Qing Fang;Huiming Wang;Hanxu Zhou;Can Jiang;Weizheng Di;Gaofeng Xu;Tao Wang
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引用次数: 0
Abstract
Spin-polarized carriers generated in semiconductor cavities by electrical injection or circularly polarized light, favour the realization of newly developed spin-VCSELs. Such light sources have been considered as a type of information carrier, which can supply the enhanced performance for communications and signal processing. In this work, we provide a numerical investigation of the nonlinear dynamics of semiconductor lasers with injection of controllable spin-polarized electrons, in particular, pay more attention on the influence of noise of two polarization states. Through using the second-order correlation functions, we reveal that superthermal emission properties associated with
$g^{(2)}(0) > 2$
can be generated through modifying the spin of pump current. The noise effect on laser emission can be tuned by modifying the pump ellipticity, which is significant for the laser device design and fabrication. In addition, the corresponding polarization dynamics characterized by the Poincaré sphere is also discussed. Our study may supply a theoretical guidance for people to better understand the underlying dynamics of spin-VCSELs.
期刊介绍:
The IEEE Journal of Quantum Electronics is dedicated to the publication of manuscripts reporting novel experimental or theoretical results in the broad field of the science and technology of quantum electronics. The Journal comprises original contributions, both regular papers and letters, describing significant advances in the understanding of quantum electronics phenomena or the demonstration of new devices, systems, or applications. Manuscripts reporting new developments in systems and applications must emphasize quantum electronics principles or devices. The scope of JQE encompasses the generation, propagation, detection, and application of coherent electromagnetic radiation having wavelengths below one millimeter (i.e., in the submillimeter, infrared, visible, ultraviolet, etc., regions). Whether the focus of a manuscript is a quantum-electronic device or phenomenon, the critical factor in the editorial review of a manuscript is the potential impact of the results presented on continuing research in the field or on advancing the technological base of quantum electronics.