一种0.3THz二维光子晶体定向耦合器的设计

Design of 0.3 THz 2D photonic crystal directional coupler

设计了一种基于二维光子晶体的太赫兹定向耦合器,通过在2个平行的横向线缺陷中加入纵向线缺陷的方式,实现了良好的耦合结构,在太赫兹频段实现了较好的功率耦合特性。这种二维光子晶体带定向耦合器结构紧凑,可用于太赫兹系统中信号功率的检测与监控,具有良好的应用价值。

This paper designs a two-dimensional(2D) photonic crystal based Terahertz(THz) directional coupler. By introducing longitudinal line defect into two parallel transverse line defects in 2D photonic crystal, the ideal coupling configuration and good THz power coupling performance are realized. The proposed 2D photonic crystal directional coupler has compact structure and it can satisfy application requirements in signal detecting and monitoring in THz band.