A novel proposal for ultra-fast all optical half subtractor based on nonlinear ring resonators

被引：0
作者：
Niloofar Khajeheian
Jasem Jamali
Mohammadhossein Fatehi-Dindarlou
Mehdi Taghizadeh
机构：
[1] Islamic Azad University,Department of Electrical Engineering, Kazerun Branch
来源：
Optical and Quantum Electronics | 2021年 / 53卷
关键词：
Photonic crystals; Nonlinear ring resonators; Half subtracor; Kerr effect;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Optical half subtractors are required for designing any optical computation system. Operation speed and the on/off contrast ratios are very important characteristics for any optical logic device. A novel structure composed of three nonlinear ring resonators and some optical waveguides are used for designing for the proposed half subtractor with improved operation speed and on/off contrast ratio. The simulation results show that the rise time for this structure is 1.5 ps. Also the on/off contrast ratios for B and D are 13.7 dB and 14.5 dB respectively.
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