What are the functions of each component of an optical fiber communication system?
The length of the fiber or cable is limited by the fiber drawing process and the construction conditions of the optical fiber cable, and the length of the fiber is limited (such as 1Km). Therefore, there may be multiple fiber connections in an optical fiber line. Thus, the connection between the optical fiber, optical fiber and optical coupling and coupling of optical fiber connectors, couplers and passive devices is essential.
The repeater consists of an optical detector, a light source and a decision regeneration circuit. It has two functions: one is to compensate for the attenuation of an optical signal when it is transmitted in an optical fiber; the other is the administration of a pulse whose waveform is distorted.
An optical fiber or fiber optic cable that forms the transmission path of light. Its function is to send the signal sent by the transmitter after the long distance transmission of optical fiber or optical cable, and then coupled to the receiver's optical detector to complete the task of transmitting information.
The light receiver is to realize optical optical / electrical conversion. The utility model is composed of an optical detector and an optical amplifier. Its function is to make optical fiber or optical signal cable to the light detector into electrical signals, then the level of the weak electrical signals amplified by the amplifying circuit enough, sent to the receiving end of the electrical terminal drain to.
The optical transmitter is to realize optical electrical / optical conversion. It consists of a light source, a driver, and a modulator. The function is to modulate the light emitted by the light source into the modulated light wave, and then transfer the modulated optical signal to the optical fiber or optical fiber cable. Electric terminals are conventional electronic communication devices.
