论文标题
通过使用三阶段的非线性干涉仪，生成具有高发音效率的纯态单光子
Generation of pure-state single photons with high heralding efficiency by using a three-stage nonlinear interferometer
论文作者
论文摘要
我们通过实验研究了基于纤维的三阶段非线性干涉仪，并通过光谱工程以高效率和纯度生成了其在产生预示的单光子时的应用。我们在0.039光子/脉冲的亮度下获得90％的先驱效率。源的纯度通过两光子Hong-ou-mandel干扰检查，可见度为95％+-6％（纠正拉曼散射和多对事件之后）。我们的研究表明，三阶段的非线性干涉仪产生的预示源具有高纯度，高发音效率，高亮度，亮度和灵活性的优势，并且在波长和带宽选择方面具有柔韧性。
We experimentally study a fiber-based three-stage nonlinear interferometer and demonstrate its application in generating heralded single photons with high efficiency and purity by spectral engineering. We obtain a heralding efficiency of 90% at a brightness of 0.039 photons/pulse. The purity of the source is checked by two-photon Hong-Ou-Mandel interference with a visibility of 95%+-6% (after correcting Raman scattering and multi-pair events). Our investigation indicates that the heralded source of single photons produced by the three-stage nonlinear interferometer has the advantages of high purity, high heralding efficiency, high brightness, and flexibility in wavelength and bandwidth selection.
