All-optical logic gates based on nonlinear slot-waveguide couplers
All-optical logic gates based on nonlinear slot-waveguide couplers
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DOI：
10.1364/josab.23.000684
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发表时间：
2006-04-01
影响因子：
1.9
通讯作者：
Koshiba, M
中科院分区：
文献类型：
--
作者：
Fujisawa, T;Koshiba, M
提出了一种基于非线性缝导耦合器的全光逻辑门设计方案。NOT、OR、AND逻辑门可以通过简单的单光定向耦合器配置来实现。利用缝隙光波导的强偏振相关性，实现了线性区域的偏振无关光定向耦合器和非线性区域的偏振相关全光开关。本文对三维非线性通道光波导结构进行了数值模拟，采用了专门针对非线性光波导的全矢量有限元方法建立的严格数值格式。(C)2006年美国光学学会。
A novel design of all-optical logic gates based on nonlinear slot-waveguide couplers is proposed. NOT, OR, and AND logic gates can be realized by a simple single optical-directional coupler configuration. Strong polarization dependencies of slot waveguides are effectively utilized for realizing polarization-independent optical-directional couplers in the linear regime and polarization-dependent all-optical switches in the nonlinear regime. All the simulations performed in this paper were performed for three-dimensional nonlinear channel waveguide structures by using rigorous numerical schemes based on the full-vector finite-element method specially formulated for nonlinear optical waveguides. (c) 2006 Optical Society of America.