Integrated Orbital Angular Momentum Quantum Photonics

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Harnessing the quantum mechanical properties of light is an appealing approach to developing future quantum technologies for applications in communications, sensing, simulation and computation. Integrated quantum photonics waveguide circuits and orbital angular momentum are two promising but disparate fields of quantum photonic research that hold great potential for the development of future quantum photonic technologies. Integrated quantum photonic (IQP) waveguide circuits control and manipulate light propagating within mm-sized waveguide circuits, whereas the orbital angular moment (OAM) degree-of-freedom of the photon enables efficient communication of quantum information through the generation of high-dimensional entangled qu-dits propagating in free-space.This research project aims to merge these two seemingly incompatible technologies to realised integrated quantum photonic waveguide circuits that can generate, manipulate and detect OAM states of light for chip-to-chip transfer of quantum information. This new integration technology will harness the advantages of both IQP and OAM to develop new applications in quantum communications, distributed quantum information processing, generation of high-dimensional entanglement and hyper-entanglement, quantum key distribution and the investigation of fundamental science.