Injection-locked semiconductor lasers with delayed optoelectronicfeedback |
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| Authors: | Saboureau P. Foing J.-P. Schanne P. |
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| Affiliation: | Direction des Centres d' Expertise et d'Essais, CREA, Arcueil; |
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| Abstract: | Optical injection and optoelectronic feedback are efficient techniques to externally control the spectral characteristics of a semiconductor laser. This paper presents theoretical and experimental results about the effects of a delayed optoelectronic feedback loop on the stability of an optically injected diode laser. In particular, negative feedback configurations (out-of-phase carrier reinjection) are shown to widen the injection-locking domain of the laser and reduce its unstable region. On the contrary, in positive feedback configurations (in-phase carrier reinjection), the laser diode generates a modulation with tunable multigigahertz frequency |
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