Hourglass nonlinear photonic crystal cavity for ultra-fast all-optical switching

作     者：Rebhi, Sana Najjar, Monia 

作者机构：Univ Tunis El Manor Natl Engn Sch Tunis Commun Syst LR 99 ES21 LR SysCom ENIT Tunis 1002 Tunisia Univ Tunis El Manor Higher Inst Comp Sci Ariana 2080 Tunisia 

出 版 物：《OPTIK》 (光学)

年 卷 期：2019年第180卷

页      面：858-865页

核心收录：

学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学] 

主　　题：All-optical switching Photonic crystal cavity Finite-difference time-domain method Optical Kerr effect 

摘      要：In this paper, a new design of an ultra fast all optical switch based on a new photonic crystal cavity combined with Kerr effect is proposed and its performance is studied. Numerical methods such as plane wave expansion (PWE) and finite difference time domain (FDTD) are used to perform simulations and study the optical properties of the proposed switch. Switching from ON to OFF status occurred when the resonant wavelength is shifted due to Kerr effect. The simulation results show that switch has a high-speed response of similar to 15 ps and since it has an ultra-small size of 273.24 mu m(2), it has a potential to be used in integrated optical-circuits.