Asymptotic linear dispersion of optical pulses in the presence of fiber nonlinearity and loss.
The asymptotic dispersive broadening of soliton pulses in optical fibers in the presence of weak losses has recently, following extensive numerical calculations, been shown to be less than the linear dispersion. We derive an explicit analytical approximation for the asymptotic dispersion that is in good agreement with numerical results. We also consider the case of strongly damped frequency-chirped pulses, where again the action of the nonlinearity is found to affect the long-term asymptotic properties of the pulses.
Anderson
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Lisak
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