Title :
An asymmetric Y-branching circuit using total reflection for semiconductor integrated optical circuits
Author :
Shibata, Yasuo ; Oku, Satoshi ; Ikeda, Masahiro ; Kadota, Yoshiaki
Author_Institution :
NTT Opto-electron. Lab., Kanagawa, Japan
Abstract :
A new structure for a compact optical branching circuit is proposed. An asymmetric Y-branching circuit using total reflection is fabricated on an AlGaAs/GaAs wafer. Good branching operation is observed in a single-mode branching circuit with a branching angle of 45 degrees . The exact origins of loss in the branching circuit are also clarified.<>
Keywords :
III-V semiconductors; aluminium compounds; gallium arsenide; integrated optics; optical waveguides; reflectivity; AlGaAs-GaAs wafer; asymmetric Y-branching circuit; branching angle; compact optical branching circuit; optical losses; semiconductor integrated optical circuits; single-mode branching circuit; total reflection; Circuits; Etching; Integrated optics; Mirrors; Optical control; Optical device fabrication; Optical losses; Optical reflection; Optical waveguides; Propagation losses;
Journal_Title :
Photonics Technology Letters, IEEE
