Characteristics of 45° photonic crystal ring resonators based on square-lattice silicon rods  

作　　者：白继博 王君琴 陈曦矅 蒋俊贞 李晖 邱怡申 强则煊 

机构地区：[1]School of Physics and Optoelectronics Technology,Fujian Normal University [2]College of Chemistry and Material Science,Fujian Normal University [3]Department of Physics and Electronic Information Engineering,Minjiang University

出　　处：《Optoelectronics Letters》2010年第3期203-206,共4页光电子快报（英文版）

基　　金：supported by the Natural Science Foundation of Fujian Province of China (Nos. F0950055 and A0910028);the Research Program of Science and Technology of Fujian Education Office of China (No. JB09049)

摘　　要：A new photonic crystal ring resonator(PCRR) configuration is provided based on two-dimensional(2D) square lattice photonic crystal(PC) silicon rods.The ring is formed by removing the line defect along ΓM direction instead of conventional ΓX direction.Its spectral information including transmission intensity,dropped efficiency and quality factor affected by different physical parameters and the cascaded engineering including parallel and serial configurations are numerically analyzed with 2D finite-difference time-domain(FDTD) technique.The spectral quality factor of more than 830 and dropped efficiency of 90% at 1550 nm channel can be obtained with a less than 2.2 μm ring radius.A new photonic crystal ring resonator（PCRR） configuration is provided based on two-dimensional（2D） square lattice photonic crystal（PC） silicon rods.The ring is formed by removing the line defect along ΓM direction instead of conventional ΓX direction.Its spectral information including transmission intensity,dropped efficiency and quality factor affected by different physical parameters and the cascaded engineering including parallel and serial configurations are numerically analyzed with 2D finite-difference time-domain（FDTD） technique.The spectral quality factor of more than 830 and dropped efficiency of 90% at 1550 nm channel can be obtained with a less than 2.2 μm ring radius.

关 键 词：光子晶体 正方晶格 谐振特性 基础 有限差分时域 硅 光谱质量 FDTD法 

分 类 号：O734[理学—晶体学]