Optimizing the Performance of Free Space Optical Channel at 1550 nm Wavelength

Abstract

Free space optical channel (FSO) provides better features than other available communication channels. Some of them are better wireless connectivity, easy establishment and high bandwidth. Despite of these advantages there are some parameters on which the system needs to be evaluated to analyse the performance. There are some external effects as well as system parameters that can affect the performance of free space optical system. Some of the effects that can degrade its performance are atmospheric attenuation, Absorption scattering and geometric attenuation. To enhance performance several parameters of the system needs to be selected in an effective manner. These parameters in FSO are Q factor, BER, distance of link, data rate and wavelength. In this paper a proposed FSO system is analysed with set of given parameters on two wavelengths i.e. 850 nm and 1550 nm. 

Keywords: BER, FSO, Q-FACTOR, Wavelength, Link