Two-Way Photonic Interface for Linking the Sr+ Transition at 422 nm to the Telecommunication C Band

Thomas A. Wright; Robert J.A. Francis-Jones; Corin B.E. Gawith; Jonas N. Becker; Patrick M. Ledingham; Peter G.R. Smith; Joshua Nunn; Peter J. Mosley; Benjamin Brecht; Ian A. Walmsley

doi:10.1103/PhysRevApplied.10.044012

Two-Way Photonic Interface for Linking the Sr⁺ Transition at 422 nm to the Telecommunication C Band

Thomas A. Wright, Robert J.A. Francis-Jones, Corin B.E. Gawith, Jonas N. Becker, Patrick M. Ledingham, Peter G.R. Smith, Joshua Nunn, Peter J. Mosley, Benjamin Brecht, Ian A. Walmsley

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

15 Citations (SciVal)

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.

Original language	English
Article number	044012
Pages (from-to)	1-8
Number of pages	8
Journal	Physical Review Applied
Volume	10
Issue number	4
Early online date	4 Oct 2018
DOIs	https://doi.org/10.1103/PhysRevApplied.10.044012
Publication status	Published - 31 Oct 2018

ASJC Scopus subject areas

General Physics and Astronomy

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10.1103/PhysRevApplied.10.044012Licence: CC BY

Cite this

Wright, T. A., Francis-Jones, R. J. A., Gawith, C. B. E., Becker, J. N., Ledingham, P. M., Smith, P. G. R., Nunn, J., Mosley, P. J., Brecht, B., & Walmsley, I. 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. Article 044012. https://doi.org/10.1103/PhysRevApplied.10.044012

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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.",

author = "Wright, {Thomas A.} and Francis-Jones, {Robert J.A.} and Gawith, {Corin B.E.} and Becker, {Jonas N.} and Ledingham, {Patrick M.} and Smith, {Peter G.R.} and Joshua Nunn and Mosley, {Peter J.} and Benjamin Brecht and Walmsley, {Ian A.}",

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AU - Becker, Jonas N.

AU - Ledingham, Patrick M.

AU - Smith, Peter G.R.

AU - Nunn, Joshua

AU - Mosley, Peter J.

AU - Brecht, Benjamin

AU - Walmsley, Ian A.

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AB - 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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Two-Way Photonic Interface for Linking the Sr⁺ Transition at 422 nm to the Telecommunication C Band

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Two-Way Photonic Interface for Linking the Sr+ Transition at 422 nm to the Telecommunication C Band

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Two-Way Photonic Interface for Linking the Sr⁺ Transition at 422 nm to the Telecommunication C Band