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作 者:Jin-Rong Wang Hong-Yu Zhang Zi-Lin Zhao Yao-Hui Zheng 王锦荣;张宏宇;赵子琳;郑耀辉(State Key Laboratory of Quantum Optics and Quantum Optics Devices,Institute of Opto-Electronics,Shanxi University,Taiyuan 030006,China;Department of Electronics and Information Technology,Shanxi University,Taiyuan 030006,China;Collaborative Innovation Center of Extreme Optics,Shanxi University,Taiyuan 030006,China)
机构地区:[1]State Key Laboratory of Quantum Optics and Quantum Optics Devices,Institute of Opto-Electronics,Shanxi University,Taiyuan 030006,China [2]Department of Electronics and Information Technology,Shanxi University,Taiyuan 030006,China [3]Collaborative Innovation Center of Extreme Optics,Shanxi University,Taiyuan 030006,China
出 处:《Chinese Physics B》2020年第12期88-92,共5页中国物理B(英文版)
基 金:Project supported by the National Natural Science Foundation of China(Grant Nos.62027821,11654002,11874250,and 11804207);the National Key R&D Program of China(Grant No.2016YFA0301401);the Key R&D Program of Shanxi,China(Grant No.201903D111001);the Program for Sanjin Scholar of Shanxi Province;the Program for Outstanding Innovative Teams of Higher Learning Institutions of Shanxi,China;the Fund for Shanxi“1331 Project”Key Subjects Construction,China。
摘 要:We design and construct a resonant photodetector(RPD)with a Q factor of 320.83 at the resonant frequency of38.5 MHz on the basis of a theoretical analysis.Compared with the existing RPD under the same conditions,the signalto-noise-ratio of the error signal is increased by 15 dB and the minimum operation power is reduced from-55 dBm to-70 dBm.By comparing the standard deviations of the stability curves,we confirm that the RPD has a dramatic improvement on ultralow power extraction.In virtue of the RPD,we have completed the demonstration of channel multiplexing quantum communication.
关 键 词:quantum optics PHOTODETECTOR Q factor
分 类 号:TN15[电子电信—物理电子学] TN911.8
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