Traditionally, (acrylic) comprises the core (96% of the cross section in a fiber 1mm in diameter), and fluorinated polymers are the material. Since the late 1990s much higher performance graded-index (GI-POF) fiber based on amorphous fluoropolymer (poly(perfluoro-butenylvinyl ether), CYTOP ) has begun to appear in the marketplace. Whereas glass fibers are only manufactured by drawing, polymer optical fibers can also be manufactured by extruding. A fiber-optic cable, also known as an optical-fiber cable, is an assembly similar to an but containing one or more that are used to carry light. The optical fiber elements are typically individually coated with plastic layers and contained in a protective tube suitable for the environment where the cable is used. Different types of cable are used for in different applications, for exa.
