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

Abstract:
We report a single-stage bi-directional 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 telecoms 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.
Publication status:
Published
Peer review status:
Peer reviewed
Version:
Publisher's Version

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Publisher copy:
10.1103/PhysRevApplied.10.044012

Authors


Wright, TA More by this author
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics
Subgroup:
Atomic & Laser Physics
ORCID:
0000-0002-3104-1599
Gawith, CBE More by this author
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics
Subgroup:
Atomic & Laser Physics
ORCID:
0000-0001-8265-4347
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics
Subgroup:
Atomic & Laser Physics
Expand authors...
Publisher:
American Physical Society Publisher's website
Journal:
Physical Review Applied Journal website
Volume:
10
Pages:
044012
Publication date:
2018-10-04
DOI:
EISSN:
2331-7019
Pubs id:
pubs:894969
URN:
uri:83dad12e-0ce3-4b31-bbd5-e08ce238de14
UUID:
uuid:83dad12e-0ce3-4b31-bbd5-e08ce238de14
Local pid:
pubs:894969
Keywords:

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