Toward a Quantum Memory in a Fiber Cavity Controlled by Intracavity Frequency Translation

We propose a quantum memory protocol based on trapping photons in a fiber-integrated cavity, comprised of a birefringent fiber with dichroic reflective end facets. Photons are switched into resonance with the fiber cavity by intracavity Bragg-scattering frequency translation, driven by ancillary con...

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Bibliographic Details
Published in:Physical review letters 2022-03, Vol.128 (12), p.120501-120501, Article 120501
Main Authors: Bustard, Philip J, Bonsma-Fisher, Kent, Hnatovsky, Cyril, Grobnic, Dan, Mihailov, Stephen J, England, Duncan, Sussman, Benjamin J
Format: Article
Language:English
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Summary:We propose a quantum memory protocol based on trapping photons in a fiber-integrated cavity, comprised of a birefringent fiber with dichroic reflective end facets. Photons are switched into resonance with the fiber cavity by intracavity Bragg-scattering frequency translation, driven by ancillary control pulses. After the storage delay, photons are switched out of resonance with the cavity, again by intracavity frequency translation. We demonstrate storage of quantum-level THz-bandwidth coherent states for a lifetime up to 16 cavity round trips, or 200 ns, and a maximum overall efficiency of 73%.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.128.120501