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Proceedings Paper

Multimode interference as a tool for fiber sensing
Author(s): J. L. Santos; Susana Silva; L. A. Ferreira; F. M. Araújo; O. Frazão
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Paper Abstract

Fiber optic modal interferometry has been around as a sensing concept since the outcome of fiber optic sensing. Initially supported by the utilization of standard Hi-Bi fibres associated to polarimetric modal interference, later this sensing approach evolved to modal interference based on spatial modes propagating in the core, on spatial modes propagating in the core and in the cladding with coupling performed by fibre devices such as long period gratings and tapers, and more recently on several types of modes propagating in photonic crystal fibers. This paper will address fiber optic sensing based on modal interferometry, and configurations of different type researched in last years will be presented and their performance compared.

Paper Details

Date Published: 4 May 2012
PDF: 12 pages
Proc. SPIE 8370, Fiber Optic Sensors and Applications IX, 83700B (4 May 2012);
Show Author Affiliations
J. L. Santos, INESC Porto (Portugal)
Univ. do Porto (Portugal)
Susana Silva, INESC Porto (Portugal)
Univ. do Porto (Portugal)
L. A. Ferreira, INESC Porto (Portugal)
F. M. Araújo, INESC Porto (Portugal)
O. Frazão, INESC Porto (Portugal)

Published in SPIE Proceedings Vol. 8370:
Fiber Optic Sensors and Applications IX
Henry H. Du; Gary Pickrell; Eric Udd, Editor(s)

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