Observation of photon-pair generation in the normal group-velocity-dispersion regime with slight detuning from the pump wavelength

被引：13
作者：
Park, Kyungdeuk [1 ]
Lee, Dongj In [1 ]
Ihn, Yong Sup [1 ]
Kim, Yoon-Ho [1 ]
Shin, Heedeuk [1 ]
机构：
[1] Pohang Univ Sci & Technol POSTECH, Dept Phys, Pohang 37673, South Korea
来源：
NEW JOURNAL OF PHYSICS | 2018年 / 20卷
基金：
新加坡国家研究基金会;
关键词：
photon-pair generation; spontaneous four-wave mixing; phase matching condition; normal group-velocity dispersion; CRYSTAL FIBER; SINGLE PHOTONS; SHIFTED FIBER; QUANTUM COMMUNICATIONS; CONVERSION;
D O I：
10.1088/1367-2630/aae172
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A fiber-based photon-pair source in the telecom C-band is suitable for quantum information science including quantum communications. Spontaneous four-wave mixing effects are known to create photon pairs that are slightly detuned from the pump wavelength only in the anomalous group-velocity-dispersion (GVD) regime. Here, we achieve high-quality photon-pair generation slightly detuned from the pump wavelength in the normal GVD regime through a dispersion shifted fiber, for the first time. The photon pairs in C-band exhibit strong temporal correlation with each other and excellent heralded anti-bunching property. This photon-pair generation scheme can be exploited as telecom-band quantum light sources for quantum information applications.
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页数：7
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