Initial overlap between solitons propagating at different carrier frequencies gives rise to a change in the frequencies of the solitons. The frequency change can have a severe effect on the transmission system because it will result in a time displacement of the solitons that is due to the fiber dispersion. The frequency change caused by initial overlap between two solitons at different carrier frequencies is calculated for a transmission system with periodic gain and loss.
© 1993 Optical Society of America
Thomas Aakjer, Jørn Hedegaard Povlsen, and Karsten Rottwitt, "Effects of initial overlap in a wavelength-division-multiplexed soliton transmission system," Opt. Lett. 18, 1908-1910 (1993)