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Chip-based array of near-identical, pure, heralded single-photon sources

Chip-based array of near-identical, pure, heralded single-photon sources
Chip-based array of near-identical, pure, heralded single-photon sources
Interference between independent single photons is perhaps the most fundamental interaction in quantum optics. It has become increasingly important as a tool for optical quantum information science, as one of the rudimentary quantum operations, together with photon detection, for generating entanglement between non-interacting particles. Despite this, demonstrations of large-scale photonic networks involving more than two independent sources of quantum light have been limited due to the difficulty in constructing large arrays of high-quality, single-photon sources. Here, we solve the key challenge, reporting on a novel array of five near-identical, low-loss, high-purity, heralded single-photon sources using spontaneous four-wave mixing on a silica chip. We verify source quality through a series of heralded Hong–Ou–Mandel (HOM) experiments, and further report the experimental three-photon extension of the HOM interference effect, which maps out for the first time, to our knowledge, the interference landscape between three independent single-photon sources.
2334-2536
90-96
Spring, Justin B.
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Mennea, Paolo L.
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Metcalf, Benjamin J.
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Humphreys, Peter C.
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Gates, James C.
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Rogers, Helen L.
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Soller, Christoph
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Smith, Brian J.
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Kolthammer, W. Steven
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Smith, Peter G.R.
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Walmsley, Ian A.
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Spring, Justin B.
daf7635a-8c7f-441a-a1bf-52d04b584806
Mennea, Paolo L.
d994ba05-bcc1-4be3-8ba1-439fb1535a3f
Metcalf, Benjamin J.
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Humphreys, Peter C.
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Gates, James C.
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Rogers, Helen L.
c6b6aa89-b14c-48b6-92c0-dd5c5bca683c
Soller, Christoph
62ff27d0-6b2f-47a7-8ec6-144514a79e72
Smith, Brian J.
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Kolthammer, W. Steven
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Smith, Peter G.R.
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Walmsley, Ian A.
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Spring, Justin B., Mennea, Paolo L., Metcalf, Benjamin J., Humphreys, Peter C., Gates, James C., Rogers, Helen L., Soller, Christoph, Smith, Brian J., Kolthammer, W. Steven, Smith, Peter G.R. and Walmsley, Ian A. (2017) Chip-based array of near-identical, pure, heralded single-photon sources. Optica, 4 (1), 90-96. (doi:10.1364/OPTICA.4.000090).

Record type: Article

Abstract

Interference between independent single photons is perhaps the most fundamental interaction in quantum optics. It has become increasingly important as a tool for optical quantum information science, as one of the rudimentary quantum operations, together with photon detection, for generating entanglement between non-interacting particles. Despite this, demonstrations of large-scale photonic networks involving more than two independent sources of quantum light have been limited due to the difficulty in constructing large arrays of high-quality, single-photon sources. Here, we solve the key challenge, reporting on a novel array of five near-identical, low-loss, high-purity, heralded single-photon sources using spontaneous four-wave mixing on a silica chip. We verify source quality through a series of heralded Hong–Ou–Mandel (HOM) experiments, and further report the experimental three-photon extension of the HOM interference effect, which maps out for the first time, to our knowledge, the interference landscape between three independent single-photon sources.

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Accepted/In Press date: 14 November 2016
e-pub ahead of print date: 11 January 2017
Published date: 20 January 2017
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 411222
URI: https://eprints.soton.ac.uk/id/eprint/411222
ISSN: 2334-2536
PURE UUID: cfa06e9e-74df-4a25-90ed-17fa0c3bc486
ORCID for James C. Gates: ORCID iD orcid.org/0000-0001-8671-5987
ORCID for Peter G.R. Smith: ORCID iD orcid.org/0000-0003-0319-718X

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Date deposited: 15 Jun 2017 16:32
Last modified: 03 Dec 2019 02:01

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Contributors

Author: Justin B. Spring
Author: Paolo L. Mennea
Author: Benjamin J. Metcalf
Author: Peter C. Humphreys
Author: James C. Gates ORCID iD
Author: Helen L. Rogers
Author: Christoph Soller
Author: Brian J. Smith
Author: W. Steven Kolthammer
Author: Ian A. Walmsley

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