Pressure sensitivity of side-hole optical fiber sensors

Author

Clowes, J.R. ; Syngellakis, S. ; Zervas, M.N.

Author_Institution

Optoelectron. Res. Centre, Southampton Univ., UK

Volume

10

Issue

6

fYear

1998

fDate

6/1/1998 12:00:00 AM

Firstpage

857

Lastpage

859

Abstract

The dependency of the pressure-induced birefringence of a side-hole fiber on its geometry has been numerically investigated using the finite element method. We demonstrate that the pressure sensitivity of such a fiber shows a linear dependence on /spl phi//sup 2/, where /spl phi/ is the angle between the side hole center and core center axis and the core center to side-hole tangent. Experimental data obtained with two different side-hole fiber sensors are shown to agree extremely well (to within 10%) with theoretical predictions.

Keywords

birefringence; fibre optic sensors; finite element analysis; geometry; pressure measurement; sensitivity; core center axis; finite element method; geometry; linear dependence; optical fibre theory; pressure sensitivity; pressure-induced birefringence; side hole center; side-hole optical fiber sensor; side-hole tangent; Acoustic sensors; Birefringence; Finite element methods; Geometrical optics; Geometry; Optical fiber polarization; Optical fiber sensors; Optical fiber testing; Optical fiber theory; Pressure measurement;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.681509

Filename

681509