All-fiber photon-pair source for quantum communications

被引:232
作者
Fiorentino, M [1 ]
Voss, PL [1 ]
Sharping, JE [1 ]
Kumar, P [1 ]
机构
[1] Northwestern Univ, Ctr Photon Commun & Comp, ECE Dept, Evanston, IL 60208 USA
关键词
fiber four-wave mixing; parametric amplifiers; photon counting; quantum communication; quantum cryptography;
D O I
10.1109/LPT.2002.1012406
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In this letter, we present a source of quantum-correlated photon pairs based on parametric fluorescence in a fiber Sagnac loop. The photon pairs are generated in the 1550-nm fiber-optic communication band and detected with InGaAs-InP avalanche photodiodes operating in a gated Geiger mode. A generation rate > 10(3) pairs/s is observed, which is limited by the detection electronics at present. We also demonstrate the nonclassical nature of the photon correlations in the pairs. This source, given its spectral properties and robustness, is well suited for use in fiber-optic quantum communication and cryptography networks.
引用
收藏
页码:983 / 985
页数:3
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