Chaos in Semiconductor Lasers with Optical Injection
Today laser diodes have become a tool that has found use from such simple applications as disc players and pointers to their use in advanced laboratories as a spectroscopic tool. Nevertheless under a number of external influences they show a very complicated behavior that has yet to be understood completely. Semiconductor laser diodes are class B lasers, which means that the polarization can be eliminated adiabatically because the time constant associated with it is very fast in comparison to the rest of the time scales. As a result their behavior is quite benign and exhibit only relaxation oscillations as a transient to steady state. However any external influence results in such complicated behavior that in one instance it was termed as coherence collapse. Such complicated behavior has been observed in laser diodes which have been subjected to current modulation, minuscule external feedback and in diode lasers subjected to injection from another laser. Coupled diode lasers also exhibit very much the sane behavior.
KeywordsHopf Bifurcation Bifurcation Diagram Phase Equation Period Doubling Period Doubling Bifurcation
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