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Quantum photonics hybrid integration platform

Murray, E., Ellis, D. J. P., Meany, T., Floether, F. F., Lee, J. P., Griffiths, J. P., Jones, G. A. C., Farrer, I., Ritchie, D. A., Bennett, Anthony and Shields, A. J. 2015. Quantum photonics hybrid integration platform. Applied Physics Letters 107 (17) , 171108. 10.1063/1.4935029

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Fundamental to integrated photonic quantum computing is an on-chip method for routing and modulating quantum light emission. We demonstrate a hybrid integration platform consisting of arbitrarily designed waveguide circuits and single-photon sources. InAs quantum dots (QD) embedded in GaAs are bonded to a SiON waveguide chip such that the QD emission is coupled to the waveguide mode. The waveguides are SiON core embedded in a SiO2 cladding. A tuneable Mach Zehnder interferometer (MZI) modulates the emission between two output ports and can act as a path-encoded qubit preparation device. The single-photon nature of the emission was verified using the on-chip MZI as a beamsplitter in a Hanbury Brown and Twiss measurement.

Item Type: Article
Date Type: Published Online
Status: Published
Schools: Engineering
Uncontrolled Keywords: Quantum dots; III-V semiconductors; Photonic crystal waveguides; Photons; Photonics
Publisher: American Institute of Physics
ISSN: 0003-6951
Date of Acceptance: 21 October 2015
Last Modified: 08 Dec 2017 12:21

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