Generation of Nondegenerate Narrow-Band Photon Pairs for a Hybrid Quantum Network

被引:5
|
作者
Wang, Jian [1 ]
Lv, Peng-YinJie
Cui, Jin-Ming
Liu, Bi-Heng
Tang, Jian-Shun
Huang, Yun-Feng
Li, Chuan-Feng
Guo, Guang-Can
机构
[1] Univ Sci & Technol China, CAS, Key Lab Quantum Informat, Hefei 230026, Peoples R China
来源
PHYSICAL REVIEW APPLIED | 2015年 / 4卷 / 06期
基金
中国国家自然科学基金;
关键词
PARAMETRIC DOWN-CONVERSION; SINGLE PHOTONS; ENTANGLEMENT; STORAGE; TIME;
D O I
10.1103/PhysRevApplied.4.064011
中图分类号
O59 [应用物理学];
学科分类号
摘要
In a hybrid quantum network, the linking of two types of quantum nodes through photonic channels requires excellent matching of the central frequency and bandwidth between both nodes and their interfacing photons. However, preexisting photon sources cannot fulfill this requirement. Using a novel conjoined double-cavity strategy, we report the generation of nondegenerate narrow-band photon pairs by cavity-enhanced spontaneous parametric down-conversion. The central frequencies and bandwidths of the signal and idler photons are independently set to match with trapped ions and solid-state quantum memories. With this source we achieve the bandwidths and central wavelengths of 4 MHz at 935 nm and 5 MHz at 880 nm for the signal and idler photons, respectively, with a normalized spectral brightness of 4.9 photon pairs/(s MHz mW). Because of its ability to be independently locked to two different wavelengths, the conjoined double cavity is universally suitable for a hybrid quantum network consisting of various quantum nodes.
引用
收藏
页数:6
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