中国物理B ›› 2007, Vol. 16 ›› Issue (12): 3719-3727.doi: 10.1088/1009-1963/16/12/027
黄德修1, 张新亮1, 李培丽2, 朱光喜2
Li Pei-Li(李培丽)a)b)†, Huang De-Xiu(黄德修)a), Zhang Xin-Liang(张新亮)a), and Zhu Guang-Xi(朱光喜)a)b)
摘要: All-optical XNOR and AND logic gates using four-wave mixing (FWM) and cross-gain modulation (XGM) in a single semiconductor optical amplifier (SOA) with improved dynamics are simultaneously realized. By numerical simulation, the effects of the input optical wave powers and injection current on the critical factors of the logic gate performances, such as the ON--OFF contrast ratio, the power-output level of the logic `1', and the difference between power outputs of the logic `1', are investigated in detail. In addition, the effect of the counter-propagating CW pump on the gain recovery is analysed.
中图分类号: (Optical computers, logic elements, interconnects, switches; neural networks)