Miniature multicore optical fiber vibration sensor

Optics Letters
Joel VillatoroRodrigo Amezcua-Correa

Abstract

We demonstrate a compact and versatile interferometric vibration sensor that operates in reflection mode. To build the device, a short segment of symmetric strongly coupled multicore optical fiber (MCF) is fusion spliced to a single-mode optical fiber (SMF). One end of the MCF segment is cleaved and placed in a cantilever position. Due to the SMF-MCF configuration, only two supermodes are excited in the MCF. Vibrations induce cyclic bending of the MCF cantilever which results in periodic oscillations of the reflected interference spectrum. In our device, the MCF itself is the inertial mass. The frequency range where our device is sensitive can be easily tailored from a few hertz to several kilohertz through the cantilever dimensions.

References

Nov 21, 2012·Optics Letters·Ben XuShang-Zhong Jin
Aug 1, 2014·Optics Letters·J Enrique Antonio-LopezRodrigo Amezcua-Correa
Aug 15, 2014·Optics Letters·Amy Van NewkirkAxel Schülzgen
Apr 2, 2015·Optics Letters·G Salceda-DelgadoR Amezcua Correa
Nov 14, 2015·Optics Letters·Amy Van NewkirkAxel Schülzgen
Feb 13, 2016·Optics Letters·Joel VillatoroRodrigo Amezcua-Correa
Mar 1, 2017·Sensors·Xueguang QiaoQiangzhou Rong

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Citations

Jun 6, 2019·Scientific Reports·Venugopal ArumuruRajan Jha
Oct 19, 2017·Optics Express·Joel VillatoroRodrigo Amezcua-Correa
Jul 2, 2017·Scientific Reports·Joel VillatoroRodrigo Amezcua-Correa
Feb 7, 2021·Sensors·Yingfang ZhangJianqing Li
May 1, 2021·Optics Letters·Monserrat C Alonso-MuriasJoel Villatoro

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