Attenuators are a key element in the design of fiber optic transmission systems. Attenuators are used to match the optical power level to the dynamic range of receivers, adjust the input and output levels in EDFAs, equalize the power between different DWDM channels and test the general performance of systems under varying optical power conditions. Brimrose offers a programmable fiber optic attenuation solution. Brimrose's attenuation product offerings are designed to fulfill all the attenuation requirements necessary in today's fiber-optic systems.