Optical fiber communication technology stands out from optical communication, becomes one of the main pillars of modern communication, and plays an important role in modern telecommunication network.
As a new technology, the rapid development and wide application of optical fiber communication in recent years is rare in the history of communication, and it is also an important symbol of the world's new technological revolution and the main transmission tool of various information in the future information society.
Optical fiber communication is a kind of communication mode with light wave as information carrier and optical fiber as transmission medium. In principle, the basic material elements of optical fiber communication are optical fiber, light source and optical detector. In addition to classifying optical fibers according to manufacturing process, material composition and optical characteristics, optical fibers are often classified according to their applications, which can be divided into optical fibers for communication and optical fibers for sensing.
Transmission medium optical fiber can be divided into general purpose and special purpose, and functional device optical fiber refers to the optical fiber used to complete the functions of light wave amplification, shaping, frequency division, frequency doubling, modulation and optical oscillation, and often appears in the form of some functional device.
Optical fiber communication is a communication mode that uses light waves as the carrier and optical fiber as the transmission medium to transmit information from one place to another, which is called "wired" optical communication. Nowadays, with the advantages of wide transmission frequency band, high anti-interference and small signal attenuation, optical fiber is far superior to cable and microwave communication and has become the main transmission mode in the world communication.