With the development of information technology, signals such as data, image and voice, which are closely related to people's lives, need transporting. In early time, we transported signals with electric cables. However, it is difficult to ensure the transmission effect because of the large loss. Now we all choose the optical fiber communication to improve the transmission quality. The so-called optical fiber communication is a method to achieve communication by using light waves to carry information. It is favored more and more for its large capacity, long transmission distance.
The paper briefly introduces the concepts, definition and classification of the optical fiber communication. It also gives a simple design and implementation
Keywords: digital communication, optical fiber digital communication, optical fiber.