Fibre is a tool for signal transmission is extremely convenient, with cable one slim light column, which can replace thousands of or more physical lines of communication, do large and long distance communication. Especially in recent years, with the fiber optic cable and the surrounding products have been listed in mass production line loss problem has been solved, are more cost is no longer out of reach, so by many Ann is used in great quantities in the control engineering.
The development of optical fiber technology
The basic architecture of optical fiber communication is just a simple "light emission" and "light receiving transformation" unit, so when we are using optical fiber communication and transmission, the sender must be first converted into optical signals, using optical fiber to transmit to the receiver.
Finally, ? light signals