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Eliminating spurious modes in finite-element waveguide problems by using divergence-free fields

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2 Author(s)
Kobelansky, A.J. ; McGill University, Computational Analysis & Design Laboratory Department of Electrical Engineering, Montreal, Canada ; Webb, J.P.

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.

Published in:

Electronics Letters  (Volume:22 ,  Issue: 11 )