二维光子晶体全光异或门的设计及研究

张晓金; 梁龙学; 吴小所; 韩根亮

doi:10.3788/fgxb20183912.1772

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二维光子晶体全光异或门的设计及研究

发光学应用及交叉前沿 | 更新时间：2020-08-12

- 二维光子晶体全光异或门的设计及研究
- Design and Study of Whole Optical XOR Logic Gate of Two Dimensional Photonic Crystals
- 发光学报 2018年39卷第12期页码：1772-1777
- 作者机构：
  
  1. 兰州交通大学电子与信息工程学院,甘肃兰州,730070
  2. 甘肃省科学院传感技术研究所,甘肃兰州,730070
- 作者简介：
- 基金信息：
  
  国家自然科学基金（61366006）资助项目()
- DOI：10.3788/fgxb20183912.1772
  中图分类号： TN256
- 收稿日期：2018-03-22，
  
  修回日期：2018-07-06，
  
  网络出版日期：2018-07-26，
  
  纸质出版日期：2018-12-05
- 稿件说明：
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张晓金, 梁龙学, 吴小所等. 二维光子晶体全光异或门的设计及研究[J]. 发光学报, 2018,39(12): 1772-1777

ZHANG Xiao-jin, LIANG Long-xue, WU Xiao-suo etc. Design and Study of Whole Optical XOR Logic Gate of Two Dimensional Photonic Crystals[J]. Chinese Journal of Luminescence, 2018,39(12): 1772-1777
张晓金, 梁龙学, 吴小所等. 二维光子晶体全光异或门的设计及研究[J]. 发光学报, 2018,39(12): 1772-1777 DOI： 10.3788/fgxb20183912.1772.

ZHANG Xiao-jin, LIANG Long-xue, WU Xiao-suo etc. Design and Study of Whole Optical XOR Logic Gate of Two Dimensional Photonic Crystals[J]. Chinese Journal of Luminescence, 2018,39(12): 1772-1777 DOI： 10.3788/fgxb20183912.1772.

摘要

分析了二维光子晶体马赫-曾德尔干涉仪的传输特性，将二维光子晶体波导、环形腔和马赫-曾德尔干涉仪有效结合，提出了一种基于二维光子晶体马赫-曾德尔干涉仪的异或门设计。用平面波展开法分析二维光子晶体能带结构，并用时域有限差分法验证光信号在该器件中的电场稳态分布。结果表明，该结构能够实现异或逻辑，且具有高逻辑对比度7.88 dB，快速响应周期0.388 ps和高传输速率7.87 Tbit/s；并且该器件结构尺寸仅为13 m14 m，易于集成。该异或逻辑结构中引入了二维光子晶体马赫-曾德尔干涉仪，使得光子晶体逻辑门结构的设计更加多样，并为二维光子晶体半加器与全加器的设计提供了基础，具有重要的研究意义。

Abstract

Transmission characteristics of two-dimensional photonic crystals Mach-Zehnder interferometer are analyzed

then the two-dimensional photonic crystal waveguides

circular cavity and Mach-Zehnder interferometer are combined with a reasonable way. In the end

a XOR gate based on two-dimensional photonic crystals Mach-Zehnder interferometer is proposed. Plane wave expansion (PWE) is used to analyze the band structure of two-dimensional photonic crystal

and finite difference time domain(FDTD) is used to verify the steady-state distribution of optical signals in the device. The research shows that the structure can achieve XOR logical functions

with high logical contrast 7.88 dB

fast response cycle 0.388 ps and high transmission rate 7.87 Tbit/s. And the structure size is only 13 m14 m so that it is easily to integrate. The XOR logic structure based on two-dimensional photonic crystals Mach-Zehnder interferometer

makes the design of photonic crystal logic gate more diverse

and it also provides the foundation for half adder and full adder design of two-dimensional photonic crystals

which has important research significance.

关键词

Keywords

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