4.6 Article

Optical Logic Gates Based on Z-Shaped Silicon Waveguides at 1.55 μm

期刊

MICROMACHINES
卷 14, 期 6, 页码 -

出版社

MDPI
DOI: 10.3390/mi14061266

关键词

optical logic gates; silicon waveguide; Z shape; contrast ratio

向作者/读者索取更多资源

Silicon photonics has made significant progress in terms of device functionality, performance, and circuit integration in the past decade. In this study, we theoretically demonstrate a complete family of all-optical logic gates (AOLGs) using finite-difference-time-domain simulations. The proposed compact silicon-on-silica optical waveguides operate at 1.55 μm and show improved contrast ratios (CRs) and higher speeds compared to other designs. These findings suggest that AOLGs can be realized affordably and meet the requirements of lightwave circuits and systems.
In the last ten years, silicon photonics has made considerable strides in terms of device functionality, performance, and circuit integration for a variety of practical uses, including communication, sensing, and information processing. In this work, we theoretically demonstrate a complete family of all-optical logic gates (AOLGs), including XOR, AND, OR, NOT, NOR, NAND, and XNOR, through finite-difference-time-domain simulations using compact silicon-on-silica optical waveguides that operate at 1.55 & mu;m. Three slots, grouped in the shape of the letter Z, make up the suggested waveguide. The function of the target logic gates is based on constructive and destructive interferences that result from the phase difference experienced by the launched input optical beams. These gates are evaluated against the contrast ratio (CR) by investigating the impact of key operating parameters on this metric. The obtained results indicate that the proposed waveguide can realize AOLGs at a higher speed of 120 Gb/s with better CRs compared to other reported designs. This suggests that AOLGs could be realized in an affordable manner and with improved outcomes to enable the satisfaction of the current and future requirements of lightwave circuits and systems that critically rely on AOLGs as core building elements.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.6
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据