arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0808.2674quant-ph
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光子对源的快速简单表征

Fast and simple characterization of a photon pair source

Felix Bussieres, Joshua A. Slater, Nicolas Godbout, Wolfgang Tittel

摘要:

我们提出了一个精确的检测统计的概率源的光子对的模型,从一个快速,简单和精确的方法来测量源的亮度和光子通道传输演示。我们测量这样的属性为源的基础上自发的参数下转换周期性极化铌酸锂$_3$晶体在810和1550 nm的波长产生对。我们进一步验证了该模型通过比较预测值和测量值的$g^{(2)}(0)$的预示单光子源在很宽的亮度范围。我们的模型特别适用于监测和调整各种量子通信应用所需的亮度。我们评论它的适用性,涉及光谱和/或空间滤波源。

英文摘要:

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 LiNbO$_3$ 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.

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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