浅谈自由空间光通信技术及其应用

自由空间光通信技术（FSO）是一种宽带无线接入技术，利用激光束作为信道在大气空间中直接进行语音、数据、图像等信息的双向传送，是光通信技术和无线通信技术相结合的产物。文章首先简要介绍了自由空间光通信技术的起源和发展历史，分析了自由空间光通信技术的基本工作原理及它的优缺点，阐述了自由空间光通信技术的应用领域，并对自由空间光技术的发展现状做了讨论。

Discussion of Free-Space OpticalCommunication and Its Application

Free-space optical communication is a broad band wirless techniques, which uses laser bean as channel to transmit such information bidirectionally as sound, data and image. It is the production for integration of optical communication and wireless communication. The paper first describes the origin and development of free-space optical communication, and then analyzes the basic theory and advantages and flaws of the free-space optical communication. The paper also discusses the application domain of the free-space optical communication, including its present situation and future development.