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Proceedings Paper

Interrogation of a cascaded FBG sensor using a wavelength-to-delay mapping technique
Author(s): Juan Clement; Javier Hervás; Carlos R. Fernández-Pousa; David Barrera; Daniel Pastor; Salvador Sales; José Capmany
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Paper Abstract

An optical fiber sensor composed of six standard FBGs in cascade is interrogated by use of a technique based on wavelength to delay mapping. A microwave-modulated optical signal enters the FBG cascade and, after being sliced and reflected, experiences dispersion in standard single-mode fiber. The Bragg wavelengths of the FBGs are mapped into the delays that determine the peaks in the system’s electrical impulse response. The Bragg wavelength shifts are calculated from the difference of the delays undergone by FBGs samples. A resolution of 9.2 pm in Bragg wavelength shift is demonstrated.

Paper Details

Date Published: 28 September 2015
PDF: 4 pages
Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96344S (28 September 2015); doi: 10.1117/12.2194977
Show Author Affiliations
Juan Clement, Univ. Miguel Hernández (Spain)
Javier Hervás, Univ. Politécnica de Valencia (Spain)
Carlos R. Fernández-Pousa, Univ. Miguel Hernández (Spain)
David Barrera, Univ. Politècnica de València (Spain)
Daniel Pastor, Univ. Politècnica de València (Spain)
Salvador Sales, Univ. Politècnica de València (Spain)
José Capmany, Univ. Politécnica de Valencia (Spain)

Published in SPIE Proceedings Vol. 9634:
24th International Conference on Optical Fibre Sensors
Hypolito José Kalinowski; José Luís Fabris; Wojtek J. Bock, Editor(s)

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