Simulations of Mode Division Multiplexed Free Space Optics with Photonics Traversal Filter using Multi-Mode Fiber

Abstract

The ever-increasing demands for ubiquitous connectivity for faster high-capacity communication systems has driven the quest for sixth-generation(6G) communication systems. It is expected to address the need for higher capacity, lower latency systems with higher Quality of Service (QoS) than fifth-generation 5G communication systems. Aerial Access Networks (AANs) have attracted attention and are considered as a potential solution for 6G systems. Heterogeneous networks with fiber and Free Space Optics (FSO). FSO front haul architecture is expected to meet the demands for the low-cost deployment of 6G networks. However, an increase in transmission capacity of FSO by mode division multiplexing to meet the needs for 6G communication has been least explored. Improvements in fiber multiplexing and demultiplexing techniques have enabled the possibilities for novel Mode Division Multiplexing (MDM) techniques to improve the capacity of fiber networks at a low cost. In this work, we have discussed the design of a novel photonics traversal filter to perform Mode Division Multiplexing in Multimode Fiber (MMF), thereby increasing the fiber’s capacity. The performance of Mode Division Multiplexed FSO links is further examined through simulations to identify its capabilities to meet the demands of 6G communication systems.