中国物理B ›› 2007, Vol. 16 ›› Issue (12): 3719-3727.doi: 10.1088/1009-1963/16/12/027

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All-optical XNOR and AND gates simultaneously realized in a single semiconductor optical amplifier with improved dynamics

黄德修1, 张新亮1, 李培丽2, 朱光喜2   

  1. (1)Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China; (2)Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China;Department of Electronics and Information, Huazhong University of Science andTechnology, Wuhan 430074, China
  • 出版日期:2007-12-20 发布日期:2007-12-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 60407001) and the National Science Foundation for Post-doctoral Scientists of China (Grant No 20060390246).

All-optical XNOR and AND gates simultaneously realized in a single semiconductor optical amplifier with improved dynamics

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)   

  1. a Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China; b Department of Electronics and Information, Huazhong University of Science andTechnology, Wuhan 430074, China
  • Online:2007-12-20 Published:2007-12-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 60407001) and the National Science Foundation for Post-doctoral Scientists of China (Grant No 20060390246).

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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.

关键词: All-optical logic gate, four-wave mixing, cross-gain modulation, semiconductor optical amplifier

Abstract: 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.

Key words: All-optical logic gate, four-wave mixing, cross-gain modulation, semiconductor optical amplifier

中图分类号:  (Optical computers, logic elements, interconnects, switches; neural networks)

  • 42.79.Ta
42.55.Px (Semiconductor lasers; laser diodes) 42.60.By (Design of specific laser systems) 42.65.Hw (Phase conjugation; photorefractive and Kerr effects) 84.30.Sk (Pulse and digital circuits)