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Dynamic behavior and locking of a semiconductor laser subjected to external injection

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4 Author(s)
Annovazzi-Lodi, V. ; Dipt. di Elettronica, Pavia Univ., Italy ; Scire, A. ; Sorel, M. ; Donati, S.

In this paper, we analyze the phenomena arising when a monomode semiconductor laser is subjected to external injection from another laser. The system stability is investigated as a function of detuning and of the relative injected power. Different regimes, spanning from phase locking to chaos and coherence collapse, are described by analytical and numerical methods for weak and moderate injection. Previous theoretical studies are extended by describing the inverse transition from chaos to stability and by deriving the final locking condition. Also, further investigation on the coherence collapse regime has been performed. Besides contributing to the exploration of an interesting fundamental phenomenon, the results of this analysis are useful for different applications, including coherent detection and chaotic cryptography

Published in:

Quantum Electronics, IEEE Journal of  (Volume:34 ,  Issue: 12 )