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A squeezed quantum microcomb on a chip

Author

Listed:
  • Zijiao Yang

    (University of Virginia
    University of Virginia)

  • Mandana Jahanbozorgi

    (University of Virginia)

  • Dongin Jeong

    (Korea Advanced Institute of Science and Technology (KAIST))

  • Shuman Sun

    (University of Virginia)

  • Olivier Pfister

    (University of Virginia)

  • Hansuek Lee

    (Korea Advanced Institute of Science and Technology (KAIST)
    Korea Advanced Institute of Science and Technology (KAIST))

  • Xu Yi

    (University of Virginia
    University of Virginia)

Abstract

The optical microresonator-based frequency comb (microcomb) provides a versatile platform for nonlinear physics studies and has wide applications ranging from metrology to spectroscopy. The deterministic quantum regime is an unexplored aspect of microcombs, in which unconditional entanglements among hundreds of equidistant frequency modes can serve as critical ingredients to scalable universal quantum computing and quantum networking. Here, we demonstrate a deterministic quantum microcomb in a silica microresonator on a silicon chip. 40 continuous-variable quantum modes, in the form of 20 simultaneously two-mode squeezed comb pairs, are observed within 1 THz optical span at telecommunication wavelengths. A maximum raw squeezing of 1.6 dB is attained. A high-resolution spectroscopy measurement is developed to characterize the frequency equidistance of quantum microcombs. Our demonstration offers the possibility to leverage deterministically generated, frequency multiplexed quantum states and integrated photonics to open up new avenues in fields of spectroscopy, quantum metrology, and scalable, continuous-variable-based quantum information processing.

Suggested Citation

  • Zijiao Yang & Mandana Jahanbozorgi & Dongin Jeong & Shuman Sun & Olivier Pfister & Hansuek Lee & Xu Yi, 2021. "A squeezed quantum microcomb on a chip," Nature Communications, Nature, vol. 12(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-25054-z
    DOI: 10.1038/s41467-021-25054-z
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    Cited by:

    1. Hsuan-Hao Lu & Karthik V. Myilswamy & Ryan S. Bennink & Suparna Seshadri & Mohammed S. Alshaykh & Junqiu Liu & Tobias J. Kippenberg & Daniel E. Leaird & Andrew M. Weiner & Joseph M. Lukens, 2022. "Bayesian tomography of high-dimensional on-chip biphoton frequency combs with randomized measurements," Nature Communications, Nature, vol. 13(1), pages 1-12, December.
    2. Saket Kaushal & A. Aadhi & Anthony Roberge & Roberto Morandotti & Raman Kashyap & José Azaña, 2023. "All-fibre phase filters with 1-GHz resolution for high-speed passive optical logic processing," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    3. Chenghao Lao & Xing Jin & Lin Chang & Heming Wang & Zhe Lv & Weiqiang Xie & Haowen Shu & Xingjun Wang & John E. Bowers & Qi-Fan Yang, 2023. "Quantum decoherence of dark pulses in optical microresonators," Nature Communications, Nature, vol. 14(1), pages 1-8, December.

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