Title :
Eliminating spurious modes in finite-element waveguide problems by using divergence-free fields
Author :
Kobelansky, A.J. ; Webb, Jon P.
Author_Institution :
McGill University, Computational Analysis & Design Laboratory Department of Electrical Engineering, Montreal, Canada
Abstract :
Spurious solutions in the finite-element analysis of the modes of waveguides and optical fibres are completely eliminated by the use of fields which are exactly divergence-free. Such fields are themselves computed by the finite-element method.
Keywords :
finite element analysis; optical fibres; optical waveguide theory; waveguide theory; divergence-free fields; finite-element analysis; finite-element waveguide problems; optical fibres; spurious modes elimination; spurious solutions elimination;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19860387
