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Frequency multiplexing for quasi-deterministic heralded single-photon sources
Parametric single-photon sources are well suited for large-scale quantum networks due to their potential for photonic integration. Active multiplexing of photons can overcome the intrinsically probabilistic nature of these sources, resulting in near-deterministic operation. However, previous impleme...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5829139/ https://www.ncbi.nlm.nih.gov/pubmed/29487312 http://dx.doi.org/10.1038/s41467-018-03254-4 |
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author | Joshi, Chaitali Farsi, Alessandro Clemmen, Stéphane Ramelow, Sven Gaeta, Alexander L. |
author_facet | Joshi, Chaitali Farsi, Alessandro Clemmen, Stéphane Ramelow, Sven Gaeta, Alexander L. |
author_sort | Joshi, Chaitali |
collection | PubMed |
description | Parametric single-photon sources are well suited for large-scale quantum networks due to their potential for photonic integration. Active multiplexing of photons can overcome the intrinsically probabilistic nature of these sources, resulting in near-deterministic operation. However, previous implementations using spatial and temporal multiplexing scale unfavorably due to rapidly increasing switching losses. Here, we break this limitation via frequency multiplexing in which switching losses remain fixed irrespective of the number of multiplexed modes. We use low-noise optical frequency conversion for efficient frequency switching and demonstrate multiplexing of three modes. We achieve a generation rate of 4.6 × 10(4) photons per second with an ultra-low g((2))(0) = 0.07 indicating high single-photon purity. Our scalable, all-fiber multiplexing system has a total loss of just 1.3 dB, such that the 4.8 dB multiplexing enhancement markedly overcomes switching loss. Our approach offers a promising path to creating a deterministic photon source on an integrated chip-based platform. |
format | Online Article Text |
id | pubmed-5829139 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-58291392018-03-02 Frequency multiplexing for quasi-deterministic heralded single-photon sources Joshi, Chaitali Farsi, Alessandro Clemmen, Stéphane Ramelow, Sven Gaeta, Alexander L. Nat Commun Article Parametric single-photon sources are well suited for large-scale quantum networks due to their potential for photonic integration. Active multiplexing of photons can overcome the intrinsically probabilistic nature of these sources, resulting in near-deterministic operation. However, previous implementations using spatial and temporal multiplexing scale unfavorably due to rapidly increasing switching losses. Here, we break this limitation via frequency multiplexing in which switching losses remain fixed irrespective of the number of multiplexed modes. We use low-noise optical frequency conversion for efficient frequency switching and demonstrate multiplexing of three modes. We achieve a generation rate of 4.6 × 10(4) photons per second with an ultra-low g((2))(0) = 0.07 indicating high single-photon purity. Our scalable, all-fiber multiplexing system has a total loss of just 1.3 dB, such that the 4.8 dB multiplexing enhancement markedly overcomes switching loss. Our approach offers a promising path to creating a deterministic photon source on an integrated chip-based platform. Nature Publishing Group UK 2018-02-27 /pmc/articles/PMC5829139/ /pubmed/29487312 http://dx.doi.org/10.1038/s41467-018-03254-4 Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Joshi, Chaitali Farsi, Alessandro Clemmen, Stéphane Ramelow, Sven Gaeta, Alexander L. Frequency multiplexing for quasi-deterministic heralded single-photon sources |
title | Frequency multiplexing for quasi-deterministic heralded single-photon sources |
title_full | Frequency multiplexing for quasi-deterministic heralded single-photon sources |
title_fullStr | Frequency multiplexing for quasi-deterministic heralded single-photon sources |
title_full_unstemmed | Frequency multiplexing for quasi-deterministic heralded single-photon sources |
title_short | Frequency multiplexing for quasi-deterministic heralded single-photon sources |
title_sort | frequency multiplexing for quasi-deterministic heralded single-photon sources |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5829139/ https://www.ncbi.nlm.nih.gov/pubmed/29487312 http://dx.doi.org/10.1038/s41467-018-03254-4 |
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