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Erbium-Doped Fiber Amplifier (EDFA) is an optical amplifier used in the C-band and L-band, where the loss of telecom optical fibers becomes lowest in the entire optical telecommunication wavelength bands.

It has characters of flat gain, locked gain, low noise figure, etc. and it's an indispensable important component for China DWDM systems, future high-speed systems, and all-optical network long-distance transmission.

It has characters of flat gain, locked gain, low noise figure, etc. and it's a indispensable important component for DWDM systems, future high-speed systems, an all-optical network long-distance transmission.