We calculate the self-frequency shift experienced by a soliton in a dispersion-managed
fiber that is due to the Raman effect, as well as the energy and frequency
shifts that result from a collision of such solitons with different wavelengths.
We find that dispersion management suppresses both types of frequency shift
but does not significantly affect the energy shift that is accumulated over
a large propagation distance. The latter shift may represent a potential problem
for wavelength-division-multiplexed systems with several gigabits per second
in a single channel.
© 1999 Optical Society of America
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