Quantum photonics hybrid integration platform
Eoin Murray, David P. Ellis, Thomas Meany, Frederik F. Floether,, James P. Lee, Jonathan P. Griffiths, Geb A. C. Jones, Ian Farrer, David A., Ritchie, Anthony J. Bennett, Andrew J. Shields
TL;DR
This paper presents a hybrid integration platform combining quantum dot single photon sources with waveguide circuits for on-chip quantum photonics, enabling routing, modulation, and qubit preparation in integrated devices.
Contribution
It introduces a novel hybrid platform integrating InAs quantum dots with SiON waveguides, demonstrating on-chip quantum light routing and modulation capabilities.
Findings
Successful coupling of quantum dot emission into waveguides
On-chip Mach-Zehnder modulator for photon path control
Verification of single photon emission via Hanbury Brown and Twiss measurement
Abstract
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 an 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 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 by an on-chip Hanbury Brown and Twiss measurement.
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