Hysteresis behavior of Kerr frequency comb generation in a high-quality-factor whispering-gallery-mode microcavity

Takumi Kato, Akitoshi Chen-Jinnai, Takuma Nagano, Tomoya Kobatake, Ryo Suzuki, Wataru Yoshiki, Takasumi Tanabe

研究成果: Article査読

11 被引用数 (Scopus)

抄録

A numerical and experimental study of Kerr frequency comb generation in a silica toroid microcavity is presented. We use a generalized mean-field Lugiato-Lefever equation and solve it with the split-step Fourier method. We observe that a stable mode-locked regime can be accessed when we reduce the input power after strong pumping due to the bistable nature of the nonlinear cavity system used. The experimental results agree well with the results of the numerical analysis, where we obtain a low-noise Kerr comb spectrum by gradually reducing the pumping input after strong pumping. This finding complements the results obtained by a previous wavelength scanning method and clarifies the procedure for achieving mode-locked states in such high-Q microcavity systems.

本文言語English
論文番号072201
ジャーナルJapanese journal of applied physics
55
7
DOI
出版ステータスPublished - 2016 7月

ASJC Scopus subject areas

  • 工学(全般)
  • 物理学および天文学(全般)

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