Know about Optical Fiber Amplifiers and Their Working

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Traditionally, for optical signal amplification, electronic repeaters were used. An Opto-electro-Opto device is a repeater. It converts the electronic signal back to an optical signal with a light wave transmitter, cleans up the electronic signal, and converts a weak optical signal into an electronic signal. The incoming optical signal is not converted to an electronic signal at all. Basically, you can denote it as an in-line laser. And since they do not convert each channel into electronic signals separately, an optical fiber amplifier and optical switch can simultaneously amplify dozens of optical channels. Doped with a rare-earth element such as erbium or praseodymium, an Optical fiber amplifier is a section of optical. By high power light into an excited state, the atoms of praseodymium or erbium can be pumped. But in the excited state, they are not constant. They stimulate the excited erbium atoms when the optical signals that are to be amplified pass through the fiber. Into low power level stable state, the erbium atoms will jump from the high power level excited state and in the form of emitted light photons at the same time, release their energy. Since it is an in-line amplifier, this is a very convenient form of optical amplifier for an optical fiber communication system. Thus, it removes the need to do the electrical-optical conversion process and optical-electrical.

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