What is the difference between opticalcable and optical fiber？

1, the difference between the composition structure and use:
(1) In popular terms, each core is called an optical fiber, and the multi-core optical fiber is combined into a cable.
(2) The optical cable is mainly composed of optical fiber (glass filament as thin as hair) and plastic protective sleeve and a plastic sheath. Optical cable is a certain number of optical fibers in a certain way to form the cable core, the outer sheath, and some are also covered with an outer sheath, to achieve optical signal transmission of a communication line. That is a cable formed by an optical fiber (optical transmission carrier) after a certain process.
(3) The basic structure of the optical cable is generally composed of several parts, such as cable core, reinforced steel wire, filler, and sheath, and according to needs, there are waterproof layers, buffer layers, insulating metal wires, and other components.