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Sensors 2015, 15(4), 8042-8053; doi:10.3390/s150408042

Experimental and Numerical Characterization of a Hybrid Fabry-Pérot Cavity for Temperature Sensing

1
Department of Electric and Electronic Engineering of the Public University of Navarra, 31006 Pamplona, Navarra, Spain
2
INESC P&D Brasil, 11055-300 Santos, São Paulo, Brazil
3
INESC Porto, 4150-179 Porto, Portugal
4
Competence Center of Exact Sciences and Engineering of the University of Madeira, 9000-082 Funchal, Portugal
5
University of Limoges, CNRS, Xlim, UMR7252, F-87000 Limoges, France
*
Author to whom correspondence should be addressed.
Academic Editor: Vittorio M.N. Passaro
Received: 26 January 2015 / Revised: 30 March 2015 / Accepted: 31 March 2015 / Published: 7 April 2015
(This article belongs to the Section Physical Sensors)
View Full-Text   |   Download PDF [646 KB, uploaded 8 April 2015]   |  

Abstract

A hybrid Fabry-Pérot cavity sensing head based on a four-bridge microstructured fiber is characterized for temperature sensing. The characterization of this cavity is performed numerically and experimentally in the L-band. The sensing head output signal presents a linear variation with temperature changes, showing a sensitivity of 12.5 pm/°C. Moreover, this Fabry-Pérot cavity exhibits good sensitivity to polarization changes and high stability over time. View Full-Text
Keywords: birefringence; fiber sensor; microstructured fiber; photonic crystal fiber; temperature sensor birefringence; fiber sensor; microstructured fiber; photonic crystal fiber; temperature sensor
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Lopez-Aldaba, A.; Pinto, A.M.R.; Lopez-Amo, M.; Frazão, O.; Santos, J.L.; Baptista, J.M.; Baierl, H.; Auguste, J.-L.; Jamier, R.; Roy, P. Experimental and Numerical Characterization of a Hybrid Fabry-Pérot Cavity for Temperature Sensing. Sensors 2015, 15, 8042-8053.

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