Time-Scale Independent Permutation Entropy of a Photonic Integrated Device

Autor: Apostolos Argyris, J. P. Toomey, Deborah M. Kane, C. J. McMahon, Dimitris Syvridis
Přispěvatelé: Australian Research Council, Sirca Technology Pty, Macquarie University, Science and Industry Endowment Fund (Australia)
Rok vydání: 2017
Předmět:
Zdroj: Digital.CSIC. Repositorio Institucional del CSIC
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ISSN: 1558-2213
0733-8724
DOI: 10.1109/jlt.2016.2626387
Popis: A new measure of complexity, time-scale independent permutation entropy, has been developed and applied to fully characterize the relative complexity of the emission of a four-section photonic integration chip (PIC) laser. The new technique allows the relative complexity of dynamics with different characteristic time scales to be compared. The analysis reveals the range of possible outputs the PIC device can produce over a three-dimensional operating parameter space. From the perspective of using such devices as synchronized transmitter and receiver pairs in chaos-based secure communication applications, a region of uninterrupted, highly complex, unpredictable dynamics has been identified for the device. Regions surrounding this desired complex state show intermittency, pulse packages, and limit-cycle oscillations. The effect of varying the laser's biasing current, feedback strength, and feedback phase reveals the extent of the short-cavity regime and provides insight to the fundamental physics driving the integrated device dynamics.
Australian Research Council; Sirca Technology Pty Ltd; Macquarie University; Science and Industry Endowment Fund
Databáze: OpenAIRE