Abstract
This paper presents the analysis of Erbium Doped Fiber Amplifier (EDFA) operated in the saturation regime for high output signal power. Results indicate that Er 3+ doped silica fibers with higher numerical aperture and erbium ion concentration can be used as efficient, high gain power amplifiers in the 1.55micrometers region. It is also observed that the optimum fiber length in high power EDFA does not change appreciably with increasing pump power or signal power.
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