Influence Measurement of Artificially Generated Combined Atmospheric Phenomena for Free-Space Optical Link

Abstract

The transition to modern wireless communications and 5G networks is constantly increasing the requirements for security, high bandwidth and high transmission speeds. Radio frequency (RF) communications, which are still popular, are becoming short on these requirements, while more and more attention is leaning toward free space optical links (FSO). Unfortunately, this communication is not yet advanced enough to work flawlessly either, and there are several limiting factors, wchich are mostly described in this thesis. The thesis is focused on modulation signals and their design in a simulation application, on the investigation of attenuation and simulation of atmospheric phenomena on a free space optical link in a designed simulation environment, on sensing humidity, pressure and temperature using designed and manufactured sensors and their covers, and subsequent statistical evaluation of all measured values and variations of modulation formats. The thesis is also focused on measurements and statistical evaluations of the polarization properties of the FSO.