We present the generation, stability analysis, and energy optimization of diffraction managed accessible breather solitons in highly nonlocal nonlinear media comprising an array of alternately positive and negative diffracting media. The system has been modeled using a nonlocal nonlinear Schrödinger equation and solved both analytically and numerically. The initial beam energy for the diffraction managed solitons has been determined and tabulated for a large range of both local and average diffraction. At comparatively higher diffraction values, the diffraction managed system requires significantly less energy for soliton formation than in a constant diffraction system, while it requires a little more for lower diffraction values. Naturally, an intermediate diffraction value offers the energy matching point for diffraction managed and constant diffraction systems, which in turn eases the use of both systems in a single network if necessary. The diffraction managed system requires less tuning of initial beam energy for soliton formation, and it is more prominent for negative average diffraction. The diffraction managed accessible solitons show a variety of bifurcations. They are robust against randomness in diffraction and/or nonlinearity.
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 the governing nonlocal nonlinear Schr\"{o}dinger 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.
This article presents a stability analysis of optical beam propagation through a medium possessing higher-order nonlocal nonlinearity. The zones corresponding to stable beam propagation have been identified in terms of material properties and beam regulating factors.
We present the generation and interaction dynamics of multiple accessible solitons in highly nonlocal cubic-quintic nonlinear media. Even numbers of solitons show periodic collisions. Initial separation and quintic nonlinearity marginally affect the collision dynamics.
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