La. Melnikov et al., Dynamics of a misaligned astigmatic twisted Gaussian beam in a Kerr-nonlinear parabolic waveguide, PHYS REV E, 60(6), 1999, pp. 7490-7496
Using the Galerkin criterion in the basis of flexible generalized Gaussian
modes, the equations of motion are derived for the parameters of a misalign
ed astigmatic twisted Gaussian beam in an axially symmetric nonlinear mediu
m. Nontrivial features of the beam dynamics (e.g., phase locking, cycle gen
eration, nonlinear symmetry change) in a parabolic waveguide with Kerr nonl
inearity are revealed. [S1063-651X(99)00312-8].