Definition: Optical amplifier is a device used in an optical communication system to directly amplify (boost) optical data signal without changing it into its electrical form. By making use of Optical amplifiers in optical fiber communication, the optical integrity of the whole system is retained. Need of Optical amplifier During signal transmission, it is necessary to employ amplifiers within the network in order to have a distortionless data signal. When we talk about an optical … [Read more...] about Optical Amplifier