Mixed mode oscillations and chaotic spiking in Quantum Dot Light Emitting Diodes

Author

Al Naimee, K. ; Al Husseini, H. ; Abdalah, S.F. ; Al Khursan, A. ; Khedir, A.H. ; Meucci, R. ; Arecchi, F.T.

Author_Institution

Ist. Naz. di Ottica, Florence, Italy

fYear

2014

fDate

16-17 June 2014

Firstpage

1

Lastpage

5

Abstract

We report both experimentally and theoretically the appearance of Mixed Mode Oscillations and chaotic spiking in Quantum Dot Light Emitting Diode. The proposed dimensionless model exhibits homoclinic chaos Furthermore, it is also able to reproduce Mixed Mode Oscillations and chaotic spiking regimes. The chaotic dynamics is completely determined by the variation of the injecting bias current and modulating current of the carrier in the wetting layer, as evidenced by means of the modulation depth of the system and bifurcation diagram. The influence of the injecting current on the transition between Mixed Mode Oscillations and chaos has been also investigated.

Keywords

bifurcation; light emitting diodes; optical chaos; semiconductor quantum dots; bifurcation diagram; chaotic dynamics; chaotic spiking regimes; dimensionless model; homoclinic chaos; injecting bias current; mixed mode oscillations; modulating current; modulation depth; quantum dot light emitting diodes; wetting layer; Bifurcation; Chaos; Educational institutions; Mathematical model; Modulation; Oscillators; Chaos; Mixed Mode Oscillations; Quantum Dot LED; control;

fLanguage

English

Publisher

ieee

Conference_Titel

Complexity in Engineering (COMPENG), 2014

Conference_Location

Barcelona

Type

conf

DOI

10.1109/CompEng.2014.6994684

Filename

6994684