Effect of gain saturation on the nonlinear dynamical behavior of optically injected semiconductor lasers

Authors : Furat Ahmad ALSAYMARI, Imad AlDeen Hussein ALSAIDI, May Jassim ASHOOR

Pages : 91-103

Doi:10.3906/fiz-1212-8

View : 15 | Download : 6

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :We studied numerically the dynamics and bifurcations route to chaos of an optically injected semiconductor laser. The sequence of bifurcations mainly followed the period-doubling scenario. Observations of different kinds of injected semiconductor laser dynamical behaviors including stable state, periodic oscillation state, quasi-periodic oscillation state, co-existence of periodic and chaotic states, and period-3 and period-6 oscillation states are reported. The existence of isolated branches created from a sudden jump in the dynamics of the semiconductor laser was also observed in the bifurcation diagram. In order to draw a detailed picture for the dynamical behavior of the semiconductor laser, we constructed color stability maps describing the laser system dynamics as a function of the pumping current insert ignore into journalissuearticles values(P); and the injection field strength insert ignore into journalissuearticles values(eta); for 2 cases, without and with gain saturation effect.
Keywords : Nonlinear dynamics, bifurcations, period doubling, chaos, semiconductor lasers