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On-chip deterministic operation of quantum dots in dual-mode waveguides for a plug-and-play single-photon source

Author

Listed:
  • Ravitej Uppu

    (University of Copenhagen)

  • Hans T. Eriksen

    (University of Copenhagen)

  • Henri Thyrrestrup

    (University of Copenhagen)

  • Aslı D. Uğurlu

    (University of Copenhagen)

  • Ying Wang

    (University of Copenhagen)

  • Sven Scholz

    (Ruhr-Universität Bochum)

  • Andreas D. Wieck

    (Ruhr-Universität Bochum)

  • Arne Ludwig

    (Ruhr-Universität Bochum)

  • Matthias C. Löbl

    (University of Basel)

  • Richard J. Warburton

    (University of Basel)

  • Peter Lodahl

    (University of Copenhagen)

  • Leonardo Midolo

    (University of Copenhagen)

Abstract

A deterministic source of coherent single photons is an enabling device for quantum information processing. Quantum dots in nanophotonic structures have been employed as excellent sources of single photons with the promise of scaling up towards multiple photons and emitters. It remains a challenge to implement deterministic resonant optical excitation of the quantum dot required for generating coherent single photons, since residual light from the excitation laser should be suppressed without compromising source efficiency and scalability. Here, we present a planar nanophotonic circuit that enables deterministic pulsed resonant excitation of quantum dots using two orthogonal waveguide modes for separating the laser and the emitted photons. We report a coherent and stable single-photon source that simultaneously achieves high-purity (g(2)(0) = 0.020 ± 0.005), high-indistinguishability (V = 96 ± 2%), and >80% coupling efficiency into the waveguide. Such ‘plug-and-play’ single-photon source can be integrated with on-chip optical networks implementing photonic quantum processors.

Suggested Citation

  • Ravitej Uppu & Hans T. Eriksen & Henri Thyrrestrup & Aslı D. Uğurlu & Ying Wang & Sven Scholz & Andreas D. Wieck & Arne Ludwig & Matthias C. Löbl & Richard J. Warburton & Peter Lodahl & Leonardo Midol, 2020. "On-chip deterministic operation of quantum dots in dual-mode waveguides for a plug-and-play single-photon source," Nature Communications, Nature, vol. 11(1), pages 1-6, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-17603-9
    DOI: 10.1038/s41467-020-17603-9
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    Cited by:

    1. Ashish Chanana & Hugo Larocque & Renan Moreira & Jacques Carolan & Biswarup Guha & Emerson G. Melo & Vikas Anant & Jindong Song & Dirk Englund & Daniel J. Blumenthal & Kartik Srinivasan & Marcelo Dava, 2022. "Ultra-low loss quantum photonic circuits integrated with single quantum emitters," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    2. Penglong Ren & Shangming Wei & Weixi Liu & Shupei Lin & Zhaohua Tian & Tailin Huang & Jianwei Tang & Yaocheng Shi & Xue-Wen Chen, 2022. "Photonic-circuited resonance fluorescence of single molecules with an ultrastable lifetime-limited transition," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    3. N. Bart & C. Dangel & P. Zajac & N. Spitzer & J. Ritzmann & M. Schmidt & H. G. Babin & R. Schott & S. R. Valentin & S. Scholz & Y. Wang & R. Uppu & D. Najer & M. C. Löbl & N. Tomm & A. Javadi & N. O. , 2022. "Wafer-scale epitaxial modulation of quantum dot density," Nature Communications, Nature, vol. 13(1), pages 1-7, December.

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