Theory of Optical Bullets

—This paper,is a,theoretical study,of solitons in multidimensions, also known as optical bullets, that is governed by the nonlinear Schrodinger’s equation in 1 + 3 dimensions. The parameter dynamics,of such multidimensional solitons has been obtained. The study is extended to obtain the adiabatic evolution of soliton parameters in presence of the perturbation terms. Furthermore, the parameter dynamics for the vector multidimensional solitons and including the presence of the perturbation terms has been obtained.