Abstract

We study the effect of distributed Raman amplification on strongly dispersion-managed soliton interactions and collisions in $N\times 20 \mathrm{Gbit}/\mathrm{s}$ wavelength-division-multiplexed long-haul transmissions. The measured reduction of noise accumulation with Raman amplification permits determination of the allowable reduction of signal power, when compared with the case of lumped erbium-doped fiber amplifiers. Hence we analytically estimate the reduction of intrachannel interactions and interchannel collisions induced by distributed Raman amplification and evaluate the corresponding decrease of timing jitter.

© 2002 Optical Society of America

Nonlinear and noise limitations in dispersion-managed soliton wavelength-division multiplexing transmissions with distributed Raman amplification

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