- Turkish Journal of Physics
- Vol: 38 Issue: 1
- Effect of gain saturation on the nonlinear dynamical behavior of optically injected semiconductor la...
Effect of gain saturation on the nonlinear dynamical behavior of optically injected semiconductor lasers
Authors : Furat Ahmad Al-saymari, Imad Al-deen Hussein Al-saidi, May Jassim Ashoor
Pages : 91-103
Doi:10.3906/fiz-1212-8
View : 7 | Download : 4
Publication Date : 9999-12-31
Article Type : Makaleler
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 (P) and the injection field strength (eta) for 2 cases, without and with gain saturation effect.Keywords : Nonlinear dynamics, bifurcations, period-doubling, chaos, semiconductor lasers