Generation of ultrabright tunable polarization entanglement without spatial, spectral, or temporal constraints

被引：93

作者：

Fiorentino, M ^{[1
]}

Messin, G ^{[1
]}

Kuklewicz, CE ^{[1
]}

Wong, FNC ^{[1
]}

Shapiro, JH ^{[1
]}

机构：

[1] MIT, Elect Res Lab, Cambridge, MA 02139 USA

来源：

PHYSICAL REVIEW A | 2004年 / 69卷 / 04期

关键词：

D O I：

10.1103/PhysRevA.69.041801

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The need for spatial and spectral filtering in the generation of polarization entanglement is eliminated by combining two coherently driven type-II spontaneous parametric down-converters. The resulting ultrabright source emits photon pairs that are polarization entangled over the entire spatial cone and spectrum of emission. We detect a flux of similar to12 000 polarization-entangled pairs/s per mW of pump power at 90% quantum-interference visibility, and the source can be temperature tuned for 5 nm around frequency degeneracy. The output state is actively controlled by precisely adjusting the relative phase of the two coherent pumps.

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收藏

页码：041801 / 1

页数：4

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