... /1490nm /1310nm out FTTH,FTTB High-Power Fiber Amplifier,YEDFA FWAP-1550HA Series,PON+CATV EDFA Combiner ... combiner is a representative one in the optical amplifier. As the EDFA’s wavelength is 1550nm, ... has been relatively mature, so widely used. Erbium-doped fiber is the core components of the EDFA, it ... Combiner out , Each output port for optical amplifier has built-in well-performed CWDM, and 1550nm ...