Bistable polarization switching in mutually coupled vertical-cavity surface-emitting lasers

We theoretically investigate the polarization-resolved dynamics of
two vertical-cavity surface-emitting semiconductor lasers that are mutually
coupled through coherent optical injection. We find a sequence of
bistable polarization switchings that can be induced by either
changing the coupling strength or the optical propagation phase.
The successive polarization switchings are correlated to the creation
of new compound-cavity modes when these parameters are
continuously varied.

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