硅基光子逻辑门的相位感知逆向设计
Phase-aware Inverse Design for Silicon Photonic Logic Gates
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中文总结 AI 辅助
提出一种物理驱动的逆向设计框架，在2×2微米平方区域内实现全部基本布尔逻辑门，通过复合品质因数控制干涉，实验验证了C波段性能，为紧凑集成光学计算提供可扩展方案。
中文摘要 AI 辅助
逆向设计已成为实现紧凑光子器件的强大策略；然而，其在逻辑运算中的应用仍受制于物理可解释性、架构通用性和实验验证等方面的挑战。本工作提出了一种经实验验证的、统一的、物理驱动的逆向设计框架，在单一硅光子架构中实现了所有基本布尔逻辑门。器件在绝缘体上硅平台的2×2微米平方设计区域内制造，是所报道的光子逻辑元件中最小的面积之一。通过将振幅、相位和能量守恒整合到一个复合品质因数中，该方法能够直接控制相长和相消干涉。因此，包括异或门和三输入与非/或非运算在内的所有逻辑功能，均可通过具有两个逻辑输入和一个偏置端口的标准化配置实现。实验结果与C波段的数值模拟表现出良好的一致性，证实了该方法的预测准确性和制造鲁棒性。性能基准测试显示，与先前实现相比，对比度具有竞争力，同时提供了一种统一且可扩展的设计策略。这些发现为逆向设计光子逻辑建立了一个物理可解释且经实验验证的范式，推动了紧凑型集成光学计算系统的发展。
英文摘要
Inverse design has emerged as a powerful strategy for realizing compact photonic devices; however, its application to logic operations remains constrained by challenges in physical interpretability, architectural generality, and experimental validation. This work introduces an experimentally validated, unified, and physics-driven inverse design framework that implements all fundamental Boolean logic gates within a single silicon photonic architecture. Devices are fabricated within a 2 x 2 um^2 design region on a silicon-on-insulator platform, representing one of the smallest areas reported for photonic logic elements. By integrating amplitude, phase, and energy conservation into a composite figure of merit, the proposed approach enables direct control over constructive and destructive interference. Consequently, all logic functions, including XOR and three-input NAND/NOR operations, are achieved using a standardized configuration with two logical inputs and a bias port. Experimental results exhibit good agreement with numerical simulations across the C-band, confirming both the predictive accuracy and fabrication robustness of the method. Performance benchmarking reveals competitive contrast ratios compared to previous implementations, while providing a unified and scalable design strategy. These findings establish a physically interpretable and experimentally validated paradigm for inverse-designed photonic logic, advancing the development of compact, integrated optical computing systems.
发表机构
- Universidade Federal de Minas Gerais（米纳斯吉拉斯联邦大学）
- École de Technologie Supérieure (ÉTS)（高等技术学院）
机构由 AI 辅助整理，请以论文原文为准。
