Multimode interference as a tool for fiber sensing

J. L. Santos; Susana Silva; L. A. Ferreira; F. M. Araújo; O. Frazão

doi:10.1117/12.919974

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4 May 2012 Multimode interference as a tool for fiber sensing

J. L. Santos, Susana Silva, L. A. Ferreira, F. M. Araújo, O. Frazão

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Proceedings Volume 8370, Fiber Optic Sensors and Applications IX; 83700B (2012) https://doi.org/10.1117/12.919974
Event: SPIE Defense, Security, and Sensing, 2012, Baltimore, Maryland, United States

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.

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J. L. Santos, Susana Silva, L. A. Ferreira, F. M. Araújo, and O. Frazão "Multimode interference as a tool for fiber sensing", Proc. SPIE 8370, Fiber Optic Sensors and Applications IX, 83700B (4 May 2012); https://doi.org/10.1117/12.919974

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