Strain and Temperature Discrimination Using Modal Interferometry in Bragg Fibers

The strain and temperature sensing characteristics of a modal interferometer based on two Bragg fibers have been investigated. The special nature of this sensor is that the two Bragg fibers used present a different external cladding shape. It appears that the sensitivity to the sensing parameters ar...

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Bibliographic Details
Published in:IEEE photonics technology letters 2010-11, Vol.22 (21), p.1616-1618
Main Authors: Frazao, O, Amaral, L M N, Baptista, J M, Roy, P, Jamier, R, Février, Sébastien
Format: Article
Language:English
Subjects:
Bragg fiber
interferometer
modal interferometry
Optical fiber dispersion
Optical fiber polarization
Optical fiber sensors
Strain
strain and temperature measurement
Temperature measurement
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Summary:The strain and temperature sensing characteristics of a modal interferometer based on two Bragg fibers have been investigated. The special nature of this sensor is that the two Bragg fibers used present a different external cladding shape. It appears that the sensitivity to the sensing parameters are different for the two Bragg fibers, which makes it possible to fabricate several sensing configurations based on the combination of these two Bragg fibers for strain and temperature discrimination.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2010.2076357