System performance of slow-light buffering and storage in silicon nano-waveguide

Abstract

We experimentally demonstrate optically tunable buffer in a nano-scale silicon microring resonator with a 20-μm radius. The delay-tuning mechanism is based on the red shift of the resonance induced by the thermal nonlinear effect. We use a non-return-to-zero (NRZ) pseudo random bit sequence (PRBS) signal with different data rates as the probe signal, and investigate its delay performance under different pump powers.