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arXiv · 1510.02199

Generation of nondegenerate narrow-band photon pairs for hybrid quantum network

Jian Wang·Peng-YinJie Lv·Jin-Ming Cui·Bi-Heng Liu·Jian-Shun Tang·Yun-Feng Huang·Chuan-Feng Li·Guang-Can Guo
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Abstract

In a hybrid quantum network, linking two kinds of quantum nodes through photonic channels requires excellent matching of central frequency and bandwidth between both nodes and their interfacing photons. However, pre-existing photon sources can not 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 frequencies of 4 MHz at 935 nm and 5 MHz at 880 nm for the signal and idler photons respectively, with a normalized spectrum brightness of 4.9/s/MHz/mW. Due to the ability of being independently locked to two different wavelenghts, the conjoined double-cavity is universally suitable for hybrid quantum network consisting of various quantum nodes.

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Jian Wang, Peng-YinJie Lv, Jin-Ming Cui, Bi-Heng Liu, Jian-Shun Tang, Yun-Feng Huang, Chuan-Feng Li, Guang-Can Guo. 2015-10-08. Generation of nondegenerate narrow-band photon pairs for hybrid quantum network. https://arxiv.org/abs/1510.02199

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