Study on chaos characteristics in mutually coupled semiconductor lasers

In order to study the chaos complexity degree and bandwidth of mutually coupled semiconductor lasers, numerical analysis was carried out based on their rate equations.The results indicate that the chaotic bandwidth enhances with the increase of injection coefficient,and chaos turns more complicated.The higher the current biases,the larger chaotic bandwidth turns and the more complex the chaos wave is.These results provide theoretic guidance to realize broad bandwidth complex chaos.