The role of optical fiber and cable in communication engineering

Optical fiber and cable communication is the main transmission method of modern communication transmission systems. The development history of optical fiber and cable has only been ten or twenty years, and it has undergone three upgrades: short-wavelength multi-mode optical fiber cable, long-wavelength multi-mode optical fiber cable and long-wavelength single-mode optical fiber cable . The use of optical fiber and cable communication is a major change in the communication transmission system. At present, China‘s optical fiber and cable communication has entered the practical stage. In addition, many countries have now announced that they will no longer build cable communication lines and are committed to developing optical fiber and cable communications.

　　

Overview of fiber optic cable communication: Use fiber optic cables to transmit information-carrying light waves to achieve the purpose of communication transmission. To make light waves a carrier of information, they must be modulated, and the information is detected from the light waves at the receiving end. As a technology, optical fiber and cable communication transmission has a development history of only 30 to 40 years, but it has completely changed the face of world communication transmission, and the future development is even more immeasurable.