Do you use copper for fiber optic cables?

　　Copper is not used in optical cables. Optical cables are a type of communication cable used to tranSMit optical signals. They are mainly composed of optical fibers (also known as optical fibers), plastic protective sleeves, and plastic sheaths. Optical fibers are the core part of optical cables, made of high-purity quartz glass or plastic, and have the function of transmitting optical signals. The plastic protective sleeves and plastic sheaths play a role in protecting optical fibers from external environmental damage.

　　Unlike optical cables, copper cables (e.g. twisted pair, coaxial cable, etc.) use copper wires to transmit electrical signals. Copper has good electrical conductivity, so it is widely used in telecommunications networks. However, with the development of communication technology, optical cables have gradually replaced some copper cables due to their advantages such as large transmission capacity, long relay distance, small size, light weight, and no electromagnetic interference.

　　Therefore, it can be clearly said that the material of optical cable does not include copper, which relies entirely on the transmission of optical signals, rather than electrical signals. This feature makes optical cables have a wide range of application prospects in long-distance communication, high-speed Internet access, data center connection and other fields.