Effective-index method with built-in perturbation correction for integrated optical waveguides

Author

Chiang, Kin Seng ; Lo, Kai Ming ; Kwok, Kam Shing

Author_Institution

Dept. of Electron. Eng., City Univ. of Hong Kong, Hong Kong

Volume

14

Issue

2

fYear

1996

fDate

2/1/1996 12:00:00 AM

Firstpage

223

Lastpage

228

Abstract

It is well known that the conventional effective-index method for the analysis of rectangular-core waveguides can in general produce accurate results only when the modes of the waveguides are operated in the far-from-cutoff region. In this paper, an improved effective-index method, called the effective-index method with built-in perturbation correction, is described. This method is as efficient as the conventional method pet produces much more accurate results. Numerical examples for single waveguides and directional couplers are presented to demonstrate the accuracy of the method with results obtained from an improved Fourier decomposition method as the references

Keywords

integrated optics; optical directional couplers; optical waveguide theory; perturbation techniques; rectangular waveguides; refractive index; built-in perturbation correction; effective-index method; far-from-cutoff region; improved Fourier decomposition method; improved effective-index method; integrated optical waveguides; optical directional couplers; rectangular-core waveguides; Cities and towns; Directional couplers; Integrated optics; Optical feedback; Optical refraction; Optical variables control; Optical waveguides; Rectangular waveguides; Refractive index; Slabs;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.482267

Filename

482267