Abstract

The effect of cross-phase modulation (CPM) on the soliton switching in fiber nonlinear couplers is analyzed by studying the evolution of the soliton parameters at different values of the ratio σ between the CPM and self-phase modulation contributions. It is shown that the CPM effect may sufficiently modify the switching characteristics, and perfect switching is always achieved for σ → 1 when the model becomes exactly integrable. The main conclusions of the present analysis are confirmed by numerical simulations.

© 1993 Optical Society of America

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