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Proceedings Paper

Simultaneous measurement of strain and temperature using the FBG cladding modes based on a core misaligned splice
Author(s): C. Gouveia; P. A. S. Jorge; J. M. Baptista; O. Frazão
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Paper Abstract

A fiber optic FBG cladding modes based sensor, for simultaneous measurement of strain and temperature is presented. The FBG cladding modes are efficiently excited by the large core misalignment. This technique enables the possibility to readout simultaneously in reflection the cladding mode (λcl) and the core mode (λco). λcl, λco depend on strain and temperature and show different sensibilities for each parameter, enabling their discrimination. The experimental result shows a good performance in terms of linearity and sensitivity.

Paper Details

Date Published: 26 July 2011
PDF: 4 pages
Proc. SPIE 8001, International Conference on Applications of Optics and Photonics, 80013U (26 July 2011); doi: 10.1117/12.891422
Show Author Affiliations
C. Gouveia, INESC Porto (Portugal)
P. A. S. Jorge, INESC Porto (Portugal)
J. M. Baptista, INESC Porto (Portugal)
O. Frazão, INESC Porto (Portugal)

Published in SPIE Proceedings Vol. 8001:
International Conference on Applications of Optics and Photonics
Manuel Filipe Costa, Editor(s)

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