Excitation controllability of bright-bright and bright-dark freak waves in partially nonlocal medium with external potentials

By the q-to-Q relationship between the 3D coupled nonautonomous nonlinear Schrodinger system and Manakov model, with the help of the Darboux transform technique, vector fundamental bright-bright and bright-dark freak wave solutions with two different forms of coupled components are found. Analyzing the physical quantities of solution formation hints that diffraction parameters and phase chirps strongly affect the properties of freak waves including amplitude, width, center and phase. By selecting suitable parameters, we can realize three different cases to find the excitation controllability of vector bright-bright and bright-dark freak waves, including shape delayed excitation, shape maximum excitation and shape initial excitation.