Which technology transmits data using light impulses along glass fibers?

The technology that transmits data using light impulses along glass fibers is fiber-optic cable. This technology utilizes thin strands of glass or plastic fibers to carry data as light signals. Because light can transmit information at extremely high speeds and over long distances without significant loss of quality, fiber-optic cables are highly effective for data transmission.

This method of data transmission also provides benefits such as immunity to electromagnetic interference, which is a common issue in other cable types. The ability to send large amounts of data quickly makes fiber-optic technology ideal for high-speed internet, telecommunications, and various data networking applications.

In contrast, coaxial cable uses electrical signals to transmit data and is typically used for cable television and internet connections, not light. Twisted pair cables also transmit electrical impulses and are more commonly used in telephone lines and local area networks. Wireless media, while able to transmit data without physical connections, does not use light impulses and instead relies on radio waves. Thus, fiber-optic cable is the only option that transmits data using light.