| 基于非线性定向耦合器的光二进制逻辑器件 |
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| 引用本文： | 王又法,王子华. 基于非线性定向耦合器的光二进制逻辑器件[J]. 光子学报, 2000, 29(3): 223-226 |
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| 作者姓名： | 王又法 王子华 |
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| 作者单位： | [1]上海海运学院电子工程系,上海 [2]上海大学嘉定校区光纤与现代通信研究所,上海 |
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| 摘 要： | 本文提出了一种新的非双稳态光学逻辑器件,它由一个双端输入的非线性光波导耦合器产生相应的输入输出波形,再经过多级单端输入的非线性耦合器进行波形限幅和整形,以获得阶跃开关特性.通过理论计算说明适当选择输入条件,这种器件可以实现所有六种基本的二进制逻辑运算功能:与、或、与非、与或、异或和同或.
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| 关 键 词： | 光逻辑器件 非线性光定向耦合器 非线性光学 |
| 收稿时间： | 1999-09-20 |
| 修稿时间： | 1999-09-20 |
OPTICAL LOGIC DEVICES BASED ON THE NONLINEAR DIRECTIONAL COUPLERS |
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| Wang Youfa. OPTICAL LOGIC DEVICES BASED ON THE NONLINEAR DIRECTIONAL COUPLERS[J]. Acta Photonica Sinica, 2000, 29(3): 223-226 |
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| Authors: | Wang Youfa |
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| Affiliation: | 1. Department of Electronic Engineering, Shanghai Maritime University, Shanghai 200135;2. Wave Science Laboratory, Shanghai University, Jiading, Shanghai 201800 |
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| Abstract: | A new opticallogic device,which is not bistable,has been presented in this paper.It is composed of anonlinear directional coupler with two-input excitation which produces correspondinginput-out characteristi c and a cascaded nonlinear coupler with single-input excitationwhich improves the waveform.Numerical calculations show that under suitable inputconditions,th e device can perform all the six fundamental logicoperationsAND,OR,NAND,NOR,XO R and NXOR. |
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| Keywords: | Optical logic devices Nonlinear optical directional couplers Nonlinear optics |
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