Guang-Tai Xue, Y. Niu, Xiaoyue Liu, Jiachen Duan, Wenjun Chen, Ying Pan, Kunpeng Jia, Xiaohan Wang, Hua-Ying Liu, Yong Zhang, P. Xu, G. Zhao, Xinlun Cai, Y. Gong, Xiaopeng Hu, Zhenda Xie, Shi-ning Zhu
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引用次数: 29
Abstract
High-flux entangled photon source is the key resource for quantum optical study and application. Here it is realized in a lithium niobate on isolator (LNOI) chip, with 2.79*10^11 Hz/mW photon pair rate and 1.53*10^9 Hz/nm/mW spectral brightness. These data are boosted by over two orders of magnitude compared to existing technologies. A 130-nm broad bandwidth is engineered for 8-channel multiplexed energy-time entanglement. Harnessed by high-extinction frequency correlation and Franson interferences up to 99.17% visibility, such energy-time entanglement multiplexing further enhances high-flux data rate, and warrants broad applications in quantum information processing on a chip.
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