• The Model 5901 erbium-doped fiber amplifier is a wall-plug EDFA containing an optical gain block and control electronics. Grating stabilization is used in the laser pumps, and erbium-doped fiber has gain flatness of ±0.5 dB in the 1535- to 1565-nm range for most input conditions. A noise figure of 4.5 dB is standard.

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