On control of chaos and synchronization in the vibronic laser.

It is shown theoretically that the method of time delayed incoherent optical feedback ensures control of chaotic dynamics in the vibronic alexandrite laser. The numerical solutions of the laser equations including the optical delayed feedback term are presented and the conditions for stabilization of the laser output are discussed. The possibility of synchronization of two chaotic vibronic lasers is reported when one of them is driven by the output of the other, thus giving the basis for secure communication.