Ultra stable all-fiber telecom-band entangled photon-pair source for turnkey quantum communication applications

被引：34

作者：

Liang, Chuang ^{[1
]}

Lee, Kim Fook ^{[1
]}

Levin, Todd ^{[1
]}

Chen, Jun ^{[1
]}

Kumar, Prem ^{[1
]}

机构：

[1] Northwestern Univ, Ctr Photon Commun & Comp, Dept Elect Engn & Comp Sci, Evanston, IL 60208 USA

来源：

OPTICS EXPRESS | 2006年 / 14卷 / 15期

关键词：

D O I：

10.1364/OE.14.006936

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate a novel alignment-free all-fiber source for generating telecom-band polarization-entangled photon pairs. Polarization entanglement is created by injecting two relatively delayed, orthogonally polarized pump pulses into a piece of dispersion-shifted fiber, where each one independently engages in four-photon scattering, and then removing any distinguishability between the correlated photon-pairs produced by each pulse at the fiber output. Our scheme uses a Michelson-interferometer configuration with Faraday mirrors to achieve practically desirable features such as ultra-stable performance and turnkey operation. Up to 91.7% two-photon-interference visibility is observed without subtracting the accidental coincidences that arise from background photons while operating the source at room temperature. (c) 2005 Optical Society of America.

引用

页码：6936 / 6941

页数：6

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