Abstract
For amplitude-shift-keyed (ASK) soliton systems [1] the error-free transmission distance is limited mainly by collision-induced timing jitter, which depends on the intensity patterns of the bit streams. In differential-phase-shift-keyed (DPSK) soliton systems, information is encoded using the phase differences between neigh-boring pulses. For DPSK systems collision-induced timing jitter is not a limiting factor because each channel has the same intensity pattern (a soliton in every bit slot). Instead, the error-free transmission distance is limited by phase jitter, in which power shifts caused by amplifier noise are converted into phase jitter by self-phase modulation (SPM).
© 2002 Optical Society of America
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