Wang Shaofei, Guo Hairun, Bai Xuekun, Zeng Xianglong
Opt Lett. 2014 May 15;39(10):2880-3. doi: 10.1364/OL.39.002880.
We numerically investigate the influence of high-order dispersion (HOD) on temporal and spectral characteristics of microresonator-based optical frequency combs. Theoretical analysis based on the moment method associated with numerical simulations are utilized to study the comb evolution dynamics, showing that temporal shifts of steady-state intracavity solitons are induced by high-odd-order dispersion rather than high-even-order dispersion. The role of HOD on comb spectral envelopes is also elucidated through analyzing the intracavity dispersive wave generations. We further demonstrate that the spectral envelope of a broadband optical frequency comb can be engineered by using a cavity dispersion profile with multiple zero dispersion wavelengths.
我们通过数值方法研究了高阶色散（HOD）对基于微谐振器的光学频率梳的时间和光谱特性的影响。利用基于矩量法并结合数值模拟的理论分析来研究频率梳的演化动力学，结果表明稳态腔内孤子的时间偏移是由高奇数阶色散而非高偶数阶色散引起的。通过分析腔内色散波的产生，还阐明了高阶色散对频率梳光谱包络的作用。我们进一步证明，通过使用具有多个零色散波长的腔色散分布，可以设计宽带光学频率梳的光谱包络。
