Bistable Photon Pair Generation in Silicon Microring Resonator Integrated with Pump Rejection Filter

On-chip photon pair generation is the key to the development of scalable quantum photonic integrated circuits. We report bistable generation of entangled photon pairs via spontaneous four wave mixing in a silicon microring resonator integrated with pump rejection filter (> 45dB). The observed photon generation rate exceeds 20 MHz in one of the bistable states for a launched input power of ~0.75 mW in C band.