• Photonics Research
  • Vol. 9, Issue 2, 171 (2021)
Xueying Jin1、3, Xin Xu1、4, Haoran Gao1, Keyi Wang2, Haojie Xia1, and Liandong Yu1、*
Author Affiliations
  • 1School of Instrument Science and Opto-electronics Engineering, Hefei University of Technology, Hefei 230009, China
  • 2Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei 230026, China
  • 3e-mail: xyjin007@hfut.edu.cn
  • 4e-mail: xuxin@hfut.edu.cn
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    DOI: 10.1364/PRJ.408492 Cite this Article Set citation alerts
    Xueying Jin, Xin Xu, Haoran Gao, Keyi Wang, Haojie Xia, Liandong Yu. Controllable two-dimensional Kerr and Raman–Kerr frequency combs in microbottle resonators with selectable dispersion[J]. Photonics Research, 2021, 9(2): 171 Copy Citation Text show less

    Abstract

    We report a broadband two-dimensional (2D) Kerr and Raman–Kerr frequency comb generation in a silica bottle resonator accounting for azimuthal and axial degrees of freedom and pioneer a method that allows for controlled and reversible switching between a four wave mixing (FWM) state and a stimulated Raman scattering state. The repetition rate of the Raman–Kerr comb is not an integer number of the free spectral range, which spans more than 242 nm with hundreds of teeth. We show that, experimentally and numerically, multiple 2D comb regimes can be selectively accessed via dispersion engineering by exciting different orders of axial modes or modifying the curvature of the axial profile, involving cascaded FWM, Raman lasing, and Raman-assisted FWM. The effect of axial curvature on dispersion is associated with the axial mode number in bottle resonators. Our approach enables dispersion and spectral engineering flexibility in any resonator with localized axial modes.
    fm=c2πn[(UmpR0)2+(q+12)ΔEm]1/2,

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    FSR=fmfm1,ΔFSRG=(fm+1fm)(fmfm1).

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    ΔFSR=ΔFSRM+ΔFSRG.

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    β2=14π2R0·ΔFSRFSR3  [ps2/km].

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    (tRt+α+θ2+iδ+iβ2L22τ2)Ei(1fR)γL|E|2EifRγL[EτhR(ττ)|E|2dτ]θEin=0.

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    Xueying Jin, Xin Xu, Haoran Gao, Keyi Wang, Haojie Xia, Liandong Yu. Controllable two-dimensional Kerr and Raman–Kerr frequency combs in microbottle resonators with selectable dispersion[J]. Photonics Research, 2021, 9(2): 171
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