1. Optical fiber: It is the abbreviation of optical fiber. It is drawn by a special process of pure quartz into a glass tube with a few mediums in the middle. Achieved light transmission tool. Its texture is brittle and easy to break, so an extra layer of protection is required.

2. Optical cable: It is mainly composed of optical fiber (glass filament as thin as hair), plastic protective sleeve and plastic outer skin. There is no metal such as gold, silver, copper and aluminum in the optical cable, and generally has no recycling value. Optical fiber cable is composed of a certain number of optical fibers according to a certain method, which is covered with a sheath, and some are also covered with an outer sheath. The protective structure of the outer layer can prevent the surrounding environment from damaging the optical fiber. It is a communication line used to realize optical signal transmission. That is, the optical cable is formed by the optical fiber (optical transmission carrier) through a certain process.