All-optical AND/OR/NOT logic gates based on photonic crystal ring resonators

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• 作者：Ashkan Pashamehr ; Mahdi Zavvari ; Hamed Alipour-Banaei
• 关键词：photonic crystal (PhC) ; all optical logic gate ; ring resonator ; Kerr effect
• 刊名：Frontiers of Optoelectronics
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：9
• 期：4
• 页码：578-584
• 全文大小：
• 刊物类别：Engineering
• 刊物主题：Electrical Engineering; Physics, general; Biomedical Engineering;
• 出版者：Higher Education Press
• ISSN：2095-2767
• 卷排序：9

文摘

Photonic crystal based ring resonators are best choice for designing all-optical devices. In this paper, we used a basic structure of photonic crystal ring resonators and designed all optical logic gates which are working using the Kerr effect. The proposed gates consisted of upper and lower waveguides coupled through a resonator which was designed for dropping of special wavelength. The resonance wavelength was designed for 1550 nm telecom operation wavelength. We used numerical methods such as plane wave expansion and finite difference time domain (FDTD) for performing our simulations and studied the optical properties of the proposed structures. Our results showed that the critical input power for triggering the gate output was lower compared to previously reported gates.