TY - JOUR
T1 - Hysteresis behavior of Kerr frequency comb generation in a high-quality-factor whispering-gallery-mode microcavity
AU - Kato, Takumi
AU - Chen-Jinnai, Akitoshi
AU - Nagano, Takuma
AU - Kobatake, Tomoya
AU - Suzuki, Ryo
AU - Yoshiki, Wataru
AU - Tanabe, Takasumi
N1 - Publisher Copyright:
© 2016 The Japan Society of Applied Physics.
Copyright:
Copyright 2016 Elsevier B.V., All rights reserved.
PY - 2016/7
Y1 - 2016/7
N2 - 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.
AB - 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.
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U2 - 10.7567/JJAP.55.072201
DO - 10.7567/JJAP.55.072201
M3 - Article
AN - SCOPUS:84976496167
VL - 55
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
SN - 0021-4922
IS - 7
M1 - 072201
ER -