偏振光纤光源的宽带偏振纠缠光子对。

Poled-fiber source of broadband polarization-entangled photon pairs.

出版信息

Opt Lett. 2013 Nov 1;38(21):4397-400. doi: 10.1364/OL.38.004397.

DOI:10.1364/OL.38.004397

Abstract

We demonstrate broadband polarization-entangled photon pair generation in a poled fiber phase matched for Type II downconversion in the 1.5 μm telecom band. Even with signal-idler separation greater than 100 nm, we observe fringe visibilities greater than 97% and tangle greater than 0.8. A Hong-Ou-Mandel interference experiment is also used to experimentally confirm the broadband nature of the entanglement.

摘要

我们在 1.5 μm 电信波段中演示了在用于 II 型下转换的极化光纤中的宽带偏振纠缠光子对产生。即使信号-本底分离大于 100nm，我们观察到的条纹可见度大于 97%，纠缠度大于 0.8。Hong-Ou-Mandel 干涉实验也被用于实验证实了纠缠的宽带性质。