PERFORMANCE ENHANCEMENT OF WDM-XGPON SYSTEM FOR BI-DIRECTIONAL TRANSMISSION

Abstract

Optic fibre is crucial to the network’s access section. One of the most important technologies for the next generation of optical fibre communication systems that can increase reliability and data throughput is the 10-Gigabit Passive Optical Network (GPON), also referred to as (XGPON). A model based on Wavelength Division Mul tiplexing 10-Gigabit Passive Optical Network system (WDM-XGPON) is proposed in this paper. It has an 80 km access network connection to a central office optical line terminal (OLT) for multi-channel optical fibre transfers at a 10 Gbps data rate. In a 32 channel Wavelength Division Multiplexing passive optical network, various modulation formats will be compared in this paper along with their performance. The system includes a channel with a 10 Gbps transmission rate. The performance of several modulation formats, including Non return to zero (NRZ), Return to Zero (RZ), Carrier Suppressed RZ (CSRZ), Duobinary (DB), is compared.The suggested system is assessed using the Bit Error Rate (BER), Quality factor (Q-factor),and Eye Diagram using the simulation software Optisystem. As can be observed, DB Modula tion format has a longer reach of 120 kilometres, while CSRZ forms is the second-best option, offering a maximum transmission length with high Q-factor. Keywords: Bit Error Ratio, Eye diagram, Q-factor, XGPON, Modulatio