Fast and simple characterization of a photon pair source
Fast and simple characterization of a photon pair source
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DOI：
10.1364/oe.16.017060
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发表时间：
2008-10-13
期刊：
影响因子：
3.8
通讯作者：
Tittel, W.
中科院分区：
文献类型：
--
作者：
Bussieres, F.;Slater, J. A.;Tittel, W.
我们提出了光子对概率源的检测统计的精确模型，从中演示了一种快速、简单且精确的测量源亮度和光子通道传输的方法。我们测量了基于周期性极化 LiNbO3 晶体中自发参量下转换的光源的此类特性，该晶体在 810 和 1550 nm 波长处产生对。我们通过比较单光子源在较宽亮度范围内的 g((2))( 0) 的预测值和测量值来进一步验证模型。我们的模型特别适用于根据各种量子通信应用的需要监控和调节亮度。我们评论其对涉及光谱和/或空间过滤的源的适用性。 (C) 2008 美国光学学会
We present an exact model of the detection statistics of a probabilistic source of photon pairs from which a fast, simple and precise method to measure the source's brightness and photon channel transmissions is demonstrated. We measure such properties for a source based on spontaneous parametric downconversion in a periodically poled LiNbO3 crystal producing pairs at 810 and 1550 nm wavelengths. We further validate the model by comparing the predicted and measured values for the g((2))( 0) of a heralded single photon source over a wide range of the brightness. Our model is of particular use for monitoring and tuning the brightness on demand as required for various quantum communication applications. We comment on its applicability to sources involving spectral and/or spatial filtering. (C) 2008 Optical Society of America