![]() The traditional distance problem as in any long distance telecommunication system such as a trans-Atlantic link is what the optical fiber amplifiers solve basically. The signals become weaker in power as optical signals travel through the fiber. Until it becomes too weak to be detected reliably the weaker the signal becomes, the farther you go. By using optical amplifier along the way Fiber optic communication systems solve this problem. To boost the strength of the signal at a point where the signal has become weak, an amplifier or repeater is inserted into the system and so through another length of fiber cable, it can be transmitted. To keep the signal strong along the whole fiber link many repeaters or amplifiers can be placed in sequence. Understanding the optical fiber amplifiers in depth is essential. Doped with a rare-earth element such as praseodymium or erbium Optical fiber amplifier is a section of optical fiber. Since it is an in-line optical amplifier China this is a very convenient form of the amplifier for an optical fiber communication system, thus removes the need to do the electrical-optical and optical-electrical conversion process. For the operation of fiber amplifiers, the corresponding optical signal and the pump laser wavelengths are key parameters. On the composition of the glass in the fiber and also on the type of rare-earth element doped in the fiber these wavelengths depend. Its gain is another important term in understanding fiber amplifiers from optical amplifier manufacturer. The amplification per unit length of fiber is measured by the gain. Gain varies with wavelength for all materials depend on both the operating conditions and materials. The gain saturation effect comes into action for high input powers. less and less output power is produced by an increment of input power, which necessarily means the amplifier needs to generate more output and has run out of the power.
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