Design Simulation of Raman Amplification Hybrid XGPON System with RZ and NRZ Data Format

Abstract

Next-generation Passive Optical Networks (PONs), which areconsidered one of the most encouraging optical access networks, hasremarkably developed in the past few years and intended to greatly goforward in the nigh future. By this development the power requirements ofNGPON will growth and make it no longer coveted. This paper presentsHybrid (WDM/ TDM) XGPON architecture, where in this optical fibercommunication system a bidirectional optical fiber has been applied withdownstream and upstream NRZ and RZ (0.6 and 0.8 duty cycle)DataFormat transmission. Distributed Raman amplification is employed forupstream signal for improving the loss budget of XGPON system. Fiberattenuation, splice losses, and back-reflections as in realistic fiber planthave been considered for this XGPON system. These impairments effectson 1270 nm upstream Raman amplified signal XGPON system have beeninvestigated numerically.