Design a Free Space Optical Link for 32x40 Gbps (1 Tbps) System with Dispersion Compensation Mechanism over 5 Km

With the increasing demand of internet, communication engineers move forward to new communication system known as optical communication. With the advent of optical communication we are able to design a high speed internet with a minimum speed of 10Gbps/sec and the maximum speed up to 160Gbps/sec. (1, 2) The challenge is to handle the issue of chromatic dispersion and attenuation. Another important issue to design a WDM system is cabling. To overcome these cable problems we can move forward to free space optics (FSO) which gives high data rates and also low costs and having easy maintenance which gives as an end user solution. The goal of this paper to design a free space optical link for 32×40Gbps (1Tbps) system with dispersion compensation mechanism over 5 km. The analysis is done on the basis of eye pattern obtained after simulation on Optisystem software. In this paper we design a free space link with 32 channels and also controlled chromatic dispersion by introducing pre compensation and fiber Bragg grating.