Time-multiplexed measurements of nonclassical light at telecom wavelengths

Time-multiplexed measurements of nonclassical light at telecom wavelengths
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电信波长非经典光的时分复用测量

DOI:
10.1103/physreva.90.042105
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发表时间:
2014
期刊:
影响因子:
2.9
通讯作者:
L. L. Sánchez-Soto
L. L. Sánchez-Soto
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
G. Harder;C. Silberhorn;J. Rehacek;Z. Hradil;L. Motka;B. Stoklasa;L. L. Sánchez-Soto

文献摘要

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我们报道了在周期性极化磷酸钛酸钾波导中,在电信波长下具有几乎完美光子数相关性的超快脉冲II型参数下转换源的统计特性的实验重建。我们使用基于光纤装置和一对雪崩光电二极管的光子数分辨时间复用检测器。通过采用相关的数据模式层析成像,我们以前所未有的精度评估了非经典光态的性质。
We report the experimental reconstruction of the statistical properties of an ultrafast pulsed type II parametric down-conversion source in a periodically poled potassium titanyl phosphate waveguide at telecom wavelengths, with almost perfect photon-number correlations. We use a photon-number-resolving time-multiplexed detector based on a fiber-optical setup and a pair of avalanche photodiodes. By resorting to a germane data-pattern tomography, we assess the properties of the nonclassical light states with unprecedented precision.