An analytical description of the propagation of quasi-linear optical pulses in strongly dispersion-managed systems is presented. The effect of nonlinearity on quasi-linear pulse transmission is studied by asymptotic analysis of a nonlocal equation that describes the average dynamics of a dispersion-managed system. The spectral intensity is found to be an invariant of propagation in a lossless model even in the presence of nonlinearity, whereas in a system with loss and periodic amplification the spectral characteristics of evolution depend on the relative position of the amplifier in the dispersion map. The analytical results obtained here agree with direct numerical simulations and recent experimental observations.
|Journal of the Optical Society of America B: Optical Physics
|出版済み - 2002 3月