Abstract

We have developed a simple electrical noise figure measurement technique for the characterization of optical amplifiers. By subtracting the results of noise measurements at identical detected power levels made with and without the amplifier present, we are able to achieve an accuracy of 0.3 dB in measured noise figure. Using this technique we obtain an excellent agreement between electrically and optically measured noise figures for two 980-nm-pumped, copropagating erbium-doped fiber amplifiers (EDFA's) operating in saturation.

[IEEE ]

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