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Vernier frequency division with dual-microresonator solitons

Author

Listed:
  • Beichen Wang

    (University of Virginia)

  • Zijiao Yang

    (University of Virginia
    University of Virginia)

  • Xiaobao Zhang

    (University of Virginia
    National University of Defense Technology)

  • Xu Yi

    (University of Virginia
    University of Virginia)

Abstract

Microresonator solitons are critical to miniaturize optical frequency combs to chip scale and have the potential to revolutionize spectroscopy, metrology and timing. With the reduction of resonator diameter, high repetition rates up to 1 THz become possible, and they are advantageous to wavelength multiplexing, coherent sampling, and self-referencing. However, the detection of comb repetition rate, the precursor to all comb-based applications, becomes challenging at these repetition rates due to the limited bandwidth of photodiodes and electronics. Here, we report a dual-comb Vernier frequency division method to vastly reduce the required electrical bandwidth. Free-running 216 GHz “Vernier” solitons sample and divide the main soliton’s repetition frequency from 197 GHz to 995 MHz through electrical processing of a pair of low frequency dual-comb beat notes. Our demonstration relaxes the instrumentation requirement for microcomb repetition rate detection, and could be applied for optical clocks, optical frequency division, and microwave photonics.

Suggested Citation

  • Beichen Wang & Zijiao Yang & Xiaobao Zhang & Xu Yi, 2020. "Vernier frequency division with dual-microresonator solitons," Nature Communications, Nature, vol. 11(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-17843-9
    DOI: 10.1038/s41467-020-17843-9
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    Cited by:

    1. Yong Geng & Heng Zhou & Xinjie Han & Wenwen Cui & Qiang Zhang & Boyuan Liu & Guangwei Deng & Qiang Zhou & Kun Qiu, 2022. "Coherent optical communications using coherence-cloned Kerr soliton microcombs," Nature Communications, Nature, vol. 13(1), pages 1-8, December.

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