Simultaneous measurement of strain and temperature using the FBG cladding modes based on a core misaligned splice

C. Gouveia; P. A. S. Jorge; J. M. Baptista; O. Frazão

doi:10.1117/12.891422

26 July 2011 Simultaneous measurement of strain and temperature using the FBG cladding modes based on a core misaligned splice

C. Gouveia, P. A. S. Jorge, J. M. Baptista, O. Frazão

Author Affiliations +

Proceedings Volume 8001, International Conference on Applications of Optics and Photonics; 80013U (2011) https://doi.org/10.1117/12.891422
Event: International Conference on Applications of Optics and Photonics, 2011, Braga, Portugal

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 (λ_cl) and the core mode (λ_co). λ_cl, λ_co 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.

Citation Download Citation

C. Gouveia, P. A. S. Jorge, J. M. Baptista, and O. Frazão "Simultaneous measurement of strain and temperature using the FBG cladding modes based on a core misaligned splice", Proc. SPIE 8001, International Conference on Applications of Optics and Photonics, 80013U (26 July 2011); https://doi.org/10.1117/12.891422

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