The Fundamentals of Fiber Optic Networking provides a comprehensive exploration of the technologies, principles, and practices that define modern fiber optic communication systems. Covering everything from the basic physics of light transmission to the most advanced applications in 5G, data centers, and quantum communications, this book offers readers a detailed understanding of fiber infrastructure design, deployment, maintenance, and emerging innovations. It serves as an essential resource for students, professionals, and anyone interested in the critical role fiber optics plays in shaping global connectivity and the digital future.