Title :
Optical fiber couplers: scalar supermodes and polarization corrections
Author_Institution :
Institut fuer Grundlagender Electrotechnik, Tech. Univ., Dresden, Germany
fDate :
6/1/1992 12:00:00 AM
Abstract :
Scalar field corrections of first order in weak coupling are constructed for the supermodes of couplers composed of two identical step-index optical fiber cores by a novel perturbation technique. The perturbations of the propagation constants lead to the well-known result for the scalar coupling coefficient. However, from the corrected fields the direction-dependent polarization corrections are accurately calculated for the first time, yielding accurate results for both the form birefringence, and the polarization beam splitting
Keywords :
light polarisation; optical constants; optical couplers; optical fibres; optical waveguide theory; perturbation theory; refractive index; direction-dependent polarization corrections; form birefringence; optical fibre couplers; perturbation technique; polarization beam splitting; propagation constants; scalar coupling coefficient; scalar supermodes; step-index optical fiber cores; weak coupling; Birefringence; Optical fiber couplers; Optical fiber polarization; Optical fiber theory; Optical fibers; Optical waveguide theory; Optical waveguides; Partial differential equations; Perturbation methods; Propagation constant;
Journal_Title :
Lightwave Technology, Journal of
