Similarity properties in the dynamics of delayed-feedback semiconductor lasers

descriptionPublicationkeyboard_double_arrow_right Article 18 Feb 2014 English Publisher:American Physical Society (APS)Journal:Physical Review A, volume 89 (issn: 1050-2947, eissn: 1094-1622,

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Authors: Porte, Xavier; Soriano, Miguel C.; Fischer, Ingo;

doi: 10.1103/physreva.89.023822

handle: 10261/116277

Similarity properties in the dynamics of delayed-feedback semiconductor lasers

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Abstract

Semiconductor lasers with delayed feedback exhibit two fundamentally different dynamical states: weak and strong chaos. We characterize experimentally the mechanism for the emergence of strong chaos. Based on these insights, we demonstrate similarity properties for long delays, i.e., similar dynamics for different pump currents when adjusting the feedback strength. For different delay times, even the same time- and amplitude-rescaled version of the dynamics can be generated. Using a simple rate-equation model, these properties can be corroborated. The results have major consequences for the characterization and tailoring of the dynamics for applications. © 2014 American Physical Society.

This work was supported by MINECO (Spain), Comunitat Autònoma de les Illes Balears, FEDER, and the European Commission under Projects TEC2012-36335 (TRIPHOP), Grups Competitius, and EC FP7 Projects PHOCUS (Grant No. 240763).

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