Chaos and its characterization in multi-quantum-well laser with periodic-optical pulse injection

We reveal theoretically chaos and its characterization in a multi-quantum-well (MQW) laser based on periodic-optical pulse injection. Under the effect of periodic-optical pulse injection, the multi-quantum-well laser reveals rich nonlinear dynamics. The results show that the laser can be controlled into single-periodic, dual-periodic, triple-periodic, four-periodic, multi-periodic and chaos for different modulation frequencies and coupling constants; the system has a larger space of parameters.