Temperature profile measurements within a chirped fiber Bragg grating using a Fourier transform technique
Nand, Anbhawa and Kitcher, Daniel J and Wade, Scott A and Baxter, Gregory W and Collins, Stephen F (2005) Temperature profile measurements within a chirped fiber Bragg grating using a Fourier transform technique. In: 17th International Conference on Optical Fibre Sensors (Proc.SPIE vol.5855). SPIE, pp. 820-823. ISBN 0819458554Full text for this resource is not available from the Research Repository.
The use of reflected power spectra arising from a chirped fiber Bragg grating (CFBG) to extract a nonuniform temperature distribution along the grating has been investigated. The technique uses a discrete Fourier transform (FFT) in which the measured spectrum of the CFBG due to a localised temperature change was simulated using the FFT grating design model. The model operated on the reference spectrum and hypothesis temperature distributions, T(z), to generate a spectrum representative of a localised temperature disturbance. The simulated spectrum was fitted to the measured spectrum using a three-parameter disturbance function operating on position, width and amplitude of temperature change. The rms deviation of the applied value for position of a localised temperature change was 0.14 mm.
|Item Type:||Book Section|
|Uncontrolled Keywords:||ResPubID: 9741, chirped fiber Bragg grating, Fourier transform, reference spectrum, hypothesis temperature, temperature measurement|
|Subjects:||FOR Classification > 0906 Electrical and Electronic Engineering
Faculty/School/Research Centre/Department > School of Engineering and Science
|Date Deposited:||19 Jan 2010 04:48|
|Last Modified:||21 Sep 2012 06:05|
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|Citations in Scopus:||2 - View on Scopus|
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