High coherence photon pair source for quantum communication

被引：57

作者：

Halder, Matthaeus ^{[1
]}

Beveratos, Alexios ^{[2
]}

Thew, Robert T. ^{[1
]}

Jorel, Corentin ^{[1
]}

Zbinden, Hugo ^{[1
]}

Gisin, Nicolas ^{[1
]}

机构：

[1] Univ Geneva, Appl Phys Grp, CH-1211 Geneva, Switzerland

[2] LPN CNRS, F-91460 Marcoussis, France

来源：

NEW JOURNAL OF PHYSICS | 2008年 / 10卷

关键词：

D O I：

10.1088/1367-2630/10/2/023027

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

This paper reports a novel single mode source of narrow-band entangled photon pairs at telecom wavelengths under continuous wave (CW) excitation, based on parametric down conversion. For only 7mW of pump power it has a created spectral radiance of 0.08 pairs per coherence length and a bandwidth of 10 pm (1.2 GHz). The effectively emitted spectral brightness reaches 3.9 x 10(5) pairs s(-1) pm(-1). Furthermore, when combined with low jitter single photon detectors, such sources allow for the implementation of quantum communication protocols without any active synchronization or path length stabilization. A Hong-Ou-Mandel (HOM)-dip with photons from two autonomous CW sources has been realized demonstrating the setup's stability and performance.

引用

页数：12

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