Hidden dynamics of an optically injected laser diode subject to threshold electromagnetic induction: coexistence of multiple stable states

• Published in: The European physical journal. ST, Special topics Vol. 230; no. 7-8; pp. 1979 - 1988
• Main Authors: Tchinda, T. H., Njitacke, Z. Tabekoueng, Fonzin, T. Fozin, Fotsin, H. B.
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.08.2021; Springer Nature B.V
• Subjects: Atomic; Circuit Application of Chaotic Systems: Modeling; Circuit design; Classical and Continuum Physics; Condensed Matter Physics; Displays; Dynamical Analysis and Control; Electromagnetic induction; Emulators; Lasers; Materials Science; Mathematical models; Measurement Science and Instrumentation; Memristors; Molecular; Optical and Plasma Physics; Period doubling; Physics; Physics and Astronomy; Regular Article; Semiconductor lasers
• ISSN: 1951-6355; 1951-6401
• DOI: 10.1140/epjs/s11734-021-00134-9

In this contribution, we perform a detailed study of the effect of electromagnetic induction on the dynamical behavior of laser diode modeled by novel single-mode four-dimensional rate equations. Memristor is used to describe electromagnetic induction effect. As result, the obtained model is equilibrium free thus displays hidden dynamics. Consequently, Shilnikov method is not suitable to explain the chaos mechanism in the introduced laser model. Furthermore, there is no heteroclinic nor homoclinic orbit. Based on numerical simulations, we found that the laser model displays hidden dynamics including period doubling bifurcation, multistability (with three different stable states) and crisis phenomena when the electromagnetic strength is varied. The circuit emulator of laser model investigated in this paper has been designed in the Pspice environment to further support numerical results.