Fibre Optic attenuators feature a proprietary type of medal-ion doped fibre, which reduces the light signal as it passes through providing the highest performance in the 1310, C and L banks. These quality attenuators are capable of withstanding over 1W of high power light exposure for extended periods of time. These attenuators provide excellent optical characteristics including Low Polarization Dependent Loss (PDL) and a stable and independent wavelength distribution.