Effect of Beam Divergence on WDM-FSO Transmission System

Abstract

This work is focused to carry out the investigation of wavelength division multiplexing (WDM) approach on free space optical (FSO) transmission systems. In this work, 8 independent channels having capacity of 1.56 Gbps each are transmitted over FSO link having a span of 15km by considering clear weather conditions. Furthermore, the performance of proposed FSO-WDM system is also evaluated on the effect of varying the beam divergence and results are reported in terms of SNR, BER and eye diagrams.