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Fundamental limitations in EDFA-based subcarrier-multiplexed AM-VSB CATV systems

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2 Author(s)
Habbab, I.M.I. ; AT&T Bell Lab., Holmdel, NJ ; Saleh, A.A.M.

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

Published in:

Lightwave Technology, Journal of  (Volume:11 ,  Issue: 1 )