Abstract

Long-haul amplified systems will probably be self-filtering.¹ It is the spectral response of the erbium-doped fiber amplifier (EDFA) that primarily determines the optical band pass of the system, as well as the gain-peak wavelength. Since the final passband characteristics of the system are the result of the concatenation of a large number of amplifiers, small inaccuracies in the assumed gain response can lead to actual system values that differ significantly from the design goals. Thus there is a need to accurately characterize the EDFA for bandpass and peak characteristics.

© 1994 Optical Society of America