Title :
Geometrical birefringence in fibres with D-shaped hole
Author_Institution :
Univ. of Sci. & Technol. of China, Anhui, China
Abstract :
Geometrical birefringence in fibres with a D-shaped hole has been investigated in detail by vectorial wave analysis using the improved finite-element method (FEM) in terms of all three components of the magnetic field. A dependence of the modal birefringence on normalised frequency and geometrical parameters is obtained. The highest modal birefringence is found to be about 4.5*10-5. This fibre can therefore maintain a single polarisation state to some degree.
Keywords :
birefringence; finite element analysis; light polarisation; optical fibres; optical waveguide theory; D-shaped hole; FEM; finite-element method; geometrical parameters; magnetic field; modal birefringence; normalised frequency; optical fibres; polarisation-maintaining fibres; single polarisation state; vectorial wave analysis;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19891057
