Title :
Analysis of gain difference between forward- and backward-pumped erbium-doped fiber amplifiers in the saturation regime
Author_Institution :
Dept. of Electr. Eng., Columbia Univ., New York, NY, USA
fDate :
7/1/1992 12:00:00 AM
Abstract :
In saturated erbium-doped fiber amplifiers (EDFAs), signal gain and power conversion efficiency are known to be greater in the backward pumping configuration. This study shows that the difference between pumping schemes is primarily an effect of amplified spontaneous emission. It is concluded that the highest conversion efficiency achievable in highly saturated EDFAs is predicted with fair accuracy by ASE noise-free models, but is approached most nearly with backward-pumped EDFAs.<>
Keywords :
erbium; fibre lasers; laser theory; optical pumping; optical saturation; superradiance; ASE noise-free models; Er doped fibre amplifiers; amplified spontaneous emission; backward-pumped; forward pumped; gain difference; highly saturated EDFAs; optical saturation; power conversion efficiency; saturation regime; signal gain; Erbium-doped fiber amplifier; Erbium-doped fiber lasers; High speed optical techniques; Optical amplifiers; Optical fiber amplifiers; Optical saturation; Power amplifiers; Quantum well lasers; Semiconductor optical amplifiers; Stimulated emission;
Journal_Title :
Photonics Technology Letters, IEEE
