Independent indistinguishable quantum light sources on a reconfigurable photonic integrated circuit

Abstract

We report a compact, scalable, quantum photonic integrated circuit realised by combining multiple, independent InGaAs/GaAs quantum-light-emitting-diodes (QLEDs) with a silicon oxynitride waveguide circuit. Each waveguide joining the circuit can then be excited by a separate, independently electrically contacted QLED. We show that the emission from neighbouring QLEDs can be independently tuned to degeneracy using the Stark Effect and that the resulting photon streams are indistinguishable. This enables on-chip Hong-Ou-Mandel-type interference, as required for many photonic quantum information processing schemes.

arXiv comment15 pages, 5 figures

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• 8x8 Reconfigurable quantum photonic processor based on silicon nitride waveguides
• Super-radiant emission from quantum dots in a nanophotonic waveguide
• Fully on-chip single-photon Hanbury-Brown and Twiss experiment on a monolithic semiconductor-superconductor platform
• Purcell enhanced and indistinguishable single-photon generation from quantum dots coupled to on-chip integrated ring resonators
• Integrated Single Photon Emitters
• Monolithic integration of single photon sources via evanescent coupling of tapered InP nanowires to SiN waveguides
• Towards a source of multi-photon entangled states for linear optical quantum computing
• In-situ wavelength tuning of quantum-dot single-photon sources integrated on a CMOS silicon chip
• Large Stark Tuning of InAs/InP Quantum Dots
• Independent operation of two waveguide-integrated quantum emitters
• A silicon photonic add-drop filter for quantum emitters
• Scalable multiphoton generation from cavity-synchronized single-photon sources