FSO Basics
摘要
Free space optical (FSO) communication is a promising alternative in terms of meeting high data rates, providing a secure, and reliable communication. However, optical beam is prone to environmental conditions which affects FSO communication performance severely. This chapter deals with the basic concepts of FSO communication, including the transmission of data through free space using modulated optical beam. The components of FSO communication systems such as transmitters and receivers, different modulation schemes, the impact of atmospheric conditions on optical beam propagation, and the mitigation techniques for reducing the channel distortion effects are explored.