Analysis of the coupling characteristics of a tapered coupled waveguide system

Author

Cai, Yuanmin ; Mizumoto, Tetsuya ; Naito, Yoshiyuki

Author_Institution

Dept. of Phys. Electron., Tokyo Inst. of Technol., Japan

Volume

8

Issue

1

fYear

1990

fDate

1/1/1990 12:00:00 AM

Firstpage

90

Lastpage

98

Abstract

Optical coupling characteristics between one uniform waveguide and one tapered waveguide are discussed. This coupling structure is analyzed by utilizing coupled-mode theory and system step approximation. Based on numerical investigation, various coupling characteristics are presented. It is shown that the proposed structure can be used as a waveguide-type optical power divider by selecting an appropriate taper slope for the tapered waveguide or by separating the coupled waveguides properly for a desired power-dividing ratio

Keywords

approximation theory; optical couplers; optical waveguide components; optical waveguide theory; coupled waveguide separation; coupled-mode theory; coupling characteristics; power-dividing ratio; system step approximation; taper slope; tapered coupled waveguide system; tapered waveguide; uniform waveguide; waveguide-type optical power divider; Optical coupling; Optical devices; Optical fiber networks; Optical refraction; Optical scattering; Optical sensors; Optical variables control; Optical waveguide theory; Optical waveguides; Power dividers;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.45934

Filename

45934