The 1×4 Optical Splitters Based on Silicon Photonic Crystal Self-Collimation Ring Resonators  

作　　者：ZHUANG Dong-Xia CHEN Xi-Yao LI Jun-Jun QIANG Ze-Xuan JIANG Jun-Zhen CHEN Zhi-Yong QIU Yi-Shen LI Hui 庄冬霞;陈曦曜;李军军;强则煊;蒋俊贞;陈志勇;邱怡申;李晖(School of Physics and Optoelectronics Technology,Fujian Normal University,Fuzhou 350007;Department of Physics and Electronic Information Engineering,Minjiang University,Fuzhou 350108)

机构地区：[1]School of Physics and Optoelectronics Technology,Fujian Normal University,Fuzhou 350007 [2]Department of Physics and Electronic Information Engineering,Minjiang University,Fuzhou 350108

出　　处：《Chinese Physics Letters》2012年第12期74-77,共4页中国物理快报（英文版）

基　　金：Supported in part by the Program for New Century Excellent Talents in University under Grant No NCET040615;the Natural Science Foundation of Fujian Province under Grant No 2011J01017.

摘　　要：We report 1×4 optical splitters(OSs)with different splitting ratios based on either rod-type or hole-type silicon photonic crystal self-collimation ring resonators(SCRRs).The four beam splitters of the OSs are formed by changing the radii of silicon rods or air holes.The light beam propagating along the SCRR can be controlled by the self-collimation effect.The transmission spectra at the through and drop ports are investigated by using the finite-difference time-domain(FDTD)method.The simulated results agree well with the theoretical calculation.For 1550-nm dropping wavelength,the free spectral ranges for rod-type and hole-type configurations are 28.8 nm and 32.5 nm,respectively,which almost cover the whole optical communication C-band window.The dimensions of these structures are only about 10μm×10μm.

关 键 词：OPTICAL effect. CRYSTAL 

分 类 号：TN2[电子电信—物理电子学]