Optical fiber cable is a type of cable that uses light to transmit data. It consists of a core of glass or plastic surrounded by a protective coating. The core is made of a material that can transmit light, and the coating is designed to protect the core from damage. Optical fiber cables are used in a variety of applications, including telecommunications, data transmission, and medical imaging. They are also used in fiber-optic networks, which are used to transmit data over long distances.