A quantum pulse gate based on spectrally engineered sum frequency generation

被引：187

作者：

Eckstein, Andreas ^{[1
]}

Brecht, Benjamin ^{[2
]}

Silberhorn, Christine ^{[2
]}

机构：

[1] Max Planck Inst Sci Light, D-91054 Erlangen, Germany

[2] Univ Paderborn, D-33098 Paderborn, Germany

来源：

OPTICS EXPRESS | 2011年 / 19卷 / 15期

关键词：

SINGLE-PHOTON DETECTION; WAVE-GUIDE; INFORMATION; HOMODYNE; NOISE;

D O I：

10.1364/OE.19.013770

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We introduce the concept of a quantum pulse gate (QPG), a method for accessing the intrinsic broadband spectral mode structure of ultrafast quantum states of light. This mode structure can now be harnessed for applications in quantum information processing. We propose an implementation in a PPLN waveguide, based on spectrally engineered sum frequency generation (SFG). It allows us to pick well-defined spectral broadband modes from an ultrafast multi-mode state for interconversion to a broadband mode at another frequency. By pulse-shaping the bright SFG pump beam, different orthogonal broadband modes can be addressed individually and extracted with high fidelity. (C) 2011 Optical Society of America

引用

页码：13770 / 13778

页数：9

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