Effective fiber-coupling of entangled photons for quantum communication

被引：70

作者：

Bovino, FA

Varisco, P

Colla, AM

Castagnoli, G

Di Giuseppe, G

Sergienko, AV

机构：

[1] Elsag Spa, I-16154 Genoa, Italy

[2] Boston Univ, Dept Elect & Comp Engn, Quantum Imaging Lab, Boston, MA 02215 USA

[3] Boston Univ, Dept Phys, Boston, MA 02215 USA

来源：

OPTICS COMMUNICATIONS | 2003年 / 227卷 / 4-6期

基金：

美国国家科学基金会;

关键词：

parametric down-conversion; entanglement; quantum communication;

D O I：

10.1016/j.optcom.2003.09.064

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report on theoretical and experimental demonstration of high-efficiency coupling of two-photon entangled states produced in the nonlinear process of spontaneous parametric down conversion into a single-mode fiber. We determine constraints for the optimal coupling parameters. This result is crucial for practical implementation of quantum key distribution protocols with entangled states. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：343 / 348

页数：6

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