Generation, dynamics and bifurcation of high power soliton beams in cubic-quintic nonlocal nonlinear media

This article presents the generation and propagation dynamics of a high power Gaussian soliton beam through a highly nonlocal nonlinear media having cubic-quintic nonlinearity. Solitons are also generated with lesser explored Hermite super-Gaussian, Hermite cosh-Gaussian and Hermite cosh-super-Gaussian beam profiles. The governing nonlocal nonlinear Schrodinger equation yields matching solitons analytically using variational method as well as numerically using split-step Fourier method. Linear stability analysis identifies the parametric space for stability of the solitons against small perturbation. The variation of the system parameters leads to the bifurcation of the beam beyond a critical point. A parametric zone of bifurcation is identified. Some of the solitons are bistable too. The influence of quintic nonlinearity on generation, propagation and bifurcation is highlighted.

Automated summary

This article investigates the generation and propagation of high power Gaussian soliton beams through a highly nonlocal nonlinear media. Different beam profiles, including Hermite super-Gaussian, Hermite cosh-Gaussian, and Hermite cosh-super-Gaussian, are used to generate the solitons. The stability and bifurcation parameter space of the solitons are analyzed through both analytical and numerical methods. The study also highlights the influence of quintic nonlinearity on the generation, propagation, and bifurcation of the solitons.