The Technology and System Aspects of Free-Space Optical Communication

Introduction: From Spectrum Scarcity to Optical Dominance Free-Space Optical Communication (FSOC) is emerging as a decisive alternative to traditional radio frequency (RF) communication, addressing one of the most pressing constraints in modern connectivity: spectrum saturation. As global demand for high-bandwidth data transmission accelerates—driven by satellite constellations, deep-space missions, autonomous systems, and military networks—RF systems are…