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Hybrid integrated quantum photonic circuits

Nature Photonics volume 14, pages 285–298 (2020)Cite this article

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Abstract

Recent developments in chip-based photonic quantum circuits have radically impacted quantum information processing. However, it is challenging for monolithic photonic platforms to meet the stringent demands of most quantum applications. Hybrid platforms combining different photonic technologies in a single functional unit have great potential to overcome the limitations of monolithic photonic circuits. Our Review summarizes the progress of hybrid quantum photonics integration, discusses important design considerations, including optical connectivity and operation conditions, and highlights several successful realizations of key physical resources for building a quantum teleporter. We conclude by discussing the roadmap for realizing future advanced large-scale hybrid devices, beyond the solid-state platform, which hold great potential for quantum information applications.

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Fig. 1: Design considerations of hybrid quantum photonic circuits.
Fig. 2: Hybrid quantum photonic integration approaches.
Fig. 3: Hybrid integration of key quantum photonic resources.
Fig. 4: Advanced hybrid systems.
Fig. 5: Beyond hybrid integration of monolithic resources.

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Acknowledgements

A.W.E. acknowledges support from the Swedish Research Council (Vetenskapsrådet) Starting Grant (ref: 2016-03905) and the ATTRACT project funded by the EC under Grant Agreement 777222. O.B. acknowledges support from the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - Projektnummer 182087777 - SFB 951 within project B2 and B18. W.P. acknowledges support of ERC grant CoG 724707. V.Z. acknowledges support of the ATTRACT project funded by the EC under Grant Agreement 777222, funding from the Knut and Alice Wallenberg Foundation Grant “Quantum Sensors” and support from the Swedish Research Council (VR) through the VR Grant for International Recruitment of Leading Researchers (ref. 2013-7152) and Research Environment Grant (ref. 2016-06122).

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Authors and Affiliations

  1. Department of Applied Physics, KTH Royal Institute of Technology, Stockholm, Sweden

    Ali W. Elshaari & Val Zwiller

  2. Institute of Physics, University of Muenster, Muenster, Germany

    Wolfram Pernice

  3. Microsystems and Nanotechnology Division, National Institute of Standards and Technology, Gaithersburg, MD, USA

    Kartik Srinivasan

  4. Joint Quantum Institute, NIST/University of Maryland, College Park, MD, USA

    Kartik Srinivasan

  5. Nano-Optics and IRIS Adlershof, Humboldt-Universität zu Berlin, Berlin, Germany

    Oliver Benson

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Correspondence to Ali W. Elshaari.

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Elshaari, A.W., Pernice, W., Srinivasan, K. et al. Hybrid integrated quantum photonic circuits. Nat. Photonics 14, 285–298 (2020). https://doi.org/10.1038/s41566-020-0609-x

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