Title :
Finite element analysis of the ARROW leaky optical waveguide
Author :
Grant, J.C. ; Beal, John C. ; Frenette, N.J.P.
Author_Institution :
Dept. of Electr. Eng., Queen´´s Univ., Kingston, Ont., Canada
fDate :
5/1/1994 12:00:00 AM
Abstract :
The implementation of the finite element method is much simplified when studying lossless, bounded structures. An approach is described which estimates the solution of a leaky waveguide, the rib ARROW (antiresonant reflecting optical waveguide), by a perturbation of the solution of a similar, but bounded, FEM model. By focusing on designs with low rib heights, the quasi-TE characteristic of the hybrid mode of interest is exploited, simplifying the solution. It is shown that lower rib heights result in lower leakage attenuation. This approach is shown to compare favorably to the effective index method
Keywords :
finite element analysis; integrated optics; optical losses; optical waveguide theory; optical waveguides; ARROW leaky optical waveguide; FEM model; antiresonant reflecting optical waveguide; bounded structures; effective index method; finite element analysis; finite element method; hybrid mode; lossless; low rib heights; lower leakage attenuation; lower rib heights; perturbation; quasi-TE characteristic; rib ARROW; Equations; Finite element methods; Integrated optics; Optical attenuators; Optical losses; Optical waveguides; Perturbation methods; Propagation losses; Slabs; Tellurium;
Journal_Title :
Quantum Electronics, IEEE Journal of
