We study four-wave mixing between pulses in two subchannels of a quasi-linear 40-Gbit/s subchannel-multiplexed system. For a pseudorandom bit string there are resonances in the mean of the ghost pulse energy and in the jitter of the energy in the marks as functions of the subchannel frequency spacing. However, away from these resonances the effect of four-wave mixing decreases as the subchannel spacing increases, permitting propagation over longer distances.
© 2002 Optical Society of America
John Zweck and Curtis R. Menyuk, "Analysis of four-wave mixing between pulses in high-data-rate quasi-linear subchannel-multiplexed systems," Opt. Lett. 27, 1235-1237 (2002)