The application of photon-limit detection to communication in space
WANG Jian-Yu1,2,†,ZHANG Liang1,††,WEN Tian-Cheng1
(1 Shanghai Institute of Technical Physics,Chinese Academy of Sciences,Shanghai 200083,China)
(2 Hangzhou Institute for Advanced Study,University of Chinese Academy of Sciences,Hangzhou 310013,China)
Light was one of the earliest scientific research subjects of mankind. A photon is the smallest unit of light energy and has basic quantum characteristics. With the development of science and technology, human beings have been able to reach the limit of detecting a single photon. The conventional detection of light has been widely used in ground level optical fiber communication, but the detection of light at the single-photon limit has important application in free space quantum communication and ultralong distance deep space optical communication. This paper introduces the typical applications and core technologies of photon detection technology in quantum science experiments and photonic communication in space.
王建宇,张亮,文天成. 光极限探测技术在空间通信中的应用[J]. 物理, 2022, 51(2): 73-80.
WANG Jian-Yu,ZHANG Liang,WEN Tian-Cheng. The application of photon-limit detection to communication in space. Physics, 2022, 51(2): 73-80.