Modal interferometer based on a single non-adiabatic fibre taper

O. Frazão; P. Caldas; J. L. Santos; F. M. Araújo; L. A. Ferreira

doi:10.1117/12.738582

2 July 2007 Modal interferometer based on a single non-adiabatic fibre taper

O. Frazão, P. Caldas, J. L. Santos, F. M. Araújo, L. A. Ferreira

Proceedings Volume 6619, Third European Workshop on Optical Fibre Sensors; 66192G (2007) https://doi.org/10.1117/12.738582
Event: Third European Workshop on Optical Fibre Sensors, 2007, Napoli, Italy

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.

Citation Download Citation

O. Frazão, P. Caldas, J. L. Santos, F. M. Araújo, and L. A. Ferreira "Modal interferometer based on a single non-adiabatic fibre taper", Proc. SPIE 6619, Third European Workshop on Optical Fibre Sensors, 66192G (2 July 2007); https://doi.org/10.1117/12.738582

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