Coupled-mode formulation for double-strip NRD waveguides based on singular perturbation technique

Author

Watanabe, Koki ; Yasumoto, Kiyotoshi

Author_Institution

Dept. of Comput. Sci. & Commun. Eng., Kyushu Univ., Fukuoka, Japan

Volume

2

fYear

1998

fDate

15-17 Sep 1998

Firstpage

589

Abstract

Analyzes a double-strip NRD waveguide by using the coupled-mode formulation based on singular perturbation technique. The results of the present formulation are in good agreement with the exact one, and the error rates decrease according to the successive order of perturbation. Also, we compared the results with those of conventional and improved theory and it is shown that the present formulation with second-order corrections is superior to both CCMT and ICMT. The analytical steps of the present formulation are straightforward, and therefore the coupled-equations are systematically derived in respective order of perturbation

Keywords

coupled mode analysis; nonradiative dielectric waveguides; perturbation techniques; waveguide theory; coupled-mode formulation; double-strip NRD waveguides; error rates; second-order corrections; singular perturbation technique; successive order of perturbation; Conductors; Dielectrics; Equations; Optical coupling; Optical waveguides; Permittivity; Perturbation methods; Strips; Wave functions; Waveguide theory;

fLanguage

English

Publisher

ieee

Conference_Titel

Physics and Engineering of Millimeter and Submillimeter Waves, 1998. MSMW '98. Third International Kharkov Symposium

Conference_Location

Kharkov

Print_ISBN

0-7803-5553-9

Type

conf

DOI

10.1109/MSMW.1998.755524

Filename

755524