Link budget for high-speed short-distance wireless optical link

The paper discusses analyses of high-speed wireless optical link where various effects influence the detected optical power. For purpose of the analyses, Gaussian optical intensity distribution is considered. Further mathematical analysis leads to analytical expressions of attenuation of detected optical power under all common conditions (e.g. misalignment, tilts). All analyses are based on exact mathematical derivation and are modeled using a computer. In conclusion, results of simulations are described and individual influences of various effects are discussed and compared. Emphasis on exact mathematical analysis leads to thorough understanding of a system and allows us to design optical links more effectively with respect to the performance and also the price.