Which type of cabling uses light signals to transmit data?

Fiber optic cabling uses light signals to transmit data, which is a fundamental characteristic that distinguishes it from other types of cabling. In fiber optic cables, data is converted into light pulses that travel through thin strands of glass or plastic, allowing for high-speed data transmission over long distances with minimal signal loss. This technology leverages the principles of total internal reflection, enabling it to achieve greater bandwidth and faster data transfer rates compared to copper, coaxial, or twisted pair cabling.

Copper cabling, on the other hand, transmits data through electrical signals, which can be subject to interference and attenuation over longer distances. Coaxial cabling also uses electrical signals but is designed for specific applications such as television and internet connections. Twisted pair cabling, commonly used in networking, also relies on electrical signals and is particularly susceptible to electromagnetic interference. Therefore, fiber optic cabling stands out for its use of light signals, making it the preferred choice for high-performance data transmission.