New Configuration of Ring Resonator in Photonic Crystal Based on Self-Collimation  

作　　者：沈晓鹏 韩奎 袁芳 李海鹏 王子煜 钟琪 

机构地区：[1]Department of Physics, China University of Mining and Technology, Xuzhou 221116 [2]College of Applied Science and Technology, China University of Mining and Technology, Xuzhou 221116

出　　处：《Chinese Physics Letters》2008年第12期4288-4291,共4页中国物理快报（英文版）

基　　金：Supported by the Science Foundation of China University of Mining and Technology under Grant No 2007A031.

摘　　要：We propose a novel ring resonator configuration in a channelless photonic crystal. The proposed ring resonator utilizes the self-collimation effect and the bending and splitting mechanisms of line defects to route the propagation of light, instead of conventional indexed-guided waveguides or photonie crystal band gap waveguides. The finite- difference time-domain method （FDTD） is used to investigate the characteristics of the ring resonator. The new design exhibits an ON-OFF contrast with an extinction ratio of more than 12dB, and has an ultra-compact footprint of 3.3 × 3.3 μm^2 when it operates at the optical communication wavelength λ = 1.55 μm. The design presented may find applications in the areas including ultra-compact optical switch and wavelength filer in integrated optical circuits.We propose a novel ring resonator configuration in a channelless photonic crystal. The proposed ring resonator utilizes the self-collimation effect and the bending and splitting mechanisms of line defects to route the propagation of light, instead of conventional indexed-guided waveguides or photonie crystal band gap waveguides. The finite- difference time-domain method （FDTD） is used to investigate the characteristics of the ring resonator. The new design exhibits an ON-OFF contrast with an extinction ratio of more than 12dB, and has an ultra-compact footprint of 3.3 × 3.3 μm^2 when it operates at the optical communication wavelength λ = 1.55 μm. The design presented may find applications in the areas including ultra-compact optical switch and wavelength filer in integrated optical circuits.

关 键 词：field emission molybdenum dioxide enhancement factor 

分 类 号：O433[机械工程—光学工程]