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Quantum frequency down-conversion of single photons at 1552 nm from single InAs quantum dot

         

摘要

Near-infrared single photon sources in telecommunication bands,especially at 1550 nm,are required for long-distance quantum communication.Here a down-conversion quantum interface is implemented,where the single photons emitted from single InAs quantum dot at 864 nm is down converted to 1552 nm by using a fiber-coupled periodically poled lithium niobate(PPLN)waveguide and a 1.95 μmm pump laser,and the frequency conversion efficiency is~40%.The single-photon purity of quantum dot emission is preserved during the down-conversion process,i.e.,g(2)(0),only 0.22 at 1552 nm.This present technique advances the Ⅲ-Ⅴ semiconductor quantum dots as a promising platform for long-distance quantum communication.

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  • 来源
    《中国物理:英文版》 |2018年第9期|679-684|共6页
  • 作者单位

    State Key Laboratory of Superlattices and Microstructures,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China;

    College of Materials Science and Opto-Electronic Technology,University of Chinese Academy of Sciences,Beijing 101418,China;

    Synergetic Innovation Center of Quantum Information and Quantum Physics,University of Science and Technology of China,Hefei 230026,China;

    State Key Laboratory of Superlattices and Microstructures,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China;

    College of Materials Science and Opto-Electronic Technology,University of Chinese Academy of Sciences,Beijing 101418,China;

    Synergetic Innovation Center of Quantum Information and Quantum Physics,University of Science and Technology of China,Hefei 230026,China;

    State Key Laboratory of Superlattices and Microstructures,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China;

    College of Materials Science and Opto-Electronic Technology,University of Chinese Academy of Sciences,Beijing 101418,China;

    Synergetic Innovation Center of Quantum Information and Quantum Physics,University of Science and Technology of China,Hefei 230026,China;

    State Key Laboratory of Superlattices and Microstructures,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China;

    College of Materials Science and Opto-Electronic Technology,University of Chinese Academy of Sciences,Beijing 101418,China;

    Synergetic Innovation Center of Quantum Information and Quantum Physics,University of Science and Technology of China,Hefei 230026,China;

    State Key Laboratory of Superlattices and Microstructures,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China;

    College of Materials Science and Opto-Electronic Technology,University of Chinese Academy of Sciences,Beijing 101418,China;

    Synergetic Innovation Center of Quantum Information and Quantum Physics,University of Science and Technology of China,Hefei 230026,China;

    State Key Laboratory of Superlattices and Microstructures,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China;

    College of Materials Science and Opto-Electronic Technology,University of Chinese Academy of Sciences,Beijing 101418,China;

    Synergetic Innovation Center of Quantum Information and Quantum Physics,University of Science and Technology of China,Hefei 230026,China;

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  • 正文语种 eng
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