Title :
Noise figure of erbium-doped fiber amplifiers in saturated operation
Author :
Movassaghi, M. ; Jackson, M.K. ; Smith, V.M. ; Hallam, W.J.
Author_Institution :
Dept. of Electr. & Comput. Eng., British Columbia Univ., Vancouver, BC, Canada
fDate :
5/1/1998 12:00:00 AM
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 98O-nm-pumped, copropagating erbium-doped fiber amplifiers (EDFA´s) operating in saturation
Keywords :
electric noise measurement; erbium; fibre lasers; laser noise; laser variables measurement; measurement errors; optical communication equipment; optical pumping; optical saturation; 980 nm; erbium-doped fiber amplifiers; identical detected power levels; nm-pumped copropagating erbium-doped fiber amplifiers; noise figure; noise measurements; optically measured noise figures; saturated operation; simple electrical noise figure measurement technique; Erbium-doped fiber amplifier; Measurement techniques; Noise figure; Noise measurement; Optical amplifiers; Optical noise; Optical saturation; Power amplifiers; Semiconductor optical amplifiers; Stimulated emission;
Journal_Title :
Lightwave Technology, Journal of
