What is the primary use of fiber-optic cables in telecommunications?

The primary use of fiber-optic cables in telecommunications revolves around their ability to act as carriers for light rays. Fiber-optic cables are specifically designed to transmit data in the form of light, which allows for incredibly high-speed data transfer and a much larger bandwidth compared to traditional copper cables. This technology utilizes the principle of total internal reflection to transmit light over long distances with minimal loss of signal quality.

The light signals that travel through the optical fibers are capable of carrying vast amounts of information, making fiber optics a crucial component in modern telecommunications infrastructure. This application enables faster internet speeds, higher quality video streaming, and improved communication networks essential for various technologies and services.

In contrast, while fiber-optic cables can indeed connect local area networks and support other functionalities, their distinctive advantage lies in their capability to efficiently carry light signals, distinguishing them from other technologies used for communication purposes.