Photonics-assisted THz wireless communication enabled by wide-bandwidth packaged backilluminated modified uni-traveling-carrier photodiode  

作　　者：Yuxin Tian Boyu Dong Yaxuan Li Bing Xiong Junwen Zhang Changzheng Sun Zhibiao Hao Jian Wang Lai Wang Yanjun Han Hongtao Li Lin Gan Nan Chi Yi Luo 

机构地区：[1]Beijing National Research Center for Information Science and Technology(BNRist),Department of Electronic Engineering,Tsinghua University,Beijing 100084,China [2]Key Laboratory of Information Science of Electromagnetic Waves(MoE),Department of Communication Science and Engineering,Fudan University,Shanghai 200433,China [3]Flexible Intelligent Optoelectronic Device and Technology Center,Institute of Flexible Electronics Technology of THU,Jiaxing 314000,China

出　　处：《Opto-Electronic Science》2024年第7期20-29,共10页光电科学（英文）

基　　金：supported in part by National Key Research and Development Program of China(No.2022YFB2803002);National Natural Science Foundation of China(Nos.62235005,62127814,62225405,61975093,61927811,61991443,61925104 and 61974080);Collaborative Innovation Centre of Solid-State Lighting and Energy-Saving Electronics.

摘　　要：This paper presents a wide-bandwidth back-illuminated modified uni-traveling-carrier photodiode(MUTC-PD)packaged with standard WR-5 rectangular waveguide for high-speed wireless communications.With optimized epitaxy structure and coplanar waveguide electrodes,the fabricated 4-μm-diameter PD exhibits ultra-flat frequency response and high saturation power.Integrated passive circuits including low-loss bias-tee and E-plane probe are designed to package the PD into a compact module with waveguide output.The packaged PD module has demonstrated a flat frequency response with fluctuations within±2.75 d B over a broadband of 140–220 GHz and a high saturated output power of-7.8 d Bm(166μW)at 140 GHz.For wireless communication applications,the packaged PD is used to implement 1-m free space transmission at carrier frequencies of 150.5 and 210.5 GHz,with transmission rates of 75 and 90 Gbps,respectively.

关 键 词：modified uni-traveling-carrier photodiode integrated bias-tee E-plane probe flat frequency response high saturation power WR-5 output THz wireless communications 

分 类 号：TN31[电子电信—物理电子学] TN92