Design and Performance Evaluation of Bidirectional WDM-PON Using FTTH Architecture

Optical fiber cable has been presented as a solution to high bandwidth demand. A bidirectional WDM-PON (wavelength division multiplexed-passive optical network) with FTTx (fiber to the x, where x=home, hospital, business, school, mall, etc.) model has been presented with EDFA, WDM mux-demux splitter and APD photo detector for long haul transmission system and as a solution to last mile problem. The proposed model has been designed for 3 Gbps non-return to zero (NRZ) transmission system over 30 km long bidirectional optical fiber. The proposed model is applied on Coarse Wavelength Division Multiplexing (CWDM). Further, it has also been compared with the existing reported work on the basis of quality factor, BER and eye diagrams. The proposed model enhances the performance in terms of bit error rate and quality factor at the downstream and upstream end of the systems.