Title :
Solving certain leaky waveguides with lossless, simply bounded, finite element modeling
Author :
Grant, J.C. ; Beal, J.C. ; Frenette, N.J.P.
Author_Institution :
Dept. of Electr. Eng., Queen´´s Univ., Kingston, Ont., Canada
Abstract :
The implementation of the finite-element method (FEM) is much simplified when studying lossless, bounded structures. An approach is described which can accurately estimate the solution of certain leaky waveguide designs by the perturbation of a similar, simply bounded FEM model. The method is used to model the ARROW (antiresonant reflecting optical waveguide) and achieves results well within 1% of those found from the full analytical model.<>
Keywords :
finite element analysis; optical losses; optical waveguide theory; perturbation theory; ARROW; antiresonant reflecting optical waveguide; finite-element method; leaky waveguide designs; leaky waveguides; lossless finite element modelling; perturbation methods; simply bounded, finite element modeling; Analytical models; Dielectrics; Equations; Finite element methods; Impedance; Integrated optics; Optical losses; Optical waveguides; Propagation losses; Resonance;
Journal_Title :
Photonics Technology Letters, IEEE
