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Two-way photonic interface for linking the Sr+ transition at 422 nm to the telecommunication C band

Two-way photonic interface for linking the Sr+ transition at 422 nm to the telecommunication C band
Two-way photonic interface for linking the Sr+ transition at 422 nm to the telecommunication C band

We report a single-stage bidirectional interface capable of linking Sr+ trapped-ion qubits in a long-distance quantum network. Our interface converts photons between the Sr+ emission wavelength at 422 nm and the telecom C band to enable low-loss transmission over optical fiber. We have achieved both up- and down-conversion at the single-photon level with efficiencies of 9.4% and 1.1%, respectively. Furthermore, we demonstrate noise levels that are low enough to allow for genuine quantum operation in the future.

1-8
Wright, Thomas A.
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Francis-Jones, Robert J.A.
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Gawith, Corin B.E.
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Becker, Jonas N.
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Ledingham, Patrick M.
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Smith, Peter G.R.
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Nunn, Joshua
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Mosley, Peter J.
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Brecht, Benjamin
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Walmsley, Ian A.
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Wright, Thomas A.
1ef37c00-d0de-4954-bd3b-1a48383ff223
Francis-Jones, Robert J.A.
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Gawith, Corin B.E.
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Becker, Jonas N.
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Ledingham, Patrick M.
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Smith, Peter G.R.
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Nunn, Joshua
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Mosley, Peter J.
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Brecht, Benjamin
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Walmsley, Ian A.
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Wright, Thomas A., Francis-Jones, Robert J.A., Gawith, Corin B.E., Becker, Jonas N., Ledingham, Patrick M., Smith, Peter G.R., Nunn, Joshua, Mosley, Peter J., Brecht, Benjamin and Walmsley, Ian A. (2018) Two-way photonic interface for linking the Sr+ transition at 422 nm to the telecommunication C band. Physical Review Applied, 10 (4), 1-8. (doi:10.1103/PhysRevApplied.10.044012).

Record type: Article

Abstract

We report a single-stage bidirectional interface capable of linking Sr+ trapped-ion qubits in a long-distance quantum network. Our interface converts photons between the Sr+ emission wavelength at 422 nm and the telecom C band to enable low-loss transmission over optical fiber. We have achieved both up- and down-conversion at the single-photon level with efficiencies of 9.4% and 1.1%, respectively. Furthermore, we demonstrate noise levels that are low enough to allow for genuine quantum operation in the future.

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PhysRevApplied.10.044012 - Version of Record
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More information

Accepted/In Press date: 16 August 2018
e-pub ahead of print date: 4 October 2018
Published date: 4 October 2018

Identifiers

Local EPrints ID: 425544
URI: https://eprints.soton.ac.uk/id/eprint/425544
PURE UUID: 66ea6272-6638-4613-9a18-099031871072
ORCID for Corin B.E. Gawith: ORCID iD orcid.org/0000-0002-3502-3558

Catalogue record

Date deposited: 24 Oct 2018 16:30
Last modified: 17 Sep 2019 01:02

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Contributors

Author: Thomas A. Wright
Author: Robert J.A. Francis-Jones
Author: Jonas N. Becker
Author: Patrick M. Ledingham
Author: Joshua Nunn
Author: Peter J. Mosley
Author: Benjamin Brecht
Author: Ian A. Walmsley

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