Narrowband polarization-entangled photon pairs distributed over a WDM link for qubit networks

被引：33

作者：

Sauge, S.

Swillo, M.

Albert-Seifried, S.

Xavier, G. B.

Waldeback, J.

Tengner, M.

Ljunggren, D.

Karlsson, A.

机构：

[1] Royal Inst Technol, Dept Microelect & Informat Technol, SE-16440 Kista, Sweden

[2] Pontificia Univ Catolica Rio de Janeiro, Ctr Telecommun Studies, BR-22453900 Rio De Janeiro, Brazil

来源：

OPTICS EXPRESS | 2007年 / 15卷 / 11期

关键词：

D O I：

10.1364/OE.15.006926

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a bright, narrowband, portable, quasi-phase- matched two-crystal source generating polarization- entangled photon pairs at 809 nm and 1555 nm at a maximum rate of 1.2 x 10(6) s(-1) THz(-1) mW(-1) after coupling to single- mode fiber. The quantum channel at 1555 nm and the synchronization signal gating the single photon detector are multiplexed in the same optical fiber of length 27 km by means of wavelength division multiplexers (WDM) having 100 GHz (0.8 nm) spacing between channels. This implementation makes quantum communication applications compatible with current high-speed optical networks.

引用

页码：6926 / 6933

页数：8

共 15 条

[1] Quantum repeaters:: The role of imperfect local operations in quantum communication [J].