Propagation and imaging of two orthogonally polarised optical beams in a nonlinear graded-index rod lens

The propagation and imaging of two orthogonally polarised Gaussian optical beams passing through a nonlinear graded-index rod lens are analysed using a variational approach, and it is concluded that there are two regimes of propagation, collapse and oscillation. The results show that the nonlinear interaction of two optical beams has great effects on the propagation and imaging characteristics of optical beams, and that one beam can control the propagation and imaging of the other beam