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Proceedings Paper

Enhancing temperature sensing features of FBGs by use of thin film aluminium coating
Author(s): Michele A. Caponero; Francesca Bonfigli; Stefano Libera; Andrea Polimadei; Maria A. Vincenti; Alessandro Zini; Rosa M. Montereali
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Paper Abstract

In this work we tested use of thin film aluminium coating to enhance the temperature sensing features of FBG sensors. Thin film coating was evaporated on the Bragg grating after removal of the original acrylate recoating, using a modified vacuum evaporation system that allows uniform radial deposition around the fibre. Results show that recoating thickness up to 0.5 μm do not produce appreciable effects, whereas thickness of 2.3 μm appreciably increases temperature sensitivity without increasing time response constant.

Paper Details

Date Published: 20 May 2013
PDF: 4 pages
Proc. SPIE 8794, Fifth European Workshop on Optical Fibre Sensors, 87943R (20 May 2013); doi: 10.1117/12.2026826
Show Author Affiliations
Michele A. Caponero, ENEA (Italy)
Francesca Bonfigli, ENEA (Italy)
Stefano Libera, ENEA (Italy)
Andrea Polimadei, ENEA (Italy)
Maria A. Vincenti, ENEA (Italy)
Alessandro Zini, ENEA (Italy)
Rosa M. Montereali, ENEA (Italy)

Published in SPIE Proceedings Vol. 8794:
Fifth European Workshop on Optical Fibre Sensors
Leszek R. Jaroszewicz, Editor(s)

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