提出了半径按比例依次增大的改进型并联微环阵列,研究了其滤波信道的切换和路由方法,实现了并联微环滤波信道的灵活切换和路由。利用传输矩阵法,分析了并联微环和改进型并联微环阵列的传输特性,并采用MATLAB对改进型三微环阵列滤波信道的路由方法进行了分析。结果表明,当相邻的两个微环满足相消干涉条件时,滤波信道关闭,对应波长的光不能通过;当两个相邻微环满足相长干涉条件时,滤波信道打开,对应波长的光可以通过。设计了由4个改进型微环阵列构成的2×2路由器。

In this study, we propose an improved parallel microring antenna array with increasingly wide rings, and we also study the switching and routing methods for the filter channels. Herein, we achieve flexible switching and routing of the filter channels of the parallel microrings. Further, the transmission characteristics of the parallel microring arrays with and without the proposed improvement are analyzed using the transfer matrix method. The routing method of the filter channel of the improved three-microring array is then numerically analyzed using MATLAB. The results denote that the filter channel is closed and the light with the corresponding wavelength cannot pass when two adjacent microrings satisfy the condition of destructive interference; however, when two adjacent microrings satisfy the condition of constructive interference, the filter channel is opened, and the light with the corresponding wavelength can pass. Finally, a 2×2 router is designed using four improved microring arrays.