Title :
Spectral index method applied to coupled rib waveguides
Author_Institution :
Dept. of Electron. & Electr. Eng., Sheffield Univ., UK
fDate :
4/27/1989 12:00:00 AM
Abstract :
The spectral index method is applied to closely coupled rib waveguides. Analytical expressions in terms of the propagation constant beta are given for symmetric and antisymmetric polarised modes. The calculated coupling lengths are in excellent agreement with those obtained by mainframe programs.
Keywords :
optical waveguide theory; optical waveguides; antisymmetric polarised modes; coupled rib waveguides; coupling lengths; optical waveguides; propagation constant; spectral index method; symmetric polarised modes;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19890411
