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High-order coherent communications using mode-locked dark-pulse Kerr combs from microresonators

Author

Listed:
  • Attila Fülöp

    (Chalmers University of Technology)

  • Mikael Mazur

    (Chalmers University of Technology)

  • Abel Lorences-Riesgo

    (Chalmers University of Technology
    IT-Instituto de Telecomunicações)

  • Óskar B. Helgason

    (Chalmers University of Technology)

  • Pei-Hsun Wang

    (Purdue University)

  • Yi Xuan

    (Purdue University
    Purdue University)

  • Dan E. Leaird

    (Purdue University)

  • Minghao Qi

    (Purdue University
    Purdue University)

  • Peter A. Andrekson

    (Chalmers University of Technology)

  • Andrew M. Weiner

    (Purdue University
    Purdue University)

  • Victor Torres-Company

    (Chalmers University of Technology)

Abstract

Microresonator frequency combs harness the nonlinear Kerr effect in an integrated optical cavity to generate a multitude of phase-locked frequency lines. The line spacing can reach values in the order of 100 GHz, making it an attractive multi-wavelength light source for applications in fiber-optic communications. Depending on the dispersion of the microresonator, different physical dynamics have been observed. A recently discovered comb state corresponds to the formation of mode-locked dark pulses in a normal-dispersion microcavity. Such dark-pulse combs are particularly compelling for advanced coherent communications since they display unusually high power-conversion efficiency. Here, we report the first coherent-transmission experiments using 64-quadrature amplitude modulation encoded onto the frequency lines of a dark-pulse comb. The high conversion efficiency of the comb enables transmitted optical signal-to-noise ratios above 33 dB, while maintaining a laser pump power level compatible with state-of-the-art hybrid silicon lasers.

Suggested Citation

  • Attila Fülöp & Mikael Mazur & Abel Lorences-Riesgo & Óskar B. Helgason & Pei-Hsun Wang & Yi Xuan & Dan E. Leaird & Minghao Qi & Peter A. Andrekson & Andrew M. Weiner & Victor Torres-Company, 2018. "High-order coherent communications using mode-locked dark-pulse Kerr combs from microresonators," Nature Communications, Nature, vol. 9(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-04046-6
    DOI: 10.1038/s41467-018-04046-6
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    Cited by:

    1. Yuanbin Liu & Hongyi Zhang & Jiacheng Liu & Liangjun Lu & Jiangbing Du & Yu Li & Zuyuan He & Jianping Chen & Linjie Zhou & Andrew W. Poon, 2024. "Parallel wavelength-division-multiplexed signal transmission and dispersion compensation enabled by soliton microcombs and microrings," Nature Communications, Nature, vol. 15(1), pages 1-12, December.
    2. Miles H. Anderson & Wenle Weng & Grigory Lihachev & Alexey Tikan & Junqiu Liu & Tobias J. Kippenberg, 2022. "Zero dispersion Kerr solitons in optical microresonators," Nature Communications, Nature, vol. 13(1), pages 1-10, December.

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