论文部分内容阅读
由于远红外波段大气传输损耗比近红外小,远红外自由空间光通信成为了研究热点。阐述了自由空间光通信的研究背景和现状,比较了近红外与远红外的大气传输损耗,分析了远红外自由空间光通信系统中的关键器件——量子级联激光器和碲镉汞探测器,并指出量子级联激光器和碲镉汞探测器将成为远红外自由空间光通信系统中光源和检测器的首选。
As the far-infrared band atmospheric transmission loss than the near infrared small, far infrared free space optical communication has become a research hotspot. The research background and status quo of free space optical communication are expounded. The atmospheric transmission losses of near infrared and far infrared are compared. The key components in the far infrared free space optical communication system - quantum cascade laser and mercury cadmium telluride detector are analyzed. It is pointed out that quantum cascade lasers and HgCdTe detectors will be the first choice of light source and detector in far-infrared free space optical communication system.