Title :
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
fDate :
1/1/1990 12:00:00 AM
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;
Journal_Title :
Lightwave Technology, Journal of
