光子计数无线光通信研究进展

Research Progress of Photon-Counting based on Optical Wireless Communication

随着光电器件的不断发展,出现了具备单光子灵敏度的光电检测器,使探测光子级别的信号成为了可能。研究使用单光子雪崩光电二极管作为接收端探测器,取代目前的PIN二极管和雪崩光电二极管,将大大提高接收端灵敏度,是实现远距离弱链路下高可靠通信的关键技术。介绍了光子计数无线光通信的研究背景与发展现状,分析了单光子探测器的基本工作原理,研究了光子计数无线光通信面临的主要问题。在此基础上,分析总结了光子计数无线通信系统中的关键技术。

With the continuous development of optoelectronic devices,photodetectors with single-photon sensitivity have emerged,making it possible to detect photon-level signals.A single-photon avalanche photodiode is used as the receiver detector,replacing the current PIN diode and avalanche photodiode,which would greatly improve the sensitivity of the receiver,and is the key technology for achieving high-reliability communication under long-distance weak links.The research background and development status of photon counting wireless optical communication are introduced,the basic working principle of single photon detector analyzed,and the main problems of photon counting wireless optical communication also explored.On this basis,the key technologies in the photon counting wireless communication system are discussed and summarized.