Cable (optical fiber cable) is mainly composed of optical fiber (hair thin glass fiber) and a plastic protective sleeve and plastic casing, no gold, silver, copper and aluminum and other metal cable, generally no recycling value. Optical fiber cable is a number in a certain way to form the cable core sheath, outsourcing, and some also coated layer of protection, with a line of communication to achieve the transmission of optical signals. Namely: the optical fiber (optical transmission carrier) after a certain process and the formation of the cable. Basic cable structure is generally a few parts composed of a cable core, reinforcing steel, filler and sheath, according to the need and the waterproof layer, buffer layer, insulating metal wire and other components