Numerical Analysis of Nonlinear Dynamics Based on Spin-VCSELs with Optical Feedback

In this paper, the nonlinear dynamics of a novel model based on optically pumped spin-polarized vertical-cavity surface-emitting lasers (spin-VCSELs) with optical feedback is investigated numerically. Due to being external disturbance component, complex dynamical behaviors can be enhanced and regions different in size extended appropriate parameters spin-VCSELs. According equations modified spin-flip (SFM), comparison bifurcation diagrams first presented for clear presentation routes chaos. Meanwhile, numerous color are illustrated demonstrate rich regimes intuitively, crucial effects strength, delay, linewidth enhancement factor, relaxation rate region evolvement proposed revealed investigate dependence internal when scheme introduced. These play remarkable role enhancing mechanism dynamic oscillations. Furthermore, utilizing combination time series, power spectra, phase portraits, various observed diagram simulated Correspondingly, powerful measure 0–1 test employed distinguish between chaos non-chaos.