Abstract

With increasing channel counts and broader bandwidths being demanded from erbium-doped fibre amplifiers (EDFAs) in WDM systems, stringent requirements are being placed on the amplifier gain flatness over the full erbium bandwidth. To achieve this, strict control over the passive spectral losses (e.g. gain flattening filter) and Er-doped fibre are required.

© 1999 Optical Society of America

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