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Proceedings Paper

Application of the fast Fourier transform and parametric frequency estimation for the measurement of the Bragg wavelength of interferometrically interrogated fiber Bragg grating sensors
Author(s): S. Diaz; Cesar Jauregui; Manuel Lopez-Amo; Jose Miguel Lopez-Higuera
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Paper Abstract

A theoretical investigation on two techniques for the interrogation of fiber Bragg gratings (FBG) is reported. We compare two methods for decoding the Bragg wavelengths of gratings: the Fast Fourier Transform (FFT) processing and a parametric frequency estimation method called MUSIC. Results demonstrate that the second technique has advantages over the first one.

Paper Details

Date Published: 9 June 2004
PDF: 4 pages
Proc. SPIE 5502, Second European Workshop on Optical Fibre Sensors, (9 June 2004); doi: 10.1117/12.566672
Show Author Affiliations
S. Diaz, Univ. Publica de Navarra (Spain)
Cesar Jauregui, Univ. de Cantabria (Spain)
Manuel Lopez-Amo, Univ. Publica de Navarra (Spain)
Jose Miguel Lopez-Higuera, Univ. de Cantabria (Spain)


Published in SPIE Proceedings Vol. 5502:
Second European Workshop on Optical Fibre Sensors
Jose Miguel Lopez-Higuera; Brian Culshaw, Editor(s)

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