposited: 19 Jan 2010 04:25
Last Modified: 21 Sep 2012 06:15
URI: http://vuir.vu.edu.au/id/eprint/2078
DOI: 10.1117/12.624241
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Citations in Scopus: 0 - View on Scopus

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