Coupling Analysis in Concentric Ring Waveguides

Author

Torres, Juana ; Baptista, A. ; Machado, V.M.

Author_Institution

Electr. & Comput. Eng. Dept., Tech. Univ., Lisbon, Portugal

Volume

31

Issue

13

fYear

2013

fDate

1-Jul-13

Firstpage

2140

Lastpage

2145

Abstract

Coupled mode theory in dielectric waveguides has been studied for parallel waveguides and for non-parallel waveguides, among bent and straight optical waveguides between two non-concentric bent waveguides or even between concentric ring waveguides. The last case is treated in this work. Results are compared to those obtained by using the finite element method (FEM). We studied the influence of the curvature radius, the separation distance between the waveguides and the refractive index of the inner waveguide in the energy transfer between waveguides. In particular, the mechanism of energy transfer between concentric waveguides was analyzed.

Keywords

circular waveguides; coupled mode analysis; finite element analysis; optical waveguide theory; refractive index; FEM; concentric ring waveguides; coupled mode theory; coupling analysis; dielectric waveguides; energy transfer; finite element method; inner waveguide; refractive index; separation distance; Couplings; Energy exchange; Equations; Optical waveguide theory; Refractive index; Coupled mode theory; concentric ring;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2013.2263633

Filename

6521344