The reduction of the soliton interaction by use of optical sliding-frequency second-order Butterworth filters is studied numerically. It is found that the second-order Butterworth filters can reduce the soliton interaction more effectively than Fabry–Perot filters or third-order Butterworth filters because the second-order Butterworth filter induces larger frequency chirping on the soliton, compressing it as it propagates in the fiber after the filter.
© 1996 Optical Society of America
Jeng-Cherng Dung, Sien Chi, and Senfar Wen, "Reduction of soliton interactions by sliding-frequency second-order Butterworth filters," Opt. Lett. 21, 339-341 (1996)