Hybrid Quantum Photonic Integrated Circuits

Quantum dots embedded in photonic nanowires are a promising route for generating single photons with high efficiency [1]. Integration of such sources on-chip offers enhanced stability and miniaturization, important in many applications involving the processing of quantum information. Here we demonstrate the efficient coupling of quantum light generated in a III-V photonic nanowire to a silicon-based photonic integrated circuit. The hybrid integration is based on a “pick & place” approach using a nanomanipulator in a scanning electron microscope. We demonstrate detected count rates of 1 Mcps and single photon purities >95%.