Title :
Rigorous effective index method for semiconductor rib waveguides
Author :
Benson, T.M. ; Bozeat, R.J. ; Kendall, P.C.
Author_Institution :
Dept. of Electr. & Electron. Eng., Nottingham Univ., UK
fDate :
2/1/1992 12:00:00 AM
Abstract :
A saddle point variational principle, for estimating the propagation constant of an optical rib waveguide mode from a discontinuous trial function, is generalised to provide a theoretical underpinning for the familiar effective index method. It is shown that better accuracy can be achieved in a rigorous manner, while maintaining much of the simplicity that makes the original effective index approach so attractive
Keywords :
optical waveguide theory; discontinuous trial function; optical rib waveguide mode; propagation constant; rigorous effective index method; saddle point variational principle; semiconductor rib waveguides;
Journal_Title :
Optoelectronics, IEE Proceedings J