Journal
IEEE JOURNAL OF QUANTUM ELECTRONICS
Volume 47, Issue 2, Pages 252-261Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JQE.2010.2078799
Keywords
Chaos; optical feedback; permutation entropy; permutation statistical complexity; semiconductor lasers; time scale identification
Categories
Funding
- Ministerio de Educacion y Ciencia (Spain)
- MICINN (Spain)
- FEDER [TEC2006-10009/MIC (PhoDeCC), TEC2009-14101 (DeCoDicA), FIS2007-60327 (FISICOS)]
- EC [240763]
- Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET), Argentina
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We analyze the intrinsic time scales of the chaotic dynamics of a semiconductor laser subject to optical feedback by estimating quantifiers derived from a permutation information approach. Based on numerically and experimentally obtained times series, we find that permutation entropy and permutation statistical complexity allow the extraction of important characteristics of the dynamics of the system. We provide evidence that permutation statistical complexity is complementary to permutation entropy, giving valuable insights into the role of the different time scales involved in the chaotic regime of the semiconductor laser dynamics subject to delay optical feedback. The results obtained confirm that this novel approach is a conceptually simple and computationally efficient method to identify the characteristic time scales of this relevant physical system.
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