Vibrational and stochastic resonance in a bistable vertical cavity laser with isotropic modulated optical feedback
The additional periodic or stochastic current modulation in a bistable vertical-cavity surface-emitting laser can greatly enhance the laser response to the impact of a modulated polarization-preserving optical feedback through the mechanism of vibrational or stochastic resonance. The both phenomena show up as a resonance-like dependence of the laser response on a selected polarization at the frequency of the modulated optical feedback as a function of the current modulation amplitude.