Multicore Fiber Sensors for Simultaneous Measurement of Force and Temperature

Author

Van Newkirk, Amy ; Antonio-Lopez, J. Enrique ; Salceda-Delgado, Guillermo ; Piracha, Mohammad Umar ; Amezcua-Correa, Rodrigo ; Schulzgen, Axel

Author_Institution

Coll. of Opt. & Photonics, Univ. of Central Florida, Orlando, FL, USA

Volume

27

Issue

14

fYear

2015

Firstpage

1523

Lastpage

1526

Abstract

We demonstrate a force and temperature sensor consisting of a multicore fiber (MCF) spliced between two single-mode fibers. Increasing of the sensitivity to applied force is achieved through etching of the MCF cladding, with an overall increase of 7× compared with a 125-μm MCF device, and 12× compared with a standard fiber Bragg grating (FBG). Simultaneous decoupling of force and temperature with high accuracy is demonstrated using two MCF sections with different outer diameters. This device has robust operation up to 1000 °C, making it more suitable than FBGs for extreme environments.

Keywords

fibre optic sensors; force measurement; force sensors; optical fibre cladding; optical fibre testing; temperature measurement; temperature sensors; MCF cladding; etching; fiber Bragg grating; force measurement; force sensor; multicore fiber sensors; single-mode fibers; temperature 1000 degC; temperature measurement; temperature sensor; Force; Optical fiber sensors; Sensitivity; Strain; Temperature measurement; Temperature sensors; Fiber Optics; Fiber optics; Optical Fiber Devices; Optical Fiber Sensors; optical fiber devices; optical fiber sensors;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2015.2427733

Filename

7097696