Versatile quantum microwave photonic signal processing platform based on coincidence window selection technique  

作　　者：Xinghua Li Yifan Guo Xiao Xiang Runai Quan Mingtao Cao Ruifang Dong Tao Liu Ming Li Shougang Zhang 

机构地区：[1]Chinese Academy of Sciences,National Time Service Center,Key Laboratory of Time Reference and Applications,Xi’an,China [2]University of Chinese Academy of Sciences,School of Astronomy and Space Science,Beijing,China [3]Hefei National Laboratory,Hefei,China [4]Chinese Academy of Sciences,Institute of Semiconductors,State Key Laboratory on Integrated Optoelectronics,Beijing,China [5]University of Chinese Academy of Sciences,School of Electronic,Electrical and Communication Engineering,Beijing,China [6]University of Chinese Academy of Sciences,Center of Materials Science and Optoelectronics Engineering,Beijing,China

出　　处：《Advanced Photonics Nexus》2024年第5期130-139,共10页先进光子学通讯（英文）

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.12033007,61801458,12103058,12203058,12074309,and 61875205);the Youth Innovation Promotion Association,CAS(Grant Nos.2021408,2022413,and 2023425);the China Postdoctoral Science Foundation(Grant No.2022M723174).

摘　　要：Quantum microwave photonics(QMWP)is an innovative approach that combines energy-time entangled biphoton sources as the optical carrier with time-correlated single-photon detection for highspeed radio frequency(RF)signal recovery.This groundbreaking method offers unique advantages,such as nonlocal RF signal encoding and robust resistance to dispersion-induced frequency fading.We explore the versatility of processing the quantum microwave photonic signal by utilizing coincidence window selection on the biphoton coincidence distribution.The demonstration includes finely tunable RF phase shifting,flexible multitap transversal filtering(with up to 14 taps),and photonically implemented RF mixing,leveraging the nonlocal RF mapping characteristic of QMWP.These accomplishments significantly enhance the capability of microwave photonic systems in processing ultraweak signals,opening up new possibilities for various applications.

关 键 词：microwave photonics quantum entanglement source window postselection 

分 类 号：O17[理学—数学]