Hebei Huiteng Lighting Cable Co., Ltd. introduces you: communication optical cables .
Communication Optical Fiber Cable. The communication optical cable is composed of a core and an outer sheath composed of several (core) optical fibers (generally from several cores to several thousand cores). Compared with the traditional symmetrical copper circuit and coaxial copper circuit, the optical fiber has a much larger transmission capacity; less attenuation; long transmission distance; small size; light weight; no electromagnetic interference; low cost, which is the current prospective communication transmission medium . It is widely used for signal transmission in various sectors such as telecommunications, electric power, and broadcasting, and will gradually become the main body of future communication networks. The main difference between the optical cable structure and the cable is that the optical cable must have a reinforcing member to withstand external mechanical loads to protect the optical fiber from various external mechanical forces.
Communication optical cable: Translated into Chinese is a communication optical fiber cable. Formal definition: a certain number of optical fibers form a cable core in a certain way, and the outer layer is covered with a sheath, and some are also covered with an outer sheath, which is a communication line used to implement optical signal transmission.
Chinese name: Communication Optical Cable
Foreign name: Communication Optical Fiber Cable
Another name: communication fiber optic cable
Applied Discipline: Information and Communication
Features: optical fiber, cable core, sheath, optical signal
The theory of optical fiber was proposed by British Chinese Dr. Gao Yan in 1966. It can be seen that the Chinese are also very intelligent and creative. Gao Yan pointed out: After improving the manufacturing process, people may make low-loss optical fibers suitable for communication. This prediction was confirmed in 1970 by a low-loss quartz fiber manufactured by Corning Glass Corporation. The company's fiber loss index is 20 dB / km.
In 1976, the Bell Institute in the United States built the first optical fiber communication experimental system in Atlanta, which used 144 optical fiber cables manufactured by Western Electric Company.
In 1980, commercial fiber-optic cables made of multimode fiber began to be used on inter-office trunks and a few long-distance lines in the city.
In 1983, commercial fiber-optic cables made of single-mode fiber were used in long-distance lines.
In 1988, a transatlantic submarine cable was successfully installed, connecting the United States, Britain and France.
In 1978, China developed its own communication optical cable. Single-mode fiber was used in 1984, and communication optical cables were gradually applied to long-distance lines.