Silicon photonic crystal all-optical logic gates
Silicon photonic crystal all-optical logic gates
复制标题
硅光子晶体全光逻辑门
DOI：
10.1016/j.physleta.2012.11.034
复制
发表时间：
2013-01-03
影响因子：
2.6
通讯作者：
Gong, Qihuang
中科院分区：
文献类型：
--
作者：
Fu, Yulan;Hu, Xiaoyong;Gong, Qihuang
利用光的干涉效应，在二维硅光子晶体中实现了全光逻辑门，包括或门、异或门、非门、同或门和与非门。巧妙的光子晶体波导器件设计、精确控制的光程差、精心设计的器件结构，保证了同时实现五种逻辑门的低功耗，逻辑状态“1”和“0”的对比度高达20 dB。这些逻辑门器件的操作不需要高功率。这为实现集成全光逻辑器件提供了一种简单有效的途径。(C)2012爱思唯尔有限公司版权所有。
All-optical logic gates, including OR, XOR, NOT, XNOR, and NAND gates, are realized theoretically in a two-dimensional silicon photonic crystal using the light beam interference effect. The ingenious photonic crystal waveguide component design, the precisely controlled optical path difference, and the elaborate device configuration ensure the simultaneous realization of five types of logic gate with low-power and a contrast ratio between the logic states of "1" and "0" as high as 20 dB. High power is not necessary for operation of these logic gate devices. This offers a simple and effective approach for the realization of integrated all-optical logic devices. (C) 2012 Elsevier B.V. All rights reserved.