Quantum photonics hybrid integration platform

Journal Article · Mon Oct 26 00:00:00 EDT 2015 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4935029· OSTI ID:22485960

Murray, E.; Floether, F. F. ^[1]; Ellis, D. J. P.; Meany, T.; Shields, A. J. ^[1]; Lee, J. P. ^[1]; Griffiths, J. P.; Jones, G. A. C.; Farrer, I.; Ritchie, D. A. ^[2]

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1. Cambridge Research Laboratory, Toshiba Research Europe Limited, 208 Science Park, Milton Road, Cambridge CB4 0GZ (United Kingdom)
2. Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, Cambridge CB3 0HE (United Kingdom)

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 SiO{sub 2} 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.

• OSTI ID: 22485960
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 17 Vol. 107; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
DESIGN
EMISSION
GALLIUM ARSENIDES
INDIUM ARSENIDES
MACH-ZEHNDER INTERFEROMETER
PHOTONS
QUANTUM COMPUTERS
QUANTUM DOTS
SILICON OXIDES
WAVEGUIDES