The technology that uses light to transmit data fiber-optically is fiber optic technology. This technology employs fibers made of glass or plastic to conduct light signals over long distances, enabling high-speed data communication. Fiber optics offers advantages such as increased bandwidth, reduced signal degradation, and immunity to electromagnetic interference compared to traditional copper wiring. Applications of fiber optic technology include telecommunications, internet infrastructure, and advanced networking solutions, making it a critical component of modern communication systems.