Sensors
(Apr 2015)
Experimental and Numerical Characterization of a Hybrid Fabry-Pérot Cavity for Temperature Sensing
Aitor Lopez-Aldaba,
Ana Margarida Rodrigues Pinto,
Manuel Lopez-Amo,
Orlando Frazão,
José Luís Santos,
José Manuel Baptista,
Hardy Baierl,
Jean-Louis Auguste,
Raphael Jamier,
Philippe Roy
Affiliations
Aitor Lopez-Aldaba
Department of Electric and Electronic Engineering of the Public University of Navarra, 31006 Pamplona, Navarra, Spain
Ana Margarida Rodrigues Pinto
Department of Electric and Electronic Engineering of the Public University of Navarra, 31006 Pamplona, Navarra, Spain
Manuel Lopez-Amo
Department of Electric and Electronic Engineering of the Public University of Navarra, 31006 Pamplona, Navarra, Spain
Orlando Frazão
INESC Porto, 4150-179 Porto, Portugal
José Luís Santos
INESC Porto, 4150-179 Porto, Portugal
José Manuel Baptista
INESC Porto, 4150-179 Porto, Portugal
Hardy Baierl
University of Limoges, CNRS, Xlim, UMR7252, F-87000 Limoges, France
Jean-Louis Auguste
University of Limoges, CNRS, Xlim, UMR7252, F-87000 Limoges, France
Raphael Jamier
University of Limoges, CNRS, Xlim, UMR7252, F-87000 Limoges, France
Philippe Roy
University of Limoges, CNRS, Xlim, UMR7252, F-87000 Limoges, France
DOI
https://doi.org/10.3390/s150408042
Journal volume & issue
Vol. 15,
no. 4
Abstract
Read online
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.
Keywords
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