Analytical study of the microdisk´s resonant modes coupling with a waveguide based on the perturbation theory

Author

Morand, Alain ; Phan-Huy, Kien ; Desieres, Yohan ; Benech, Pierre

Author_Institution

ENSERG, Grenoble, France

Volume

22

Issue

3

fYear

2004

fDate

3/1/2004 12:00:00 AM

Firstpage

827

Lastpage

832

Abstract

An analytical method for the calculation of the coupling between a microdisk and a waveguide is presented. The theoretical analysis is based on the perturbation theory well known in integrated optics. Only whispering-gallery modes with high quality factor are considered to be propagating in this study when the microresonator is used as a laser structure. The influence of the distance disk/waveguide is investigated. These results are compared with calculations obtained with a two-dimensional finite-difference time domain needing more computational requirements. A good agreement between both methods is shown.

Keywords

cavity resonators; integrated optics; laser accessories; micro-optics; microcavities; optical waveguides; perturbation theory; coupling; integrated optics; laser structure; microdisk; microresonator; perturbation theory; quality factor; resonant modes; two-dimensional finite-difference time domain method; waveguide; whispering gallery modes; Integrated optics; Laser modes; Microcavities; Optical propagation; Optical waveguide theory; Optical waveguides; Q factor; Resonance; Waveguide theory; Whispering gallery modes;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2004.824528

Filename

1281946