Compact high-speed electro-optic modulator based on a silicon photonic-crystal nanobeam cavity with gated graphene

Abstract

We propose and numerically study a compact high-speed elcctro-oplic modulator by gating graphene on a silicon photonic-crystal nanobeam cavity. 13.5-dB modulation depth. 133GHz operation speed, and 270-nm FSR are achieved in simulalions.