Chen Feng, Zhou Shenghang, Xia Yuhong, Yu Xing, Liu Jia, Li Fuhua, Sui Xiubao
Appl Opt. 2024 Jan 1;63(1):147-153. doi: 10.1364/AO.510590.
Photonic integrated circuits with compact design have opened possibilities for the development of optical computing systems; however, the overuse of photonic components in optical designs has slowed the progress of dense integration. In this paper, we propose an ultra-compact optical full-adder based on directed logic and microring resonators. To the best of our knowledge, the proposed structure requires fewer optical components than any other current designs, resulting in a significantly reduced footprint 59.2µ×29.2µ. Also, the proposed structure exhibits a maximum delay time of approximately 10 ps, implying a minimum date rate of 100 GHz. Simulation results by finite-difference time-domain (FDTD) demonstrate the effectiveness and feasibility of the proposed optical full-adder.
设计紧凑的光子集成电路为光学计算系统的发展开辟了可能性；然而，光学设计中光子组件的过度使用减缓了密集集成的进程。在本文中，我们提出了一种基于定向逻辑和微环谐振器的超紧凑型光学全加器。据我们所知，所提出的结构比目前的任何其他设计所需的光学组件都要少，从而使占地面积显著减小，仅为59.2µ×29.2µ。此外，所提出的结构表现出约10 ps的最大延迟时间，这意味着最低数据速率为100 GHz。有限时域差分法（FDTD）的仿真结果证明了所提出的光学全加器的有效性和可行性。
