Sensitive interferometric force sensor based on multicore optical fibre

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations


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.

Original languageEnglish (US)
Title of host publicationSixth European Workshop on Optical Fibre Sensors
EditorsElfed Lewis
ISBN (Electronic)9781510602199
StatePublished - 2016
Event6th European Workshop on Optical Fibre Sensors - Limerick, Ireland
Duration: May 31 2016Jun 3 2016

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


Conference6th European Workshop on Optical Fibre Sensors

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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