On-chip III-V monolithic integration of heralded single photon sources and beamsplitters

J. Belhassen; F. Baboux; Q. Yao; M. Amanti; I. Favero; A. Lemaître; W. S. Kolthammer; I. A. Walmsley; S. Ducci

doi:10.1063/1.5015951

On-chip III-V monolithic integration of heralded single photon sources and beamsplitters

J. Belhassen
, F. Baboux
, Q. Yao
, M. Amanti
, I. Favero
, A. Lemaître
, W. S. Kolthammer
, I. A. Walmsley
, S. Ducci

Research output: Contribution to journal › Article › peer-review

22 Scopus citations

Abstract

We demonstrate a monolithic III-V photonic circuit combining a heralded single photon source with a beamsplitter, at room temperature and telecom wavelength. Pulsed parametric down-conversion in an AlGaAs waveguide generates counterpropagating photons, one of which is used to herald the injection of its twin into the beamsplitter. We use this configuration to implement an integrated Hanbury-Brown and Twiss experiment, yielding a heralded second-order correlation gher(2)(0)=0.10±0.02 that confirms single-photon operation. The demonstrated generation and manipulation of quantum states on a single III-V semiconductor chip opens promising avenues towards real-world applications in quantum information.

Original language	English
Article number	071105
Journal	Applied Physics Letters
Volume	112
Issue number	7
DOIs	https://doi.org/10.1063/1.5015951
State	Published - 12 Feb 2018
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2018 Author(s).

Funding

We thank G. Boucher and Y. Halioua for their contribution to the early stage of this project. We acknowledge support from Délégation Générale de l’Armement (funding of J. Belhassen), Agence Nationale de la Recherche (project SEMIQUANTROOM), Région Ile-de-France in the framework of the C’Nano DIM NanoK (project SPATIAL), the Fondation Franco-Chinoise pour les Sciences et Applications (FFCSA), the European Research Council (ERC) through the Ganoms Project (No. 306664), and the French RENATECH network. I.A.W. acknowledges support from the EU via an ERC Advanced Grant (MOQUACINO). I.A.W and W.S.K. were also funded by the UK Engineering and Physical Sciences Research Council through Programme Grant No. EP/K034480/1, and the EPSRC NQIT Quantum Technology Hub.

Funders	Funder number
Délégation Générale de l’Armement
EPSRC NQIT
Fondation Franco-Chinoise pour les Sciences et Applications
French RENATECH network
Région Ile-de-France
Engineering and Physical Sciences Research Council	EP/K034480/1
European Commission
European Commission	306664
Agence Nationale de la Recherche

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10.1063/1.5015951

Cite this

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abstract = "We demonstrate a monolithic III-V photonic circuit combining a heralded single photon source with a beamsplitter, at room temperature and telecom wavelength. Pulsed parametric down-conversion in an AlGaAs waveguide generates counterpropagating photons, one of which is used to herald the injection of its twin into the beamsplitter. We use this configuration to implement an integrated Hanbury-Brown and Twiss experiment, yielding a heralded second-order correlation gher(2)(0)=0.10±0.02 that confirms single-photon operation. The demonstrated generation and manipulation of quantum states on a single III-V semiconductor chip opens promising avenues towards real-world applications in quantum information.",

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AU - Baboux, F.

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AU - Favero, I.

AU - Lemaître, A.

AU - Kolthammer, W. S.

AU - Walmsley, I. A.

AU - Ducci, S.

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AB - We demonstrate a monolithic III-V photonic circuit combining a heralded single photon source with a beamsplitter, at room temperature and telecom wavelength. Pulsed parametric down-conversion in an AlGaAs waveguide generates counterpropagating photons, one of which is used to herald the injection of its twin into the beamsplitter. We use this configuration to implement an integrated Hanbury-Brown and Twiss experiment, yielding a heralded second-order correlation gher(2)(0)=0.10±0.02 that confirms single-photon operation. The demonstrated generation and manipulation of quantum states on a single III-V semiconductor chip opens promising avenues towards real-world applications in quantum information.

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On-chip III-V monolithic integration of heralded single photon sources and beamsplitters

Abstract

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