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 journalArticle

3 Citations (Scopus)

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 languageEnglish
Article number044012
Pages (from-to)1-8
Number of pages8
JournalPhysical Review Applied
Volume10
Issue number4
Early online date4 Oct 2018
DOIs
Publication statusPublished - 31 Oct 2018

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Wright, T. A., Francis-Jones, R. J. A., Gawith, C. B. E., Becker, J. N., Ledingham, P. M., Smith, P. G. R., ... 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. [044012]. https://doi.org/10.1103/PhysRevApplied.10.044012