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Storage of telecom wavelength heralded single photons in a fiber cavity quantum memory

From National Research Council Canada

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DOIResolve DOI: https://doi.org/10.1364/OPTICAQ.506601
AuthorSearch for: 1ORCID identifier: https://orcid.org/0000-0002-5581-8892; Search for: 1ORCID identifier: https://orcid.org/0000-0001-8361-6828; Search for: 2ORCID identifier: https://orcid.org/0000-0003-4403-8214; Search for: 1ORCID identifier: https://orcid.org/0000-0003-1838-9643; Search for: 1ORCID identifier: https://orcid.org/0000-0002-6144-0937; Search for: 1ORCID identifier: https://orcid.org/0000-0002-5417-5389; Search for: 1ORCID identifier: https://orcid.org/0000-0002-9101-6897; Search for: 1ORCID identifier: https://orcid.org/0000-0002-0059-3358
Affiliation
  1. National Research Council Canada. Security and Disruptive Technologies
  2. National Research Council Canada. Advanced Electronics and Photonics
FunderSearch for: National Research Council Canada
FormatText, Article
Subjectquantum memories; single-photon source
Abstract
We demonstrate the storage and retrieval of heralded single photons in a fiber-based cavity quantum memory. The photons are stored, and retrieved, from the memory using quantum frequency conversion which switches the photon into, and out of, resonance with the cavity. The photons, generated in the telecom O-band with a bandwidth of 81 GHz, are retrieved from the memory with a 1/e lifetime of 1.64 µs, or 32.8 cavity round trips. We show that non-classical photon statistics remain for 70 round trips. The internal memory efficiency after 0.5 µs of storage is 10.9 ± 0.5%; a coupling efficiency of 60% into the memory cavity yields a total efficiency of 6.0 ± 0.3%. These results mark a crucial step forward in the development of fiber-based quantum memories, and high-bandwidth memories operating at telecom wavelengths, with applications to photon source multiplexing and fiber-based quantum networking.
Publication date
PublisherOptica Publishing Group
Copyright statement
  • © 2024 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved
    https://doi.org/10.1364/OA_License_v2#VOR-OA
In
  • Optica Quantum 2, no. 1 (30 January 2024): 41–45.
LanguageEnglish
Peer reviewedYes
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Record identifier908d2fb7-e436-4e84-b77f-3848e38df942
Record created2024-10-28
Record modified2025-11-03
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