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arXiv 1509.01262quant-ph
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电信波段下转换光子对的光谱相关

Spectral correlation in down-converted photon pairs at telecom wavelength

Andrzej Gajewski, Piotr Kolenderski

摘要:

基于自发参量下转换过程的光子对源通常用于长距离量子通信。提高透射范围的关键特征是设计它们的光谱特性。在两篇实验论文之后[Opt. Lett.,38,697(2013)]和[Opt. Lett.,39,1481(2014)],我们解析地和数值地分析源的特性。它是基于$β$ -硼酸钡(BBO)晶体,在简并频率755 nm $\rightarrow$ 1550 nm + 1550 nm下切割用于II型相位匹配。我们的分析显示了一种方法,在一个光纤耦合的光子对同时与最佳亮度的光谱相关性的完全控制。

英文摘要:

Sources of photon pairs based on the spontaneous parametric down conversion process are commonly used for long distance quantum communication. The key feature for improving the range of transmission is engineering their spectral properties. Following two experimental papers [Opt. Lett., 38, 697 (2013)] and [Opt. Lett., 39, 1481 (2014)] we analytically and numerically analyze the characteristics of a source. It is based on a $β$-barium borate (BBO) crystal cut for type II phase matching at the degenerated frequencies 755 nm $\rightarrow$ 1550 nm + 1550 nm. Our analysis shows a way for full control of spectral correlation within a fiber-coupled photon pair simultaneously with optimal brightness.

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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