High-visibility two-photon interference at a telecom wavelength using picosecond-regime separated sources

被引：55

作者：

Aboussouan, Pierre ^{[1
]}

Alibart, Olivier ^{[1
]}

Ostrowsky, Daniel B. ^{[1
]}

Baldi, Pascal ^{[1
]}

Tanzilli, Sebastien ^{[1
]}

机构：

[1] Univ Nice Sophia Antipolis, Lab Phys Matiere Condensee, CNRS UMR 6622, F-06108 Nice 2, France

来源：

PHYSICAL REVIEW A | 2010年 / 81卷 / 02期

关键词：

PHOTONS; SYNCHRONIZATION;

D O I：

10.1103/PhysRevA.81.021801

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report on a two-photon interference experiment in a quantum relay configuration using two picosecond regime periodically poled lithium niobate (PPLN) waveguide based sources emitting paired photons at 1550 nm. The results show that the picosecond regime associated with a guided-wave scheme should have important repercussions for quantum relay implementations in real conditions, essential for improving both the working distance and the efficiency of quantum cryptography and networking systems. In contrast to already reported regimes, namely, femtosecond and CW, it allows achieving a 99% net visibility two-photon interference while maintaining a high effective photon pair rate using only standard telecom components and detectors.

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页数：4

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