Mode Division Multiplexing-Based Passive Optical Networks for High-Capacity Data Rate via Radio Over Fiber Technology

Passive Optical Networks (PON) is a recent technological development that has emerged in recent years. A cost-effective and efficient approach for deploying large bandwidth systems that can support high-speed connectivity is the implementation of the Radio-over-Fiber (RoF) system, which serves as a credible architecture for both wired and wireless access. The bandwidth limitation of access networks, coupled with the growing demand for high-spectrum bandwidth and restriction access technologies, has led to the implementation of fiber to the home (FTTH) as a means of providing high-speed services. Mode Division Multiplexing (MDM) is investigated during the transmission of high data rates for increasing capacity in transmission systems and optical access networks. The aim of the manuscript is to overcome the limits of traditional PONs by using MDM-based PONs with RoF technology to obtain a high-capacity data rate. In this work, performance analyses were performed by considering different parameters like eye diagrams, Q-factor, BER, and the efficiency of the noise removal. From the analysis result good maximum Q-factor is 30.182 at 2.5 Gbps and 5 km, which shows that the system performance is high, and the Good BER value 2.03832e-200, at 5 km, 2.5 Gbps and the choice between 8-DPSK and 16QAM depends on the specific requirements of the communication system. 16QAM is preferred due to it has high spectral efficiency. At a data rate of 2.5 Gbps and a distance of 20 km, the Q-factor for MDM with a Bessel filter is 13.3265, and without a Bessel filter is 5.718.