AI 中文总结
研究高Q值氮化硅微腔双光子发射的光谱相干性，结合时间关联与相位敏感测量监测发射线宽演化，为优化可扩展量子网络集成光源提供关键表征。
AI 中文摘要
高Q值氮化硅微腔是通过四波混频产生光子对的通用光源。我们研究该过程的光谱相干性，追踪从自发量子 regime 到光参量振荡起始的转变。通过将时间关联测量与相位敏感测量相结合，我们持续监测发射线宽从腔寿命限制线宽向泵浦线宽尺度演化的过程。这种表征对优化可扩展量子网络的集成光源至关重要。
英文摘要
High-Q silicon nitride microresonators are versatile sources for generating photon pairs via four-wave mixing. We investigate the spectral coherence of this process, tracking the transition from the spontaneous quantum regime to the onset of optical parametric oscillation. By combining time-correlation measurements with phase-sensitive measurements, we continuously monitor the emission linewidth as it evolves from a cavity-lifetime-limited linewidth toward the pump-linewidth scale. This characterization is essential for optimizing integrated sources for scalable quantum networks.
Comments15 pages main text. The file contains also 10pages of supplementary material
