论文标题
优化的参数调制瓶微孔子的频谱频谱
Optimized frequency comb spectrum of parametrically modulated bottle microresonators
论文作者
论文摘要
通过聚合参数模型通常描述了通过光学微孔子的参数调制来形成光频率梳子（OFCS）。但是，这些模型不考虑参数调制（SDPM）的实际空间分布。在这里，我们表明SDPM的效果对于沿其轴向长度的较浅的纳米尺度尺度变化的细长快照瓶微孔子（SBM）变得非常重要。与具有不同形状（例如球形和环形）的微孔子相比，SBM的优势在于，剩余微型的SBM可以具有谐振光谱，具有较小的游离频谱范围并且没有分散。因此，SBM可用于生成重复率要低得多的OFC。我们考虑抛物线SBM的共振和绝热调制，并表明可以通过优化SDPM来提高扁平度并增加生成的OFC光谱的带宽。我们建议可以使用压电，辐射压力和SBM的电流激发来实验实现确定的最佳SDPM。
The formation of optical frequency combs (OFCs) by the parametric modulation of optical microresonators is commonly described by lumped-parameter models. However, these models do not consider the actual spatial distribution of the parametric modulation (SDPM). Here, we show that the effect of the SDPM becomes of special importance for an elongated SNAP bottle microresonator (SBM) having shallow nanometre-scale effective radius variation along its axial length. The advantage of SBMs compared to microresonators with different shapes (e.g., spherical and toroidal) is that SBMs, remaining miniature, can have resonant spectrum with much smaller free spectral range and no dispersion. Therefore, SBMs can be used to generate OFCs with much lower repetition rates. We consider the resonant and adiabatic modulation of parabolic SBMs and show that it is possible to improve the flatness and increase the bandwidth of the generated OFC spectra by optimising the SDPM. We suggest that the determined optimal SDPM can be experimentally realized using piezoelectric, radiation pressure, and electro-optical excitation of an SBM.
