The design of multimode interference couplers with arbitrary power splitting ratios on an SOI platform

Author

Le, Thanh T. ; Cahill, Laurence W.

Author_Institution

Dept. of Electron. Eng., La Trobe Univ., Melbourne, VIC

fYear

2008

Firstpage

378

Lastpage

379

Abstract

A method for obtaining variable power splitting ratios using multimode interference couplers is presented. The method relies on etching the surface on either the top of the MMI coupler or on the linking waveguides. Devices have been designed for the silicon on insulator (SOI) platform. The 3D beam propagation method (3D-BPM) and the full-vectorial finite difference method (FV-FDM) are used to verify the working principle of the devices and to evaluate performance.

Keywords

finite difference methods; integrated optics; light propagation; optical beam splitters; optical couplers; silicon-on-insulator; 3D beam propagation method; SOI platform; full vectorial finite difference method; multimode interference coupler; silicon-on-insulator; variable power splitting ratio; Couplers; Etching; Fabrication; Interference; Joining processes; Optical resonators; Optical waveguides; Refractive index; Silicon on insulator technology; Surface waves; Integrated optics; multimode interference (MMI) couplers; optical logic gates;

fLanguage

English

Publisher

ieee

Conference_Titel

IEEE Lasers and Electro-Optics Society, 2008. LEOS 2008. 21st Annual Meeting of the

Conference_Location

Acapulco

Print_ISBN

978-1-4244-1931-9

Electronic_ISBN

978-1-4244-1932-6

Type

conf

DOI

10.1109/LEOS.2008.4688648

Filename

4688648