Performance Analysis of DWDM Based Advanced Optical Network System for Different Optical Amplifiers and Channel Configurations

Abstract

The main aim of this thesis is to design and do performance analysis of 32, 64 and 128 channels DWDM system for three different amplifier configurations which are EDFA, Raman and OA amplifiers where each channel having 10 Gbps data rate multiplexed with frequency spacing of 100 GHz. Dispersion is an important factor to be considered while designing a DWDM system. Dispersion affects the penalties due to various types of fiber nonlinearities. Single mode fiber is preferred for long distance communication over Multimode fiber. In this proposed work Optisystem 16.0 commercial optical simulator is used to analyze the performance of 32, 64 and 128 channels DWDM system for three different amplifier configurations which are EDFA, Raman and OA amplifiers. The system performance is enhanced by using Dispersion compensation fiber to reimburse for the dispersion formed by single mode fiber. The system performance is imperfect due to the dispersion. In order to recompense this, we have used Dispersion Compensation Fiber (DCF). Between amplifier spans standard single-mode fiber is used, but at each amplifier position, dispersion compensating fiber having a negative chromatic dispersion is presented. By using this we have effectively designed a DWDM system with 32/64/128 channels each having 10 Gbps data rate multiplexed with frequency spacing of 100 GHz. It is apprehended that, in coming future, DWDM can appear as an auspicious technique to escalate the capacity and meet the bandwidth constraint. This work can further be stretched to more number of channels i.e. 256 channels or more with different frequency spacing