二维光子晶体滤波器的研究  

Research on Two-Dimensional Photonic Crystal Filter

作　　者：杨运兴 孙晶[1] 李支新 吴聪 张通[1] YANG Yunxing;SUN Jing;LI Zhixin;WU Cong;ZHANG Tong

机构地区：[1]吉首大学物理与机电工程学院,吉首416000

出　　处：《科技视界》2020年第4期186-189,共4页Science & Technology Vision

基　　金：吉首大学2019年度校级自然科学类科研项目(Jdy19043),主持人:杨运兴。

摘　　要：传统的滤波器体积大,滤波性能差,利用点缺陷微腔的选频功能以及落在光子晶体禁带频率范围之内的光信号禁止传播这一特性,设计了一款滤波性能高,尺寸只有13.215um×11.1um的光子晶体多信道滤波器,该滤波器由一个主波导、四个微腔、四个下载波导以及在末端镶嵌大半径硅柱作为反射异质结构成,在微腔介质柱半径可调范围之内,可以实现特定波长的高效输出,在未来光电方面的发展具有潜在利用价值。The traditional filter is large in size and poor in filtering performance.Using the frequency selection function of point defect microcavity and the forbidden propagation of optical signal falling within the forbidden band frequency range of photonic crystal,a high filtering performance photonic crystal multichannel filter with the size of only 13.215um×11.1um is designed.The filter consists of a main waveguide,four microcavities,four download waveguides and at the end As a reflection heterostructure,the embedded large radius silicon column can achieve high-efficiency output of specific wavelength within the adjustable radius of the microcavity dielectric column,which has potential value in the future development of optoelectronics.

关 键 词：反射异质结 微腔 光子晶体滤波器 下载波导 

分 类 号：G633.6[文化科学—教育学]