Selecting dynamics of the quantum dot light emitting diode with a small optical feedback strength

Hussein B. Al Husseini and Hussein A. Al Rekabie

Chaos, Solitons & Fractals, 2019, vol. 118, issue C, 199-206

Abstract: In this work a four-variable dimensionless model of a quantum dot light emitting diode (QD-LED) under optical feedback effect is studied. Depending on the optical feedback (OFB) strength a complex bifurcation scenarios for the photon intensity were completely determined by the variation of the OFB in the QD as well as time series, inter-spike interval (ISI) and phase plane of all dynamic variables of the QD-LED. Our results show that small OFB lead to a good controllability of QD-LED dynamics as evidenced by the bifurcation diagram. The delay time leads to delay control of dynamics. Moreover, bias has a clear and greater effect than that of OFB. By adding a grating mirror as a special technique to suppress unwanted frequencies, there is an important transition between periodic and chaotic states. Delayed feedback and turn-on dynamics are studied.

Keywords: QD-LED; Optical feedback; Dimensionless model; Grating mirror; Chaos; Control (search for similar items in EconPapers)
Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:118:y:2019:i:c:p:199-206

DOI: 10.1016/j.chaos.2018.11.006

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