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Proceedings Paper

Intrinsic Fabry-Pérot cavity sensor based on chemical etching of a multimode graded index fiber spliced to a single mode fiber
Author(s): Paula A. R. Tafulo; O. Frazão; P. A. S. Jorge; F. M. Araújo
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Paper Abstract

An intrinsic Fabry-Pérot cavity for high temperature and strain measurement is presented. The in-fibre cavity is formed by a chemical etched graded index optical fiber spliced to a single mode fiber. The intrinsic sensor obtained shows high sensitivity to strain (6.2 pm/με) and rather low sensitivity to temperature (0.9 pm/°C), being suitable for applications as a strain gauge at high temperature.

Paper Details

Date Published: 8 September 2010
PDF: 4 pages
Proc. SPIE 7653, Fourth European Workshop on Optical Fibre Sensors, 765311 (8 September 2010); doi: 10.1117/12.866336
Show Author Affiliations
Paula A. R. Tafulo, INESC Porto (Portugal)
O. Frazão, INESC Porto (Portugal)
P. A. S. Jorge, INESC Porto (Portugal)
F. M. Araújo, INESC Porto (Portugal)
FiberSensing (Portugal)

Published in SPIE Proceedings Vol. 7653:
Fourth European Workshop on Optical Fibre Sensors
José Luís Santos; Brian Culshaw; José Miguel López-Higuera; William N. MacPherson, Editor(s)

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