Refractory period of an excitable semiconductor laser with optical injection.
basic_science · Level V
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- Record sourced from PubMed, PMID 28208426.
- Also identified by DOI 10.1103/PhysRevE.95.012214.
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Abstract
Injection-locked semiconductor lasers can be brought to a neuronlike excitable regime when parameters are set close to the unlocking transition. Here we study experimentally the response of this system to repeated optical perturbations and observe the existence of a refractory period during which perturbations are not able to elicit an excitable response. The results are analyzed via simulations of a set of dynamical equations which reproduced adequately the experimental results.