Free-Space Optical (FSO) Communication: Bridging the Gap in High-Speed Point-to-Point Wireless Networks

Free-Space Optical (FSO) communication has emerged as a promising solution for high-speed point-to-point wireless networks, offering unparalleled data rates, security, and scalability. However, challenges such as atmospheric turbulence, weather dependency, and alignment issues have hindered its widespread adoption. This paper explores the advancements in FSO technology, focusing on its role in bridging the gap in high-speed wireless communication. We discuss key enabling technologies, including adaptive optics, hybrid FSO-RF systems, and machine learning-based optimization, and evaluate their potential to overcome existing limitations. Furthermore, we highlight applications in 5G/6G networks, satellite communication, and last-mile connectivity, providing insights into the future of FSO as a cornerstone of next-generation wireless networks.