摘要
自由空间光通信是以激光作为信息载体,是一种不需要任何有线信道作为传输媒介的通信方式。它结合了微波通信和光纤通信的优势,具有速率高、功耗低、机动性强等特点,在卫星通信、本地宽带接入和军事通信领域都具有极大的发展潜力。介绍了欧美发达国家在自由空间光通信方面的研究现状,并分析了它们的关键技术。指出了自由空间光通信的发展趋势。
Free-space laser communication with laser as information carrier is a communication method which does not need any wired channel. It combines the advantages of microwave communication and optical fiber communication. For its characteristics of high-speed, low power loss, good flexibility and so on, free-space laser communication has large potential in satellite communication, broadband access and martial communication. Its pivotal technique is analyzed. The current situation of Europe and US is introduced and the development trend is indicated.
出处
《光学技术》
EI
CAS
CSCD
北大核心
2005年第2期259-262,265,共5页
Optical Technique
关键词
自由空间激光通信
半导体激光器
卫星通信
free-space laser communication
laser diode
satellite communication
