Dynamic analysis and continuous control of semiconductor lasers

Details Dynamic analysis and continuous control of semiconductor lasers Dynamic analysis and continuous control of semiconductor lasers

2010-10-22

arxiv.org/abs/1101.3705v1

Physics

Optics

12 pages, 12 figures

Scientific paper

Stability control in laser is still an emerging field of research. In this paper the dynamics of External cavity semiconductor lasers (ECSLs) is widely studied applying the methods of chaos physics. The stability is analyzed through plotting the Lyapunov exponent spectra, bifurcation diagrams and time series. The oscillation of the electric field E has been reported to be either periodic (P1,P2,..) or chaotic. The results of the study show that the rich nonlinear dynamics of the electric field |E|^2 includes saddle node bifurcations, quasi-periodicity and regular pulse packages. The issue of finding the conditions for creating stable domains has been studied. By considering the dynamical pumping current system coupled with laser, a method for the creation of the stable domain has been introduced.

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