In this paper, the influence of the rotating polarization angle of optical feedback (OF) on the chaotic dynamic behavior of vertical-cavity surface-emitting lasers (VCSELs) is studied numerically. Parallel-polarization optical feedback (PPOF) is considered in this investigation. A numerical model using Simulink is implemented for the polarization resolved… (More)
We propose and demonstrate improvement of optical signal-to-noise ratio of a high-power pump by saturated stimulated Brillouin amplification of a backward seed in a fiber. A 27-dB improvement was obtained for a 1-W pump.