Nonlinear compression of chirped solitary waves with and without phase modulation

Novel exact solutions suggest the possibility of clean and efficient nonlinear compression of chirped solitary waves with appropriate tailoring of the gain or dispersion as a function of distance and with optional phase modulation. A numerical simulation with 20-fold compression is reported. Numerical tests reveal the robustness of the technique to perturbations of the initial condition or to the tailored gain/dispersion.