Chinese Optics Letters, 2020, 18 (12): 121902, Published Online: Oct. 23, 2020  

Robust second-order correlation of twin parametric beams generated by amplified spontaneous parametric down-conversion Download: 680次

Author Affiliations
1 National Laboratory of Solid State Microstructures, School of Physics, School of Electronic Science and Engineering, College of Engineering and Applied Sciences, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
2 Institute for Quantum Information and State Key Laboratory of High Performance Computing, College of Computing, National University of Defense Technology, Changsha 410073, China
3 Mesoscopic Optics and Quantum Electronics Laboratory, University of California Los Angeles, California, CA 90095, USA
Abstract
We report an observation of the second-order correlation between twin beams generated by amplified spontaneous parametric down-conversion operating above threshold with kilowatt-level peak power, from a periodically poled LiTaO3 crystal via a single-pass scheme. Photocurrent correlation was measured because of the bright photon streams, with raw visibility of 37.9% or 97.3% after electronic filtering. As expected in our theory, this correlation is robust and insensitive to parametric gain and detection loss, enabling important applications in optical communications, precision measurement, and nonlocal imaging.

Kunpeng Jia, Xiaohan Wang, Xinjie Lü, Ping Xu, Zhenlin Wang, Chee Wei Wong, Gang Zhao, Yan-Xiao Gong, Zhenda Xie, Shining Zhu. Robust second-order correlation of twin parametric beams generated by amplified spontaneous parametric down-conversion[J]. Chinese Optics Letters, 2020, 18(12): 121902.

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