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
amplified spontaneous parametric down-conversion robust second-order correlation high-gain twin beams
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.