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Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 22,
  • Issue 3,
  • pp. 827-
  • (2004)

Analytical Study of the Microdisk's Resonant Modes Coupling With a Waveguide Based on the Perturbation Theory

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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.

© 2004 IEEE

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