We have provided two compact designs of on-chip silicon photonic crystal (PhC) AND and XOR logic devices, which can provide multiple logic functions through different input frequencies within one structure. Compared to the former ones, the overall size is short to 10a × 18a (approximately 4 × 8 μm²). The working principle of the structures is lead to the directional leakage of the center cavity and the signal contrast are reached to 5.7 dB of AND and -19.66 dB of XOR functions, which could have potential applications in the field of all-optical signal processing and integrated optical circuits.

中文翻译：

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基于定向泄漏的片上硅光子晶体AND和XOR逻辑器件的紧凑设计

我们提供了两种紧凑设计的片上硅光子晶体 (PhC) AND 和 XOR 逻辑器件，它们可以在一个结构内通过不同的输入频率提供多种逻辑功能。与前者相比，整体尺寸缩短至 10 a  × 18 a（约 4 × 8 μm ²）。该结构的工作原理是导致中心腔定向泄漏，信号对比度达到AND的5.7 dB和XOR函数的-19.66 dB，在全光信号处理和信号处理领域具有潜在的应用前景。集成光路。