Abstract
Pavel Lushnikov
Dispersion-managed soliton in optical fiber
Abstract:
A dispersion-managed (DM) system, which is a system with periodical
variation of dispersion along an optical fiber, is one of the key components of current
development of ultrafast high-bit-rate optical communication lines. DM system is governed by
nonlinear Schroedinger equation with variable dispersion. Provided nonlinearity is small enough
this equation can be averaged over period of dispersion variation resulting in path-averaged
integro-differential equation. Here the DM soliton solution is obtained by iterating the
path-averaged
equation analytically and numerically. An efficient numerical algorithm for obtaining of DM soliton
shape
is developed. The envelope of soliton oscillating tails is found to decay exponentially in time
while
the oscillations are described by a quadratic law.
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