Sensitive interferometric force sensor based on multicore optical fibre

J. Villatoro; A. van Newkirk; E. Antonio-Lopez; J. Zubia; A. Schülzgen; R. Amezcua-Correa

doi:10.1117/12.2235404

30 May 2016 Sensitive interferometric force sensor based on multicore optical fibre

J. Villatoro, A. van Newkirk, E. Antonio-Lopez, J. Zubia, A. Schülzgen, R. Amezcua-Correa

Proceedings Volume 9916, Sixth European Workshop on Optical Fibre Sensors; 99161P (2016) https://doi.org/10.1117/12.2235404
Event: Sixth European Workshop on Optical Fibre Sensors (EWOFS'2016), 2016, Limerick, Ireland

Abstract

A simple, interferometric force sensor based on a multicore optical fiber (MCF) that operates in reflection mode is presented. The device consists of a short segment of MCF inserted at the distal end of a conventional single mode optical fiber (SMF). To demonstrate the concept we used a mechanical piece with grooves to press the MCF. In this way the external force on the MCF is converted in localized pressure on the fiber which causes attenuation losses to the interfering modes and makes the interference pattern to shrink. The changes experienced by the interference pattern can be easily monitored. The sensor here proposed is highly sensitive since it can resolve forces down to 0.01 N.

Citation Download Citation

J. Villatoro, A. van Newkirk, E. Antonio-Lopez, J. Zubia, A. Schülzgen, and R. Amezcua-Correa "Sensitive interferometric force sensor based on multicore optical fibre", Proc. SPIE 9916, Sixth European Workshop on Optical Fibre Sensors, 99161P (30 May 2016); https://doi.org/10.1117/12.2235404

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