Highly Sensitive LPFG-Based Bending Sensor in W-Type Optical Fiber

Author

Taghipour, Ata ; Janabi-Sharifi, Farrokh Taghipour ; Rostami, Ali

Author_Institution

Dept. of Mech. & Ind. Eng., Ryerson Univ., Toronto, ON, Canada

fYear

2014

Firstpage

280

Lastpage

282

Abstract

Simulation results reveal that bending sensitivity of LPFG-based bending sensor in ordinary single-clad optical fiber is almost 15nm/m^-1, while this quantity for LPFG-based bending sensor in double-clad W-type optical fiber reaches to 21nm/m^-1. This 40% enhancement of bending sensitivity is related to more difference between cladding modes´ effective refractive indices in W-type optical fiber rather than ordinary single-clad optical fiber.

Keywords

bending; diffraction gratings; fibre optic sensors; optical fibre cladding; refractive index; sensitivity; W-Type optical fiber; bending sensitivity; cladding mode effective refractive indices; double-clad W-type optical fiber; highly sensitive LPFG-based bending sensor; long period fibre grating; ordinary single-clad optical fiber; Fiber gratings; Finite element analysis; Modal analysis; Optical fiber sensors; Optical fibers; Refractive index; Sensitivity; LPFG-based bending sensor; W-type optical fiber; bending sensitivity;

fLanguage

English

Publisher

ieee

Conference_Titel

Optomechatronic Technologies (ISOT), 2014 International Symposium on

Type

conf

DOI

10.1109/ISOT.2014.75

Filename

7119439

Link To Document

https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3592052