CSRayzer's DWDM Optical Amplifier is widely used in wavelength division multiplexing optical fiber communication systems, and can be integrated into optical amplifier cards and racks according to customer applications. We use the gain flat filter to obtain a flat output gain spectrum. At the same time, it provides multiple working modes such as automatic gain control, automatic power control and automatic current control. Customers can configure through the host computer. It adopts high-performance temperature control technology, so its output performance is stable.