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Dispersive-wave induced noise limits in miniature soliton microwave sources

Author

Listed:
  • Qi-Fan Yang

    (California Institute of Technology)

  • Qing-Xin Ji

    (California Institute of Technology)

  • Lue Wu

    (California Institute of Technology)

  • Boqiang Shen

    (California Institute of Technology)

  • Heming Wang

    (California Institute of Technology)

  • Chengying Bao

    (California Institute of Technology)

  • Zhiquan Yuan

    (California Institute of Technology)

  • Kerry Vahala

    (California Institute of Technology)

Abstract

Compact, low-noise microwave sources are required throughout a wide range of application areas including frequency metrology, wireless-communications and airborne radar systems. And the photonic generation of microwaves using soliton microcombs offers a path towards integrated, low noise microwave signal sources. In these devices, a so called quiet-point of operation has been shown to reduce microwave frequency noise. Such operation decouples pump frequency noise from the soliton’s motion by balancing the Raman self-frequency shift with dispersive-wave recoil. Here, we explore the limit of this noise suppression approach and reveal a fundamental noise mechanism associated with fluctuations of the dispersive wave frequency. At the same time, pump noise reduction by as much as 36 dB is demonstrated. This fundamental noise mechanism is expected to impact microwave noise (and pulse timing jitter) whenever solitons radiate into dispersive waves belonging to different spatial mode families.

Suggested Citation

  • Qi-Fan Yang & Qing-Xin Ji & Lue Wu & Boqiang Shen & Heming Wang & Chengying Bao & Zhiquan Yuan & Kerry Vahala, 2021. "Dispersive-wave induced noise limits in miniature soliton microwave sources," Nature Communications, Nature, vol. 12(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-21658-7
    DOI: 10.1038/s41467-021-21658-7
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    Cited by:

    1. Yang He & Raymond Lopez-Rios & Usman A. Javid & Jingwei Ling & Mingxiao Li & Shixin Xue & Kerry Vahala & Qiang Lin, 2023. "High-speed tunable microwave-rate soliton microcomb," Nature Communications, Nature, vol. 14(1), pages 1-7, December.
    2. Mingming Nie & Kunpeng Jia & Yijun Xie & Shining Zhu & Zhenda Xie & Shu-Wei Huang, 2022. "Synthesized spatiotemporal mode-locking and photonic flywheel in multimode mesoresonators," Nature Communications, Nature, vol. 13(1), pages 1-9, 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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