SAE-EDF50-LCD-NMS is multi-channel ERBIUM-DOPED FIBER AMPLIFIER (EDFA) in Low-noise , high flatness & high stable output. The kernel component of the product is high availability pump laser and high-performance gain flattening filters. The product has high stable output, high gain flatness and high reliability by using unique APC (automatic power control) and ATC (automatic temperature control). The system’s flatness and noise of  SAE-EDF50-LCD-NMS can achieve the best optimization by the gain flattening filters of professional design. The product selection of imported high-performance baits fiber, the international famous brand low-noise pump laser, and built-in sound embedded automatic monitoring and control system, ensure the machine excellent performance indicators. The system is convenient to regulation and display, reliable,intelligent by using high stable and high precision MPU.