PROJECT TITLE :

Enhancement of Chaotic Signal Bandwidth in VCSELs Induced by Polarized Optical Injection

ABSTRACT:

In this paper, we have a tendency to present a theoretical study of bandwidths of broadband chaotic signals generated by one-mode vertical-cavity surface-emitting laser subjected to optical injection and feedback. Both parallel and orthogonal optical injections are thought-about. Bandwidths of the linearly polarized and total signals are analyzed for various values of the linear dichroism and frequency of the injected field. For the case of parallel optical injection, our results are in agreement with recent experimental results of Hong et al. Both linear polarizations are excited when orthogonal optical injection is considered. During this case, the dependence of the orthogonal polarization bandwidth on the frequency detuning is almost like that found in the case of parallel injection. We have a tendency to conjointly predict that the selection of the orthogonal polarization can offer a much larger value of the chaotic bandwidth than that obtained in the overall emitted power.