https://doi.org/10.1051/epjconf/202023808004
Strain Sensor from Tapered Fibres
1 CTI Renato Archer, Campinas 13069-901, Brazil
2 Dept. Eletrônica Quântica - IFGW, UNICAMP, Campinas 13083-859, Brazil
3 Centre d’Optique, Photonique et Laser, Université Laval, Québec, Canada, G1V 0A6
* Corresponding author: sergio.celaschi@cti.gov.br
Published online: 20 August 2020
A new all fibre, and low transmission loss, digital optical strain sensor is proposed. This sensor behaves as a Coaxial Mach-Zehnder interferometer. Special depressed cladding single-mode fibre DCF was tapered down to the micrometer scale presenting FSR in the nm range. The sensor is modelled to probe up to ± 0.2% strain when under expansive or compression stresses, returning 20 optical Power Transfer Turning Points (PTTP) at 1575 nm transmitted wavelength.
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
