Characterization of a fiber-based source of heralded single photons
Characterization of a fiber-based source of heralded single photons
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DOI：
10.1103/physreva.83.053843
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发表时间：
2011-05
影响因子：
2.9
通讯作者：
Y. Lei;Xiao-Xin Ma;Xueshi Guo;Cui Liang;Xiaoying Li
中科院分区：
文献类型：
--
作者：
Y. Lei;Xiao-Xin Ma;Xueshi Guo;Cui Liang;Xiaoying Li
从宽带脉冲泵浦下Bogoliubov变换的导出表达式出发，从理论上描述了基于脉冲泵浦在光纤中通过自发四波混频产生的信号光子对和闲频光子对的预示单光子源。分析和讨论了二阶强度相关函数、预告效率、不可分辨性和预告单光子亮度随光源参数的变化关系。实验结果证实了理论分析和计算的正确性。这些研究对于优化光源参数和研制适合于量子信息处理的单光子源具有重要意义。
Starting from the derived expression of the Bogoliubov transformation for a broadband pulsed pump, we theoretically characterize the heralded single-photon source, which is based on the signal and idler photon pairs produced in optical fiber via spontaneous four-wave mixing by a pulsed pump. The second-order intensity correlation function, heralding efficiency, indistinguishability, and brightness of the heralded single photons as a function of source parameters, are analyzed and discussed. The validity of the theoretical analysis and calculations are confirmed by the experimental results. The investigations are useful for optimizing the source parameters and for developing a single-photon source suitable for quantum-information processing.