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arXiv 1207.2134physics.optics
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利用光脉冲整形在部分相干微腔频率梳中探测

Probing Within Partially Coherent Microcavity Frequency Combs via Optical Pulse Shaping

Fahmida Ferdous, Houxun Miao, Pei-Hsun Wang, Daniel E. Leaird, Kartik Srinivasan, Lei Chen, Vladimir Aksyuk, Andrew M. Weiner

摘要:

基于级联四波混频的微腔频率梳的最新研究揭示了光谱的演化与观测到的时间相干性之间的联系。在这里,我们研究了氮化硅微谐振器,其中初始四波混频边带由多个自由光谱范围(FSR)从泵浦间隔开,然后填充,以产生具有单个FSR间距的梳,从而导致部分相干。通过使用一个脉冲整形器来选择和操纵的相位的各种子集的谱线,我们能够探测的结构内的部分相干comb.Our的数据表现出强烈的变化,在不同群体的线之间的相互相干的程度,并提供支持的一个简单的模型部分相干的梳形成。

英文摘要:

Recent investigations of microcavity frequency combs based on cascaded four-wave mixing have revealed a link between the evolution of the optical spectrum and the observed temporal coherence. Here we study a silicon nitride microresonator for which the initial four-wave mixing sidebands are spaced by multiple free spectral ranges (FSRs) from the pump, then fill in to yield a comb with single FSR spacing, resulting in partial coherence. By using a pulse shaper to select and manipulate the phase of various subsets of spectral lines, we are able to probe the structure of the coherence within the partially coherent comb. Our data demonstrate strong variation in the degree of mutual coherence between different groups of lines and provide support for a simple model of partially coherent comb formation.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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