All-optical reversible logic gates can play crucial roles in the next generation of all-optical computing systems. In this paper, we will propose and design an all-optical Toffoli gate using photonic crystal-based nonlinear ring resonators. The proposed structure has three input and three output ports. There is a one-by-one mapping between the input and output ports; therefore, the proposed structure is a reversible gate with the maximum time delay about 2 ps and suitable for optical communication applications.

中文翻译：

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基于光子晶体非线性环形谐振器的快速光学托夫里门的创建

全光可逆逻辑门可以在下一代全光计算系统中发挥关键作用。在本文中，我们将提出并设计一个基于光子晶体的非线性环形谐振器的全光Toffoli门。所提出的结构具有三个输入端口和三个输出端口。输入和输出端口之间存在一对一的映射。因此，所提出的结构是可逆门，其最大时间延迟约为2 ps，适用于光通信应用。