Abstract

All-optical logic operation is theoretically demonstrated by means of polarization-dependent four-wave mixing (FWM) processes in a highly nonlinear silicon hybrid plasmonic waveguide (HPWG) microring resonator. We design an ultra-compact (radii=1μm) microring resonator (MRR) that is realized by using a silicon HPWG with the capacity for subwavelength-bending. The HPWG exhibits very high confinement (Aeff0.045μm2) that can result in a remarkably high nonlinear parameter (γ3000W1m1), given a highly nonlinear gap material. By manipulating the polarization properties of the pump and signals with a very low electric field (|E|108Vm1), all-optical NOT, NOR, and NAND logical operations are obtained through the FWM process. These compact all-optical nanoplasmonic devices are stable, fabrication simplified, and silicon on insulator (SOI) compatible.

© 2015 Optical Society of America

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