Ultra-bright multiplexed energy-time entangled photon generation from lithium niobate on insulator chip

• URL: http://arxiv.org/abs/2012.06092v1
• Date: Fri, 11 Dec 2020 03:05:33 GMT
• Title: Ultra-bright multiplexed energy-time entangled photon generation from lithium niobate on insulator chip
• Authors: Guang-Tai Xue, Yun-Fei Niu, Xiaoyue Liu, Jia-Chen Duan, Wenjun Chen, Ying Pan, Kunpeng Jia, Xiaohan Wang, Hua-Ying Liu, Yong Zhang, Ping Xu, Gang Zhao, Xinlun Cai, Yan-Xiao Gong, Xiaopeng Hu, Zhenda Xie, and Shining Zhu
• Abstract summary: A 130-nm broad bandwidth is engineered for 8-channel multiplexed energy-time entanglement. These data are boosted by over two orders of magnitude compared to existing technologies.
• Score: 12.858852504077554
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• 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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