Mechanically Variable fiber optic attenuator chishandiso chinoshandiswa kuderedza amplitude yechiratidzo chechiedza pasina kushandura zvakanyanya wave wave fomu pachayo.Izvi zvinowanzodiwa muDense Wave Division Multiplexing (DWDM) uye Erbium Doped Fiber Amplifier (EDFA) zvikumbiro apo mugamuchiri haakwanisi kugamuchira chiratidzo chinogadzirwa kubva kune-high-power light source.