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Integrated and DC-powered superconducting microcomb

Author

Listed:
  • Chen-Guang Wang

    (Nanjing University
    Purple Mountain Laboratories
    Nanjing University)

  • Wuyue Xu

    (Nanjing University
    Purple Mountain Laboratories
    Nanjing University)

  • Chong Li

    (Nanjing University
    Purple Mountain Laboratories
    Nanjing University)

  • Lili Shi

    (Nanjing University)

  • Junliang Jiang

    (Nanjing University)

  • Tingting Guo

    (Nanjing University)

  • Wen-Cheng Yue

    (Nanjing University
    Purple Mountain Laboratories
    Nanjing University)

  • Tianyu Li

    (Nanjing University
    Purple Mountain Laboratories
    Nanjing University)

  • Ping Zhang

    (Nanjing University)

  • Yang-Yang Lyu

    (Nanjing University
    Purple Mountain Laboratories)

  • Jiazheng Pan

    (Purple Mountain Laboratories)

  • Xiuhao Deng

    (Southern University of Science and Technology
    Hefei National Laboratory)

  • Ying Dong

    (China Jiliang University)

  • Xuecou Tu

    (Nanjing University
    Hefei National Laboratory)

  • Sining Dong

    (Nanjing University
    Nanjing University)

  • Chunhai Cao

    (Nanjing University)

  • Labao Zhang

    (Nanjing University
    Hefei National Laboratory)

  • Xiaoqing Jia

    (Nanjing University
    Hefei National Laboratory)

  • Guozhu Sun

    (Nanjing University
    Hefei National Laboratory)

  • Lin Kang

    (Nanjing University
    Hefei National Laboratory)

  • Jian Chen

    (Nanjing University
    Purple Mountain Laboratories)

  • Yong-Lei Wang

    (Nanjing University
    Purple Mountain Laboratories
    Nanjing University)

  • Huabing Wang

    (Nanjing University
    Purple Mountain Laboratories)

  • Peiheng Wu

    (Nanjing University
    Purple Mountain Laboratories)

Abstract

Frequency combs, specialized laser sources emitting multiple equidistant frequency lines, have revolutionized science and technology with unprecedented precision and versatility. Recently, integrated frequency combs are emerging as scalable solutions for on-chip photonics. Here, we demonstrate a fully integrated superconducting microcomb that is easy to manufacture, simple to operate, and consumes ultra-low power. Our turnkey apparatus comprises a basic nonlinear superconducting device, a Josephson junction, directly coupled to a superconducting microstrip resonator. We showcase coherent comb generation through self-started mode-locking. Therefore, comb emission is initiated solely by activating a DC bias source, with power consumption as low as tens of picowatts. The resulting comb spectrum resides in the microwave domain and spans multiple octaves. The linewidths of all comb lines can be narrowed down to 1 Hz through a unique coherent injection-locking technique. Our work represents a critical step towards fully integrated microwave photonics and offers the potential for integrated quantum processors.

Suggested Citation

  • Chen-Guang Wang & Wuyue Xu & Chong Li & Lili Shi & Junliang Jiang & Tingting Guo & Wen-Cheng Yue & Tianyu Li & Ping Zhang & Yang-Yang Lyu & Jiazheng Pan & Xiuhao Deng & Ying Dong & Xuecou Tu & Sining , 2024. "Integrated and DC-powered superconducting microcomb," Nature Communications, Nature, vol. 15(1), pages 1-7, December.
  • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-48224-1
    DOI: 10.1038/s41467-024-48224-1
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