EDFA Optical Amplifier 1U Rack EDFA is the erbium-doped fiber amplification board. Its main function is to compensate the power of the signal optical in the transmission line, and it can amplify the optical signals of up to 48 channels with 100 GHZs interval) or 96 channels with 50 GHZ s interval) at C band at the same time. It has characters of flat gain, locked gain, low noise index, etc. It's an indispensable and important component for DWDM system, future high speed system and all-optical network long-distance transmission.