›› 2014, Vol. 23 ›› Issue (9): 90503-090503.doi: 10.1088/1674-1056/23/9/090503

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Synchronous implementation of optoelectronic NOR and XNOR logic gates using parallel synchronization of three chaotic lasers

颜森林   

  1. School of Physics and Electronic Engineering, Nanjing Xiaozhuang University, Nanjing 210017, China
  • 收稿日期:2013-11-08 修回日期:2014-01-30 出版日期:2014-09-15 发布日期:2014-09-15
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 11204139).

Synchronous implementation of optoelectronic NOR and XNOR logic gates using parallel synchronization of three chaotic lasers

Yan Sen-Lin (颜森林)   

  1. School of Physics and Electronic Engineering, Nanjing Xiaozhuang University, Nanjing 210017, China
  • Received:2013-11-08 Revised:2014-01-30 Online:2014-09-15 Published:2014-09-15
  • Contact: Yan Sen-Lin E-mail:yansenlinbsh@sina.com
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 11204139).

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摘要： The parallel synchronization of three chaotic lasers is used to emulate optoelectronic logic NOR and XNOR gates via modulating the light and the current. We deduce a logical computational equation that governs the chaotic synchronization, logical input, and logical output. We construct fundamental gates based on the three chaotic lasers and define the computational principle depending on the parallel synchronization. The logic gate can be implemented by appropriately synchronizing two chaotic lasers. The system shows practicability and flexibility because it can emulate synchronously an XNOR gate, two NOR gates, and so on. The synchronization can still be deteceted when mismatches exist with a certain range.

关键词: chaos, synchronization, optical logic, semiconductor laser

Abstract: The parallel synchronization of three chaotic lasers is used to emulate optoelectronic logic NOR and XNOR gates via modulating the light and the current. We deduce a logical computational equation that governs the chaotic synchronization, logical input, and logical output. We construct fundamental gates based on the three chaotic lasers and define the computational principle depending on the parallel synchronization. The logic gate can be implemented by appropriately synchronizing two chaotic lasers. The system shows practicability and flexibility because it can emulate synchronously an XNOR gate, two NOR gates, and so on. The synchronization can still be deteceted when mismatches exist with a certain range.

Key words: chaos, synchronization, optical logic, semiconductor laser

中图分类号:  (Control of chaos, applications of chaos)

  • 05.45.Gg
42.55.Px (Semiconductor lasers; laser diodes) 42.65.Sf (Dynamics of nonlinear optical systems; optical instabilities, optical chaos and complexity, and optical spatio-temporal dynamics) 02.10.Ab (Logic and set theory)