In order to meet the cost-effective needs of the market, FIBERWDM has developed an integrated DWDM EDFA fiber amplifier device，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 40/48 channels with 100 GHZ’s interval) or 80/96 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.