Narrowband photon pair source for quantum networks

被引：28

作者：

Monteiro, F. ^{[1
]}

Martin, A. ^{[1
]}

Sanguinetti, B. ^{[1
]}

Zbinden, H. ^{[1
]}

Thew, R. T. ^{[1
]}

机构：

[1] Univ Geneva, Appl Phys Grp, CH-1211 Geneva 4, Switzerland

来源：

OPTICS EXPRESS | 2014年 / 22卷 / 04期

关键词：

Photons - Dense wavelength division multiplexing - Niobium compounds;

D O I：

10.1364/OE.22.004371

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate a compact photon pair source based on a periodically poled lithium niobate nonlinear crystal in a short cavity. This approach provides efficient, low-loss, mode selection that is compatible with standard telecommunication networks. Photons with a coherence time of 8.6 ns (116 MHz) are produced and their purity is demonstrated. A source brightness of 134 pairs (s. mW. MHz)(-1) is reported. The cavity parameters are chosen such that the photon pair modes emitted can be matched to telecom ultra dense wavelength division multiplexing (U-DWDM) channel spacings. The high level of purity and compatibility with standard telecom networks is of great importance for complex quantum communication networks. (C) 2014 Optical Society of America

引用

页码：4371 / 4378

页数：8

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