Nature Communications (Mar 2021)

Dispersive-wave induced noise limits in miniature soliton microwave sources

  • Qi-Fan Yang,
  • Qing-Xin Ji,
  • Lue Wu,
  • Boqiang Shen,
  • Heming Wang,
  • Chengying Bao,
  • Zhiquan Yuan,
  • Kerry Vahala

DOI
https://doi.org/10.1038/s41467-021-21658-7
Journal volume & issue
Vol. 12, no. 1
pp. 1 – 10

Abstract

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Here the authors explore the noise spectrum of soliton microcomb when the pump is decoupled from the solitons motion by balancing the Raman shift with the emitted dispersive wave. Based on the analysis of the phase noise and the soliton repetition rate, they identify the uncorrelated thermal fluctuations as underlying mechanism.