Fiber optic attenuators can reduce the power level of an optical signal. It can control the intensity of the optical signal received by the optical receiving device within a certain range, effectively avoid the distortion of the optical receiver and equipment loss due to the super strong input optical power, and ensure the normal transmission of optical networks.

The attenuators can ensure stable and long-distance transmission, which are built with metal-ion doped optical fiber and provide stable attenuation levels to prevent optical overload at the receiver.