Effects of grating heights on highly efficient unibond SOI waveguide grating couplers

Author

Ang, T.W. ; Reed, G.T. ; Vonsovici, A. ; Evans, A.G.R. ; Routley, P.R. ; Josey, M.R.

Author_Institution

Sch. of Electron. Eng., Inf. Technol. & Math., Surrey Univ., Guildford, UK

Volume

12

Issue

1

fYear

2000

Firstpage

59

Lastpage

61

Abstract

We report the first successful experimental evaluation of the effect of grating height upon the output efficiency of grating couplers as predicted using perturbation theory. In addition, we have also produced a grating with an output efficiency of 70%, which is the highest efficiency yet reported for a silicon-on-insulator waveguide grating coupler.

Keywords

diffraction gratings; integrated optics; optical couplers; optical waveguide theory; perturbation theory; silicon; silicon-on-insulator; 70 percent; Si; Si-SiO/sub 2/-Si; grating couplers; grating heights; highest efficiency; highly efficient unibond SOI waveguide grating couplers; output efficiency; perturbation theory; silicon-on-insulator waveguide grating coupler; Couplers; Gratings; Integrated optics; Optical devices; Optical modulation; Optical refraction; Optical variables control; Optical waveguides; Silicon on insulator technology; Surface waves;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.817493

Filename

817493