What's fiber optic cables ?
May 9, 2022
First,What's Fiber optic cables application?
Fiber optic cables Manufactured to meet optical, mechanical or environmental performance specifications, it is a communication cable assembly that uses one or more optical fibers in a sheath as transmission medium and can be used individually or in groups. Optical cable is mainly composed of optical fiber (as thin as hair glass wire) and plastic protection sleeve and plastic skin, optical cable without gold, silver, copper, aluminum and other metals, generally no recycling value. Optical cable is a kind of communication line with a certain number of optical fibers composed of cable core in a certain way, covered with a sheath, and some covered with an outer sheath, to realize the transmission of optical signals. That is, a cable made of optical fibers (optical transmission carriers) through a certain process. The basic structure of optical cable is generally composed of cable core, reinforcing steel wire, filler and sheath, and waterproof layer, buffer layer, insulating metal wire and other components according to the need.
Secondly,what's the Component of optical cable?
The optical cable is composed of cable core, reinforcing steel wire, filler and sheath, and waterproof layer, buffer layer, insulating metal wire and other components according to the need.
The cable is composed of three parts: strengthening core, cable core, sheath and outer sheath. Cable core structure has two types: single core type and multi-core type: single core type has two types: full type and bundle type; The multicore type has two types: strip type and unit type. There are two kinds of outer protective layers, metal armored and non-armored.
Thirdly,The history of optical cable?
In 1976, the Bell Research Institute in the United States built the first optical fiber communication experimental system in Atlanta, using the Western Electric company manufactured 144 optical fiber cable. In 1980, commercial fiber optic cables made of multimode fiber began to be used on intra-office trunk lines and a few long-distance lines. Commercial fiber optic cables made of single-mode fiber began to be used on long distance lines in 1983. In 1988, the first submarine cable was laid across the Atlantic, connecting the United States with Britain and France, and soon afterwards the first submarine cable across the Pacific. In 1978, China developed communication optical cable by itself, using multi-mode optical fiber, cable core structure is layer stranded. Field tests have been carried out in Shanghai, Beijing, Wuhan and other places. Soon after in the local telephone network as inter-office trunk line trial, after 1984, gradually used for long-distance lines, and began to use single-mode optical fiber. Communication optical cable has more than copper wire cable transmission capacity, relay, long distance, small volume, light weight, no electromagnetic interference, since 1976 has developed into the long trunk line, the city relay, offshore and transatlantic submarine communication, and local area network (LAN), private networks, such as cable transmission lines of the backbone, and began to subscriber loop wiring network in the city area development, To provide transmission lines for optical fiber - to - home, broadband integrated services digital network