Noise figure of erbium-doped fiber amplifiers in saturated operation

TitleNoise figure of erbium-doped fiber amplifiers in saturated operation
Publication TypeJournal Article
Year of Publication1998
AuthorsMovassaghi, M., M. K. Jackson, V. M. Smith, and W. J. Hallam
JournalLightwave Technology, Journal of
Volume16
Pagination812 -817
Date Publishedmay.
ISSN0733-8724
Keywords980 nm, electric noise measurement, erbium, erbium-doped fiber amplifiers, fibre lasers, identical detected power levels, laser noise, laser variables measurement, measurement errors, nm-pumped copropagating erbium-doped fiber amplifiers, noise figure, noise measurements, optical communication equipment, optical pumping, optical saturation, optically measured noise figures, saturated operation, simple electrical noise figure measurement technique
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 plusmn;0.3 dB in measured noise figure. Using this technique we obtain an excellent agreement between electrically and optically measured noise figures for two 98O-nm-pumped, copropagating erbium-doped fiber amplifiers (EDFA's) operating in saturation

URLhttp://dx.doi.org/10.1109/50.669009
DOI10.1109/50.669009

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