Post-selection free, integrated optical source of non-degenerate, polarization entangled photon pairs

被引：64

作者：

Herrmann, Harald ^{[1
,2
]}

Yang, Xu ^{[1
]}

Thomas, Abu ^{[2
]}

Poppe, Andreas ^{[3
]}

Sohler, Wolfgang ^{[2
]}

Silberhorn, Christine ^{[1
]}

机构：

[1] Univ Paderborn, Integrated Quantum Opt Grp, D-33095 Paderborn, Germany

[2] Univ Paderborn, Appl Phys Integrated Opt Grp, D-33095 Paderborn, Germany

[3] AIT Austrian Inst Technol GmbH, A-1220 Vienna, Austria

来源：

OPTICS EXPRESS | 2013年 / 21卷 / 23期

关键词：

GENERATION; LINBO3;

D O I：

10.1364/OE.21.027981

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present an integrated source of polarization entangled photon pairs in the telecom regime, which is based on type II-phasematched parametric down-conversion (PDC) in a Ti-indiffused waveguide in periodically poled lithium niobate. The domain grating - consisting of an interlaced bi-periodic structure - is engineered to provide simultaneous phase-matching of two PDC processes, and enables the direct generation of non-degenerate, polarization entangled photon pairs with a brightness of B = 7 x 10(3) pairs/(s x mW x GHz). The spatial separation of the photon pairs is accomplished by a fiber-optical multiplexer facilitating a high compactness of the overall source. Visibilities exceeding 95 % and a violation of the Bell inequality with S = 2.57 +/- 0.06 could be demonstrated. (C) 2013 Optical Society of America

引用

页码：27981 / 27991

页数：11

共 20 条

[1] PROPOSED EXPERIMENT TO TEST LOCAL HIDDEN-VARIABLE THEORIES [J].