W. Forysiak et al., STEPWISE DISPERSION PROFILING OF PERIODICALLY AMPLIFIED SOLITON SYSTEMS, Journal of lightwave technology, 12(8), 1994, pp. 1330-1337
Average soliton propagation in periodically amplified optical fiber sy
stems with stepwise varying dispersion is studied analytically and num
erically. A simple scheme for determining optimal profiles is describe
d and generalized design diagrams in terms of the average system dispe
rsion and net periodic loss are presented. n-fold optimal profiling is
shown to be as effective in reducing perturbations to the average sol
iton as n-fold reduction of the amplifier spacing. Hence, stable solit
on propagation for communications applications well beyond the usually
accepted limits is proposed.