Nonadiabatic effects caused by lumped amplifiers in fiber soliton transmission systems are reduced by the use of dispersion-decreasing fibers between amplifiers. As a practical application, we consider a stepwise dispersion-decreasing fiber with M steps and show that the increase in M is almost equivalent to the reduction of amplifier spacing, Za, to Za/M in reducing collision-induced jitters in soliton-based wavelength-division multiplexing systems.
© 1996 Optical Society of America
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