基于微环的响应可切换微波光子滤波器  

Microring-Based Response-Switchable Microwave Photonic Filter

作　　者：孙良辰 李金野 贾倩倩 于文琦 戴双兴 赵奕儒 彭寄望 李明轩 刘建国[1,3] Sun Liangchen;Li Jinye;Jia Qianqian;Yu Wenqi;Dai Shuangxing;Zhao Yiru;Peng Jiwang;Li Mingxuan;Liu Jianguo(State Key Laboratory on Integrated Optoelectronics,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China;College of Electronic,Electrical and Communication Engineering,University of Chinese Academy of Sciences,Beijing 100049,China;College of Materials Science and OptoElectronic Technology,University of Chinese Academy of Sciences,Beijing 100049,China;Optical Communication Research and Development Center,54th Research Institute of China Electronics Technology Group Corporation,Shijiazhuang 050081,Hebei,China)

机构地区：[1]中国科学院半导体研究所集成光电子学国家重点实验室,北京100083 [2]中国科学院大学电子电气与通信工程学院,北京100049 [3]中国科学院大学材料科学与光电技术学院,北京100049 [4]中国电子科技集团公司第五十四研究所光通信研发中心,河北石家庄050081

出　　处：《激光与光电子学进展》2023年第9期275-282,共8页Laser & Optoelectronics Progress

基　　金：国家自然科学基金(61727815);国家重点研发计划(2019YFB2203700、2018YFB2200504)。

摘　　要：基于微环谐振腔和光纤布拉格光栅,利用相位-强度调制,实现了三种滤波响应可切换微波光子滤波器。通过改变光纤布拉格光栅反射谱、微环谐振腔陷波和光载波三者之间的相对波长,微波光子滤波器的滤波响应可以在带通、平顶带通和高通之间切换。制备了欧拉微环并搭建了微波光子滤波器系统,实现了上述三种响应。三种响应的带宽均具有一定的调谐能力,其调谐范围分别为5.56~7.68 GHz、6.23~11.92 GHz和5.83~10.86 GHz。三种响应下微环的插入损耗均小于10 dB。可切换的滤波响应使该微波光子滤波器具有更高的灵活性,在频率测量、杂散抑制等场景中具有广阔的应用空间。A threefilterresponse switchable microwave photonic filters(MPF)based on microring resonator(MRR)and fiber Bragg grating(FBG),using phaseintensity modulation,is proposed and experimentally demonstrated.By tuning the relative wavelengths of FBG reflectance spectrum,MRR notch,and optical carrier,the filter response of MPF can be switched between bandpass,flattop bandpass,and highpass.The bandpass,flattop bandpass,and highpass responses have bandwidth tuning ranges of 5.56-7.68 GHz,6.23-11.92 GHz,and 5.83-10.86 GHz,respectively.Insertion loss of MRR under three responses is less than 10 dB.The switchable responses enable the proposed MPF to maintain higher flexibility,with a broad application such as frequency measurement and spurious suppression scenarios.

关 键 词：集成光学 微波光子滤波器 微环谐振腔 光纤布拉格光栅 响应可切换 

分 类 号：E963[军事—军事通信学]