Measurement of Influence of Total Rainfall on Modulated Optical Beam in Laboratory FSO System

This article deals with an effect of a rainfall on modulated optical beams simulated in a laboratory environment in FSO systems. The aim of our study was to find out how much the rainfall can affect a communication. Different types of modulated light sources operating at different wavelengths in FSO links have been used. An integral part of the study is also a detailed analysis of the behavior of simulated atmospheric transmission conditions affecting over the entire length of the fibreless optical link in laboratory.