Excitation of slow solitons in nonlinear tunneling of signals

The present work is concerned with the study of the effect of propagation of signals in waveguides filled with а medium of cublc nonlinearity at а frequency extending outside the band. А numerical modeling has shown that а powerful wave shifts the critical frequency of the waveguide. As а result, а tunneling of one or several slow solitons that do not coincide in frequency with the exciting signal is observed.