All-fiber multiplexed source of high-purity single photons
All-fiber multiplexed source of high-purity single photons
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DOI：
10.1364/optica.3.001270
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发表时间：
2016-11-20
期刊：
影响因子：
10.4
通讯作者：
Mosley, Peter J.
中科院分区：
文献类型：
--
作者：
Francis-Jones, Robert J. A.;Hoggarth, Rowan A.;Mosley, Peter J.
基于自发光子对产生的单光子源使量子物理学的开创性实验成为可能。然而，下一代光子量子技术需要更高的光子生成概率，这些光子处于能够进行高可见度干涉的良好控制的纯态。我们利用定制的光纤技术开发了几乎无污染的光源，在电信单模光纤中提供高纯度的单光子。由此获得的低损耗光学延迟使我们能够主动路由来自两个几乎相同的源的预示输出，以提高单个光子相对于单个源的传递概率。我们的研究结果表明，如何规模的光子量子技术可能会增加通过导波复用的高纯度光子。(C)2016美国光学学会
Single-photon sources based on spontaneous photon-pair generation have enabled pioneering experiments in quantum physics. However, next-generation photonic quantum technologies require higher generation probabilities of photons in well-controlled pure states capable of high-visibility interference. We have harnessed bespoke fiber technology to develop virtually alignment-free sources that deliver high-purity heralded single photons in telecoms single-mode fiber. The resulting access to low-loss optical delay enabled us to actively route the heralded output from two almost identical sources to enhance the delivery probability of single photons relative to one individual source. Our results indicate how the scale of photonic quantum technologies might be increased via guided-wave multiplexing of high-purity photons. (C) 2016 Optical Society of America