Title :
Propagation of signal and noise in concatenated erbium-doped fiber optical amplifiers
Author :
Giles, C.R. ; Desurvire, Emmanuel
Author_Institution :
AT&T Bell Labs., Holmdel, NJ, USA
fDate :
2/1/1991 12:00:00 AM
Abstract :
Signal propagation and noise accumulation in lightwave systems using saturated optical amplifiers as repeaters are analyzed. Numerical simulations of amplified spontaneous emission in concatenated erbium-doped fiber amplifiers indicate that a reach beyond 10000 km is possible with a 1.55-μm system in the absence of fiber nonlinearities. Distributed optical amplifiers are shown to have low noise, but require higher pump power than lumped amplifiers. Three operating modes of an amplifier lightwave system are identified and their relative signal power efficiency and noise performance are described
Keywords :
erbium; fibre lasers; laser theory; optical communication equipment; optical saturation; random noise; superradiance; 1.55 micron; 10000 km; Er:fibre amplifiers; amplified spontaneous emission; amplifier lightwave system; lightwave systems; low noise; noise accumulation; noise performance; operating modes; pump power; repeaters; saturated optical amplifiers; signal power efficiency; signal propagation; Concatenated codes; Distributed amplifiers; High power amplifiers; Optical amplifiers; Optical noise; Optical propagation; Optical pumping; Optical saturation; Semiconductor optical amplifiers; Stimulated emission;
Journal_Title :
Lightwave Technology, Journal of
