Mode-locked dark pulse Kerr combs in normal-dispersion microresonators
Mode-locked dark pulse Kerr combs in normal-dispersion microresonators
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DOI：
10.1038/nphoton.2015.137
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发表时间：
2015-09-01
期刊：
影响因子：
35
通讯作者：
Weiner, Andrew M.
中科院分区：
文献类型：
--
作者：
Xue, Xiaoxiao;Xuan, Yi;Weiner, Andrew M.
在相干驱动的非线性微谐振器中产生克尔频率梳现在被研究界广泛地研究，作为一种潜在的便携式技术用于各种应用。在这里，我们报告的实验中，暗脉冲梳形成在正常色散微谐振器与模式相互作用辅助激发，和锁模跃迁中观察到的正常色散制度。模式interactionaided激发暗脉冲出现通过一个确定性的途径，在鲜明的对比，在异常色散区的情况下，明亮的脉冲。在正常色散状态下锁模的能力增加了微谐振器设计的自由度，并且可以将克尔梳产生扩展到可见光，其中材料色散可能占主导地位。
The generation of Kerr frequency combs in a coherently driven nonlinear microresonator is now extensively investigated more generally by the research community as a potentially portable technology for a variety of applications. Here, we report experiments in which dark pulse combs are formed in normal-dispersion microresonators with mode-interaction-assisted excitation, and mode-locking transitions are observed in the normal-dispersion regime. The mode-interactionaided excitation of dark pulses appears to occur through a deterministic pathway, in sharp contrast to the situation for bright pulses in the anomalous dispersion region. The ability to mode-lock in the normal-dispersion regime increases the freedom in the microresonator design and may make it possible to extend Kerr comb generation into the visible, where material dispersion is likely to dominate.