20Gbps MDM-based Optical Multimode System for Short-haul Communication

Mode division multiplexing or MDM is a significant technology that is used for increasing transmission capacity of multimode communication systems. MDM allows the transmission of many channels over multimode link by using the multiplexing of different modes with a single wavelength. This reduces the required bandwidth for optical communication systems. Multimode fiber (MMF) and Few mode Fiber (FMF) are the possible optical fibers used to carry the different modes from one place to another place. The current study aims at designing a high-speed multimode transmission system by using MDM of two modes - Laguarre Gaussian (LG) 00 and 01 modes - for transporting two independent channels each with 10 Gbps data over 6800 multimode link. Furthermore, comparative analyses of performance of few mode fiber (FMF) and multimode fiber (MMF) are carried out in terms of Bit error rate (BER), Quality factor and wye diagrams. Moreover, modal decomposition of LG 00 and 01 modes into linearly polarized (LP) modes is also reported.