All-optical NOR and XNOR logic gates at 2 Tb/s based on two-photon absorption in quantum-dot semiconductor optical amplifiers

doi:10.1007/s11082-019-2142-z

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	All-optical NOR and XNOR logic gates at 2 Tb/s based on two-photon absorption in quantum-dot semiconductor optical amplifiers
	A. Kotb and C. L. Guo
刊名	Optical and Quantum Electronics
	2020
卷号	52 期号:1 页码:19
ISSN号	0306-8919
DOI	10.1007/s11082-019-2142-z
英文摘要	Two-photon absorption (TPA) is a nonlinear absorption process in semiconductors, creating a fast phase change in a low-intensity probe beam. Placing quantum-dots (QDs), on the other hand, in the active region of semiconductor optical amplifiers (SOAs) results in SOAs shorter carrier recovery time and lower gain saturation. Thus, in this article, the physical advantages of both TPA and QDs have been combined to numerically investigate the performance of all-optical NOT-OR (NOR) and exclusive-NOR (XNOR) logic gates, incorporating in Mach-Zehnder interferometers at a data rate of 2 Tb/s. The output quality factor (QF) of the considered Boolean functions against the key operational parameters is assessed and examined, including the impact of amplified spontaneous emission in order to obtain more realistic results. The overall QF in the presence of TPA is always higher than that without TPA.
URL标识	查看原文
语种	英语
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/64299]
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	A. Kotb and C. L. Guo. All-optical NOR and XNOR logic gates at 2 Tb/s based on two-photon absorption in quantum-dot semiconductor optical amplifiers[J]. Optical and Quantum Electronics,2020,52(1):19.
APA	A. Kotb and C. L. Guo.(2020).All-optical NOR and XNOR logic gates at 2 Tb/s based on two-photon absorption in quantum-dot semiconductor optical amplifiers.Optical and Quantum Electronics,52(1),19.
MLA	A. Kotb and C. L. Guo."All-optical NOR and XNOR logic gates at 2 Tb/s based on two-photon absorption in quantum-dot semiconductor optical amplifiers".Optical and Quantum Electronics 52.1(2020):19.