Directed XOR/XNOR logic circuit implemented by microring resonators: simulation and demonstration

被引：2

作者：

Zhang, Lei ^{[1
]}

Ji, Ruiqiang ^{[1
]}

Jia, Lianxi ^{[1
]}

Yang, Lin ^{[1
]}

Zhou, Ping ^{[1
]}

Tian, Yonghui ^{[1
]}

Chen, Ping ^{[1
]}

Lu, Yangyang ^{[1
]}

Jiang, Zhenyu ^{[1
]}

Liu, Yuliang ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Semicond, Optoelect Syst Lab, Beijing 100083, Peoples R China

来源：

3RD INTERNATIONAL PHOTONICS AND OPTOELECTRONICS MEETINGS (POEM 2010) | 2011年 / 276卷

关键词：

SILICON ELECTROOPTIC MODULATOR;

D O I：

10.1088/1742-6596/276/1/012105

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：

A directed logic circuit consisting of two silicon microring resonators which can perform XOR and XNOR operations has been proposed. These two operations are evaluated as the optical signal is directed along the circuit, and the results appear at some specific output ports of the circuit. A potential advantage of this new logical paradigm is that it has markedly less state delay than traditional logic circuits. Devices based on the above proposal are fabricated on an 8-inch silicon-on-insulator wafer. The microring resonators in the circuit are modulated through thermo-optic effect. Two electrical modulating signals applied to the microring resonators represent the two operands of the logical operation respectively. Bitwise XOR and XNOR operations at 20 kbit/s are demonstrated. The scattering matrix method is adopted to analyse the transmission spectra of the circuit. The symmetrical characteristics of the spectra are well described by this model. The potential applications of this device are given.

引用

页数：8

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