Title :
10-GHz All-Optical Gate Based on a III–V/SOI Microdisk
Author :
Kumar, Rajesh ; Liu, Liu ; Roelkens, Gunther ; Geluk, Erik-Jan ; de Vries, Tjibbe ; Karouta, Fouad ; Regreny, Philippe ; Van Thourhout, Dries ; Baets, Roel ; Morthier, Geert
Author_Institution :
INTEC Dept., Ghent Univ., Ghent, Belgium
fDate :
7/1/2010 12:00:00 AM
Abstract :
We demonstrate an ultrafast and low-power all-optical gate in pump-probe configuration based on free-carrier- induced refractive index modulation in a 5-μm radius InP-InGaAsP microdisk heterogeneously integrated onto a silicon-on-insulator waveguide circuit. High-speed gating is obtained by extracting the carriers from the microdisk active layer by applying a reverse bias. Measured transient responses show that this gate is capable of working up to 20 GHz.
Keywords :
III-V semiconductors; gallium arsenide; high-speed optical techniques; indium compounds; integrated optics; optical logic; silicon-on-insulator; III-V/SOI microdisk; InP-InGaAsP; Si; all-optical gate; free-carrier- induced refractive index modulation; frequency 10 GHz; high-speed gating; pump-probe configuration; silicon-on-insulator waveguide; Microdisk; optical gate; silicon-on-insulator (SOI);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2010.2048895
