What is the primary transmission method used in fiber optic cables?

Fiber optic cables use light signals as the primary method of transmission. This is because fiber optics are designed to transmit information as pulses of light through a medium of glass or plastic fibers. The light signals represent data, which can include anything from internet connections to phone calls and video streams.

The use of light for transmission allows for much higher bandwidth compared to electrical signals used in traditional copper wiring. Light can travel long distances with minimal loss of signal strength, making fiber optic technology ideal for high-speed data communication. This capability enables faster internet speeds and improved clarity in telecommunications.

In contrast, options like electrical signals, radio frequency signals, and magnetic signals are associated with other transmission mediums and technologies, such as copper cables or wireless communication systems. Each of these technologies has its own advantages and limitations, but light signals precisely define the functionality of fiber optic cables.