COUPLING-DEPENDENT SYNCHRONIZATION SWITCHING IN TIME DELAY LASER SYSTEMS

We study a system of two lasers that are mutually coupled opto-electronically by modulating the pump of one laser with the intensity deviations from the steady-state output of the other. Such systems are analogous to the equations describing the spread of certain diseases such as dengue epidemics in human populations coupled by migration, transportation, etc. By investigating the possibility of both in-phase (complete) and anti-phase (inverse) synchronization between the laser systems, we establish that depending on the coupling rates between the systems, a transition from the in-phase (complete) synchronization to the anti-phase (inverse) synchronization might occur. The results are important for the disruption of the spread of these infectious diseases in human populations