Papp Scott B, Del'Haye Pascal, Diddams Scott A
National Institute of Standards and Technology, Boulder, Colorado 80305, USA.
Opt Express. 2013 Jul 29;21(15):17615-24. doi: 10.1364/OE.21.017615.
We have investigated parametric seeding of a microresonator frequency comb (microcomb) by way of a pump laser with two electro-optic-modulation sidebands. We show that the pump-sideband spacing is precisely replicated throughout the microcomb's optical spectrum, and we demonstrate a record absolute line-spacing stability for microcombs of 1.6 × 10(-13) at 1 s. The spectrum of a microcomb is complex, and often non-equidistant subcombs are observed. Our results demonstrate that parametric seeding can not only control the subcombs, but can lead to the generation of a strictly equidistant microcomb spectrum.
我们通过具有两个电光调制边带的泵浦激光器研究了微谐振器频率梳（微梳）的参量种子注入。我们表明，泵浦边带间距在整个微梳的光谱中被精确复制，并且我们展示了微梳在1秒时创纪录的1.6×10⁻¹³的绝对线间距稳定性。微梳的光谱很复杂，并且经常会观察到非等距的子梳。我们的结果表明，参量种子注入不仅可以控制子梳，而且可以导致产生严格等距的微梳光谱。
