MMI-Based Simultaneous All-Optical XOR-NAND-OR and XNOR-NOT Multilogic Gate for Phase-Based Signals

被引：21

作者：

Mohammadnejad, Shahram ^{[1
]}

Chaykandi, Zahra Farrokhi ^{[2
]}

Bahrami, Ali ^{[1
]}

机构：

[1] Iran Univ Sci & Technol, Elect & Elect Engn Dept, Nanoptron Res Ctr, Tehran 1684613114, Iran

[2] Amirkabir Univ Technol, Dept Elect & Elect Engn, Semicond Lab, Tehran, Iran

来源：

IEEE JOURNAL OF QUANTUM ELECTRONICS | 2014年 / 50卷 / 12期

关键词：

Beam propagation method; semi binary-phase-shift-keyed; optical logic gate; multimode interference; ALGAAS MICRORING RESONATORS; LOGIC GATES;

D O I：

10.1109/JQE.2014.2365736

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We propose a novel design to simultaneously access various optical logic functions from different output ports. Logical values of inputs and outputs are defined in phase and intensity area of light, respectively. The proposed structure is composed of one multimode interference waveguide with the ultrasmall size of 2.5 mu m x 21 mu m. Three output ports of proposed structure offer XOR, NAND, and OR logic functions. In addition, XNOR and NOT logic gates are realized by considering some changes in the conditions. Beam propagation method has been utilized to accomplish the simulations of light propagation. Simulation results of structure in whole C-band show that the maximum insertion loss is -0.14 dB and the least contrast ratio achieved for XOR, NAND, OR, XNOR, and NOT logic functions are 26, 24.7, 25.9, 26, and 25 dB, respectively.

引用

页码：1014 / 1018

页数：5

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