Spectral index method applied to coupled rib waveguides

27 April 1989

journal article
Published by Institution of Engineering and Technology (IET) in Electronics Letters

Vol. 25 (9) , 605-606
https://doi.org/10.1049/el:19890411

Abstract

The spectral index method is applied to closely coupled rib waveguides. Analytical expressions in terms of the propagation constant β are given for symmetric and antisymmetric polarised modes. The calculated coupling lengths are in excellent agreement with those obtained by mainframe programs.

Keywords

ANTISYMMETRIC POLARISED MODES
COUPLING LENGTHS
SPECTRAL INDEX METHOD
SYMMETRIC POLARISED MODES
OPTICAL WAVEGUIDES
COUPLED RIB WAVEGUIDES
PROPAGATION CONSTANT

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