期刊
OPTICS LETTERS
卷 44, 期 15, 页码 3613-3616出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.44.003613
关键词
-
类别
资金
- National Key R&D Program of China [2016YFA0301403]
- National Natural Science Foundation of China (NSFC) [11774209, 61378010]
- Key R&D Project of Shanxi Province [201803D121065]
- Shanxi [1331KSC]
We present and demonstrate a high-efficiency and compact scheme for generating Gaussian-modulated Einstein Podolsky-Rosen (EPR) entangled optical fields by injecting a modulated signal field into a non-degenerate optical parametric amplifier (NOPA). We perform a quantum analysis of the scheme and derive the variance of the output signal (idler) mode and the quantum entanglement between the signal and idler modes from the NOPA. An experimental study is presented with different Gaussian modulation depths, showing that the modulation of the injected signal field successfully enlarges the distribution of the field quadratures of the EPR source in phase space and has a negligible effect on the entanglement quality. The experimental observations have good agreement with the theoretical analysis. Our scheme can be used readily in continuous variable quantum key distribution protocol. (c) 2019 Optical Society of America
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据