Title :
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
fDate :
6/1/1998 12:00:00 AM
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;
Journal_Title :
Photonics Technology Letters, IEEE
