Fundamental Principle: Light as a Carrier Fiber optics transmits data by leveraging light pulses to represent binary information. Fiber-optic communication is a form of optical communication for transmitting information from one place to another by sending pulses of infrared or visible light through an optical fiber. Learn about their core and cladding structure, single‑mode vs multi‑mode fibers, and why optical communication powers our digital world. How Fiber Optic works? Every time you make a video call, stream a. The optical carrier is fundamental to modern high-speed data transmission, serving as the foundation for global communication. It's the backbone of the internet, telephone networks, and more, offering unmatched bandwidth and distance. For electrical engineers, it's a marvel of.