A method for the all-optical manipulation of optical pulses in a dispersive non-linear optical waveguide, wherein an interaction is induced between the optical pulses, wherein - a signal pulse having a frequency in the abnormal dispersion range of the waveguide and a control pulse having a different frequency with respect to the frequency of the signal pulse and with a time delay are coupled into one another in the dispersive non-linear optical waveguide having a dispersion profile with at least one zero point; - the pulse width and pulse amplitude of the signal pulse are selected such that soliton propagation is ensured; - the frequencies of the signal pulse and control pulse are set such that the group speeds of the pulses are the same or virtually the same; and - the signal pulse and the control pulse are caused to interact, as a result of which a change in the refractive index is induced, which implements a pulse and energy transmission using a cross-phase modulation and, consequently, a reciprocal frequency shift in the pulses in such a manner that the frequency shift for the signal pulse is set and evaluated using the pulse properties of the control pulse, and the interaction between the signal and the control pulse can be set so that a frequency shift of the control pulse takes place at lower frequencies and a frequency shift of the signal pulse takes place at higher frequencies, or respectively a frequency shift of the signal pulse takes place at lower frequencies and a frequency shift of the control pulse takes place at higher frequencies, wherein the signal pulse is changed in that the frequency shift in the pulses is exploited with the aid of frequency-dependent material parameters. - a signal pulse having a frequency in the abnormal dispersion range of the waveguide and a control pulse having a different frequency with respect to the frequency of the signal pulse and with a time delay are coupled into one another in the dispersive non-linear optical waveguide having a dispersion profile with at least one zero point; - the pulse width and pulse amplitude of the signal pulse are selected such that soliton propagation is ensured; - the frequencies of the signal pulse and control pulse are set such that the group speeds of the pulses are the same or virtually the same; and - the signal pulse and the control pulse are caused to interact, as a result of which a change in the refractive index is induced, which implements a pulse and energy transmission using a cross-phase modulation and, consequently, a reciprocal frequency shift in the pulses in such a manner that the frequency shift for the signal pulse is set and evaluated using the pulse properties of the control pulse, and the interaction between the signal and the control pulse can be set so that a frequency shift of the control pulse takes place at lower frequencies and a frequency shift of the signal pulse takes place at higher frequencies, or respectively a frequency shift of the signal pulse takes place at lower frequencies and a frequency shift of the control pulse takes place at higher frequencies, wherein the signal pulse is changed in that the frequency shift in the pulses is exploited with the aid of frequency-dependent material parameters.