Concave Rectangle Photonic Crystal Ring Resonator for Ultra-Fast All-Optical Modulation

被引：2

作者：

Rebhi S. ^{[1
]}

Massoudi R. ^{[1
]}

Najjar M. ^{[2
]}

机构：

[1] National Engineering School of Tunis, University of Tunis El Manar, Tunis

[2] Higher Institute of Computer science, University of Tunis El Manar, Ariana

来源：

Journal of Optical Communications | 2021年 / 42卷 / 01期

关键词：

extinction ratio; Kerr effect; OOK modulation; photonic crystal; ring resonator; switching time;

D O I：

10.1515/joc-2018-0049

中图分类号：

学科分类号：

摘要：

In this paper, an ultra-fast all-optical modulator, based on a new shape of nonlinear photonic crystal ring resonator, is designed and studied. Numerical methods such as plane wave expansion (PWE) and finite-difference time domain (FDTD) are used to perform simulations. The modulation technique consists of carrier light controlling by means of input light signal and Kerr effect. The investigation of extinction ratio and insertion loss within the carrier input power shows that the choice of 0.7 W is the optimal value of that power to ensure the tradeoff between both characteristics. The suggested modulator demonstrates an excellent extinction ratio about 20.8018, a very low insertion loss of -13.98 and a short switching time about 13.4 ps. According to the obtained results, the modulator can be considered as an ultra-fast and ultra-compact optical component. © 2018 Walter de Gruyter GmbH, Berlin/Boston 2018.

引用

页码：53 / 58

页数：5

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