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Proceedings Paper

Modal interferometer based on a single non-adiabatic fibre taper
Author(s): O. Frazão; P. Caldas; J. L. Santos; F. M. Araújo; L. A. Ferreira
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Paper Abstract

In this work it is presented a novel in-fibre modal interferometer based on a non-adiabatic biconical fused taper that couples light between the cladding and the core, combined with the Fresnel reflection at the fibre end. It is observed that the returned light from this fibre structure shows a channelled spectrum similar to that of a two-wave Michelson interferometer. The application of this device as a fibre optic flowmeter sensor is demonstrated.

Paper Details

Date Published: 2 July 2007
PDF: 4 pages
Proc. SPIE 6619, Third European Workshop on Optical Fibre Sensors, 66192G (2 July 2007); doi: 10.1117/12.738582
Show Author Affiliations
O. Frazão, INESC Porto (Portugal)
P. Caldas, INESC Porto (Portugal)
Univ. do Porto (Portugal)
Escola Superior de Tecnologia e Gestão de Viana do Castelo (Portugal)
J. L. Santos, INESC Porto (Portugal)
Univ. do Porto (Portugal)
F. M. Araújo, INESC Porto (Portugal)
L. A. Ferreira, INESC Porto (Portugal)

Published in SPIE Proceedings Vol. 6619:
Third European Workshop on Optical Fibre Sensors

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