Pa intanetifiber optic attenuatorndi chipangizo chosagwira ntchito chomwe chimagwiritsidwa ntchito kuchepetsa matalikidwe a chizindikiro chowala popanda kusintha kwambiri mawonekedwe a mafundewo.Izi nthawi zambiri zimakhala zofunikira mu Dense Wave Division Multiplexing (DWDM) ndi Erbium Doped Fiber Amplifier (EDFA) ntchito zomwe wolandira sangathe kuvomereza chizindikiro chopangidwa kuchokera ku magetsi apamwamba kwambiri.