Title :
Fundamental limitations in EDFA-based subcarrier-multiplexed AM-VSB CATV systems
Author :
Habbab, I.M.I. ; Saleh, A.A.M.
Author_Institution :
AT&T Bell Lab., Holmdel, NJ
fDate :
1/1/1993 12:00:00 AM
Abstract :
The authors present and discuss fundamental limitations for erbium-doped fiber amplifier (EDFA)-based subcarrier-multiplexed AM-VSB CATV distribution systems. The impairments they consider are shot noise, amplifier spontaneous emission noise, and laser clipping-induced nonlinear distortion. Treating the amplifier input signal power and pump power as resources, they obtain limits on the number of receivers to which one can deliver, say, 60 (or 80) channels at a carrier-to-noise ratio (CNR) of 55 dB (or 48 dB). A simple approach that can be used to recalculate the results presented here for different system and amplifier fiber parameters is presented
Keywords :
amplitude modulation; cable television; erbium; fibre lasers; optical communication equipment; optical links; optical modulation; subcarrier multiplexing; AM-VSB; CATV systems; EDFA-based; Er-doped fibre amplifiers; amplifier fiber parameters; amplifier input signal power; amplifier spontaneous emission noise; carrier-to-noise ratio; distribution systems; erbium-doped fiber amplifier; laser clipping-induced nonlinear distortion; pump power; shot noise; subcarrier-multiplexed; vestigial sideband; Distributed amplifiers; Erbium-doped fiber amplifier; Laser noise; Noise reduction; Nonlinear distortion; Optical amplifiers; Optical fiber amplifiers; Optical receivers; Power amplifiers; Pump lasers;
Journal_Title :
Lightwave Technology, Journal of
