Stroud Jasper R, Simon James B, Wagner Gerd A, Plusquellic David F
Opt Express. 2021 Oct 11;29(21):33155-33170. doi: 10.1364/OE.434482.
A chirped-pulse interleaving method is reported for generation of dual optical frequency combs based on electro-optic phase modulators (EOM) in a free-running all-fiber based system. Methods are discussed to easily modify the linear scan rate and comb resolution by more than three orders of magnitude and to significantly increase the spectral bandwidth coverage. The agility of the technique is shown to both capture complex line shapes and to magnify rapid passage effects in spectroscopic and molecular dynamics studies of CO. These methods are well-suited for applications in the areas of remote sensing of greenhouse gas emissions, molecular reaction dynamics, and sub-Doppler studies across the wide spectral regions accessible to EOMs.
报道了一种基于自由运行的全光纤系统中的电光相位调制器（EOM）产生双光频梳的啁啾脉冲交织方法。讨论了通过超过三个数量级轻松修改线性扫描速率和梳状分辨率以及显著增加光谱带宽覆盖范围的方法。该技术的灵活性被证明既可以捕获复杂的线形，又可以在一氧化碳的光谱和分子动力学研究中放大快速通过效应。这些方法非常适合应用于温室气体排放遥感、分子反应动力学以及在EOM可及的宽光谱区域进行的亚多普勒研究等领域。
