Available in fixed (FC, SC, LC housing) and variable (stepwise or continuously adjustable) formats, they offer accurate, low-loss attenuation from 1 dB to 30 dB. Accurate & Stable: Fixed attenuation values within ±0. 5 dB; variable versions offer smooth adjustment with. An optical attenuator, or fiber optic attenuator, is a device used to reduce the power level of an optical signal, either in free space or in an optical fiber. The optical fiber is located between the two microbend deformers, a groove for containing the optical fiber is formed in the shell, each microbend. FS fixed and variable fiber optic attenuators with leading attenuating fibers guarantee consistent and stable fiber attenuation (0~60dB) in WDM transmission. Attenuators from VIAVI offer a complete range of power-balancing options, from fixed to variable optical attenuators in field, lab, and manufacturing environments. Key requirements include minimal effect on the beam profile, low wavelength and polarization dependence, and sufficient power handling capability.
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