The effect of the third-order filter term on soliton interactions in optical fibers with guiding filters is theoretically analyzed. We find that this term causes a significant difference to the interaction of solitons through filters among the regimes of without sliding, with up- and down-sliding frequencies of filters. It is shown that the interaction between solitons can be more effectively suppressed by up-sliding filters than that by down-sliding filters in the presence of the third-order filter term. Moreover, the third-order filter term is found to play a positive role in suppressing soliton interactions in the case of non-sliding.
© 2009 Chinese Optics Letters
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.5530) Fiber optics and optical communications : Pulse propagation and temporal solitons
(070.6110) Fourier optics and signal processing : Spatial filtering
(120.2440) Instrumentation, measurement, and metrology : Filters
Yingji He, Li Luo, Weiling Zhu, and Hezhou Wang, "Effect of the third-order filter term on soliton interactions in soliton transmission systems with filters," Chin. Opt. Lett. 7, 986-989 (2009)