This paper presents new structures for OR, NOT, and XOR logic gates based on a two-dimensional photonic crystal. The proposed structures are quite linear and have the same basic structure for all three gates. Isolation between input ports is one of the features that is given special attention in this study. The proposed designs reduce the leakage signal from an input port to another input port to less than 17%. The reflection to the input port is less than 30% in the worst case. The structures are designed and simulated, and then their characteristics are compared to previous works. The simulation results show that the proposed structures, despite being linear, have a smaller size, faster response time, and acceptable contrast ratio in comparison to those of the other works. The results of the tolerance study demonstrate that manufacturing tolerance must be less than 5% for the proposed gates’ working properly.

中文翻译：

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基于具有高端口到端口隔离的线性光子晶体的全光 OR、NOT 和 XOR 门

本文介绍了基于二维光子晶体的 OR、NOT 和 XOR 逻辑门的新结构。所提出的结构非常线性，并且所有三个门都具有相同的基本结构。输入端口之间的隔离是本研究中特别关注的特性之一。建议的设计将从一个输入端口到另一个输入端口的泄漏信号减少到 17% 以下。在最坏的情况下，输入端口的反射小于 30%。对结构进行设计和模拟，然后将它们的特性与以前的作品进行比较。仿真结果表明，与其他作品相比，所提出的结构尽管是线性的，但具有更小的尺寸、更快的响应时间和可接受的对比度。