Integrated source of path-entangled photon pairs with efficient pump self-rejection

Pablo de la Hoz; Anton Sakovich; Alexander Mikhalychev; Matthew Thornton; Natalia Korolkova; Dmitri Mogilevtsev

doi:10.3390/nano10101952

Integrated source of path-entangled photon pairs with efficient pump self-rejection

Pablo de la Hoz, Anton Sakovich, Alexander Mikhalychev, Matthew Thornton, Natalia Korolkova, Dmitri Mogilevtsev

School of Physics and Astronomy

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

Abstract

We present a theoretical proposal for an integrated four-wave mixing source of narrow-band path-entangled photon pairs with efficient spatial pump self-rejection. The scheme is based on correlated loss in a system of waveguides in Kerr nonlinear media. We calculate that this setup gives the possibility for upwards of 100 dB pump rejection, without additional filtering. The effect is reached by driving the symmetric collective mode that is strongly attenuated by an engineered dissipation, while photon pairs are born in the antisymmetric mode. A similar set-up can additionally be realized for the generation of two-photon NOON states, also with pump self-rejection. We discuss the implementation of the scheme by means of the coherent diffusive photonics, and demostrate its feasibility in both glass (such as fused silica-glass and IG2) and planar semiconductor waveguide structures in indium phosphide (InP) and in silicon.

Original language	English
Article number	1952
Number of pages	15
Journal	Nanomaterials
Volume	10
Issue number	10
DOIs	https://doi.org/10.3390/nano10101952
Publication status	Published - 30 Sept 2020

Keywords

Four-wave mixing
Coherent diffusive photonics
Entangled photons generation

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10.3390/nano10101952Licence: CC BY

delaHoz_2020_Integrated_source_Nanomaterials_CC
Copyright © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Final published version, 1.52 MBLicence: CC BY

Agile quantum cryptography and non-classical state generation (thesis data)
Thornton, M. (Creator) & Korolkova, N. (Supervisor), University of St Andrews, 2020
DOI: 10.17630/6ba10862-4bdd-478f-8bd7-4f4b4d383374, http://hdl.handle.net/10023/21361
Dataset: Thesis dataset

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title = "Integrated source of path-entangled photon pairs with efficient pump self-rejection",

abstract = "We present a theoretical proposal for an integrated four-wave mixing source of narrow-band path-entangled photon pairs with efficient spatial pump self-rejection. The scheme is based on correlated loss in a system of waveguides in Kerr nonlinear media. We calculate that this setup gives the possibility for upwards of 100 dB pump rejection, without additional filtering. The effect is reached by driving the symmetric collective mode that is strongly attenuated by an engineered dissipation, while photon pairs are born in the antisymmetric mode. A similar set-up can additionally be realized for the generation of two-photon NOON states, also with pump self-rejection. We discuss the implementation of the scheme by means of the coherent diffusive photonics, and demostrate its feasibility in both glass (such as fused silica-glass and IG2) and planar semiconductor waveguide structures in indium phosphide (InP) and in silicon.",

keywords = "Four-wave mixing, Coherent diffusive photonics, Entangled photons generation",

author = "{de la Hoz}, Pablo and Anton Sakovich and Alexander Mikhalychev and Matthew Thornton and Natalia Korolkova and Dmitri Mogilevtsev",

note = "This research was supported by the EU Flagship on Quantum Technologies, project PhoG (820365). D.M., A.S. and A.M. also acknowledge support from the National Academy of Sciences of Belarus program “Convergence”. The authors gratefully acknowledge the support from the Scottish Universities Physics Alliance (SUPA) and the Engineering and Physical Sciences Research Council (EPSRC). ",

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T1 - Integrated source of path-entangled photon pairs with efficient pump self-rejection

AU - de la Hoz, Pablo

AU - Sakovich, Anton

AU - Mikhalychev, Alexander

AU - Thornton, Matthew

AU - Korolkova, Natalia

AU - Mogilevtsev, Dmitri

N1 - This research was supported by the EU Flagship on Quantum Technologies, project PhoG (820365). D.M., A.S. and A.M. also acknowledge support from the National Academy of Sciences of Belarus program “Convergence”. The authors gratefully acknowledge the support from the Scottish Universities Physics Alliance (SUPA) and the Engineering and Physical Sciences Research Council (EPSRC).

PY - 2020/9/30

Y1 - 2020/9/30

N2 - We present a theoretical proposal for an integrated four-wave mixing source of narrow-band path-entangled photon pairs with efficient spatial pump self-rejection. The scheme is based on correlated loss in a system of waveguides in Kerr nonlinear media. We calculate that this setup gives the possibility for upwards of 100 dB pump rejection, without additional filtering. The effect is reached by driving the symmetric collective mode that is strongly attenuated by an engineered dissipation, while photon pairs are born in the antisymmetric mode. A similar set-up can additionally be realized for the generation of two-photon NOON states, also with pump self-rejection. We discuss the implementation of the scheme by means of the coherent diffusive photonics, and demostrate its feasibility in both glass (such as fused silica-glass and IG2) and planar semiconductor waveguide structures in indium phosphide (InP) and in silicon.

AB - We present a theoretical proposal for an integrated four-wave mixing source of narrow-band path-entangled photon pairs with efficient spatial pump self-rejection. The scheme is based on correlated loss in a system of waveguides in Kerr nonlinear media. We calculate that this setup gives the possibility for upwards of 100 dB pump rejection, without additional filtering. The effect is reached by driving the symmetric collective mode that is strongly attenuated by an engineered dissipation, while photon pairs are born in the antisymmetric mode. A similar set-up can additionally be realized for the generation of two-photon NOON states, also with pump self-rejection. We discuss the implementation of the scheme by means of the coherent diffusive photonics, and demostrate its feasibility in both glass (such as fused silica-glass and IG2) and planar semiconductor waveguide structures in indium phosphide (InP) and in silicon.

KW - Four-wave mixing

KW - Coherent diffusive photonics

KW - Entangled photons generation

U2 - 10.3390/nano10101952

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M3 - Article

SN - 2079-4991

VL - 10

JO - Nanomaterials

JF - Nanomaterials

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M1 - 1952

ER -

Integrated source of path-entangled photon pairs with efficient pump self-rejection

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Keywords

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Agile quantum cryptography and non-classical state generation (thesis data)

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