硅基光子集成宽带大色散延时芯片(特邀)  

Wideband large dispersion group delay chip based on silicon photonics integration(Invited)

作　　者：陈宏伟[1,2] 杜振民 符庭钊 杨四刚 陈明华[1,2] Chen Hongwei;Du Zhenmin;Fu Tingzhao;Yang Sigang;Chen Minghua(Department of Electronic Engineering,Tsinghua University,Beijing 100084,China;Beijing National Research Center for Information Science and Technology,Beijing 100084,China)

机构地区：[1]清华大学电子工程系,北京100084 [2]北京信息科学与技术国家研究中心,北京100084

出　　处：《红外与激光工程》2021年第7期12-16,共5页Infrared and Laser Engineering

基　　金：国家重点研发计划(2019YFB1803500);国家自然科学基金(61171284)。

摘　　要：集成、宽带、大色散延时的器件在微波光子滤波、真延时相控阵天线等领域有着重要的应用,可以有效地降低系统尺寸和功耗。文中提出并实现了一种基于硅基光子集成的宽带大色散延时芯片,通过采用超低损耗波导结构和侧壁法向量调制结构实现了片上集成大色散波导光栅,色散值超过250 ps/nm,最大群延时达到2 440 ps,带宽大于9.4 nm,该芯片有望用于微波光子学、高速光纤通信系统等领域。Content integrated,broadband,large group delay devices have important applications in microwave photonic filtering,true delay phased array antenna and other fields,which can effectively reduce the system size and power consumption.In this paper,a broadband large dispersion delay chip based on silicon-based photonic integration was proposed and implemented.By using ultra-low loss waveguide structure and side wall normal vector modulation structure,on-chip integration of large dispersion waveguide grating was realized.The dispersion was about 250 ps/nm,maximum group delay was 2440 ps and the bandwidth was more than 9.4 nm.The chip is expected to be used in microwave photonics,high-speed fiber communication system and other fields.

关 键 词：集成光子学 啁啾布拉格光栅 色散补偿 

分 类 号：O436[机械工程—光学工程]