Optical fiber communication Is a kind of communication cable, light waves along the optical fiber transmission. The light source can be laser (also called a semiconductor laser diode), can also be a light emitting diode. Optical fiber communication transmission attenuation of small, large capacity, undisturbed, the secrecy good, the main can be used for large capacity defense communication and field communication, etc.


Optical fiber has three low loss window: 850 nm, 1310 nm, 1550 nm.