Highly Efficient Single-Pass Source of Pulsed Single-Mode Twin Beams of Light

被引：184
|
作者：
Eckstein, Andreas [1 ]
Christ, Andreas [1 ,2 ]
Mosley, Peter J. [1 ]
Silberhorn, Christine [1 ,2 ]
机构：
[1] Max Planck Inst Sci Light, D-91054 Erlangen, Germany
[2] Univ Paderborn, D-33098 Paderborn, Germany
来源：
PHYSICAL REVIEW LETTERS | 2011年 / 106卷 / 01期
关键词：
WAVE-GUIDE; SQUEEZED STATES; GENERATION;
D O I：
10.1103/PhysRevLett.106.013603
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We report the realization of a bright ultrafast type II parametric down-conversion source of twin beams free of any spatiotemporal correlations in a periodically poled KTiOPO4 (PP-KTP) waveguide. From a robust, single-pass setup it emits pulsed two-mode squeezed vacuum states: photon-number entangled pairs of single-mode pulses or, in terms of continuous variables quantum optics, pulsed Einstein-Podolsky-Rosen states in the telecom wavelength regime. We verify the single-mode character of our source by measuring Glauber correlation functions g((2)) and demonstrate with a pump energy as low as 75 pJ per pump pulse a mean photon number of 2.5.
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页数：4
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