Title :
Method of lines for the analysis of the propagation characteristics of curved optical rib waveguides
Author :
Gu, Jing-Song ; Besse, Pierre-André ; Melchior, Hans
Author_Institution :
Swiss Federal Inst. of Technol., Zurich, Switzerland
fDate :
3/1/1991 12:00:00 AM
Abstract :
A numerical technique based on the method of lines is developed for the analysis of curved optical rib waveguides. The approach yields accurate solutions for the modes of both polarizations propagating along the curved waveguides. The values of the calculated bending losses are substantiated by experimental results. The method of lines has proven to be very efficient for the solution of straight and bent waveguide problems. To improve the accuracy of the discretization, an integration technique is introduced for the matrix representation of the differential operator. By approximately matching the boundary conditions at the interfaces of the waveguides, semivectorial solutions are obtained by considering the major field component
Keywords :
bending; integration; matrix algebra; numerical methods; optical losses; optical waveguide theory; bending losses; bent waveguide problems; boundary conditions; curved optical rib waveguides; differential operator; integration technique; matrix representation; method of lines; numerical technique; optical waveguide propagation analysis; propagation characteristics; semivectorial solutions; waveguide interfaces; Electromagnetic waveguides; Optical devices; Optical losses; Optical propagation; Optical refraction; Optical variables control; Optical waveguide components; Optical waveguides; Slabs; Waveguide transitions;
Journal_Title :
Quantum Electronics, IEEE Journal of
