Abstract

Erbium-doped fiber amplifiers are promising as a booster, a repeater and a preamplifier in the long haul transmission systems like submarine transmission lines because of their desirable features¹⁾. Radiation resistance characteristics are one of the important reliability issues for such long haul lines. Several radiation-induced loss measurements have been reported^2,3), however a dierct measurement of gain reduction by irradiation has not been seen so far. We report in this paper on the radiation sensitivity including the gain reduction for Er-doped fiber amplifiers.

© 1990 Optical Society of America