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

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

doi:10.29026/oes.2024.230051

Opto-Electronic Science (Jul 2024)

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

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

Affiliations

Yuxin Tian: Beijing National Research Center for Information Science and Technology (BNRist), Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
Boyu Dong: Key Laboratory of Information Science of Electromagnetic Waves (MoE), Department of Communication Science and Engineering, Fudan University, Shanghai 200433, China
Yaxuan Li: Key Laboratory of Information Science of Electromagnetic Waves (MoE), Department of Communication Science and Engineering, Fudan University, Shanghai 200433, China
Bing Xiong: Beijing National Research Center for Information Science and Technology (BNRist), Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
Junwen Zhang: Key Laboratory of Information Science of Electromagnetic Waves (MoE), Department of Communication Science and Engineering, Fudan University, Shanghai 200433, China
Changzheng Sun: Beijing National Research Center for Information Science and Technology (BNRist), Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
Zhibiao Hao: Beijing National Research Center for Information Science and Technology (BNRist), Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
Jian Wang: Beijing National Research Center for Information Science and Technology (BNRist), Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
Lai Wang: Beijing National Research Center for Information Science and Technology (BNRist), Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
Yanjun Han: Beijing National Research Center for Information Science and Technology (BNRist), Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
Hongtao Li: Beijing National Research Center for Information Science and Technology (BNRist), Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
Lin Gan: Beijing National Research Center for Information Science and Technology (BNRist), Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
Nan Chi: Key Laboratory of Information Science of Electromagnetic Waves (MoE), Department of Communication Science and Engineering, Fudan University, Shanghai 200433, China
Yi Luo: Beijing National Research Center for Information Science and Technology (BNRist), Department of Electronic Engineering, Tsinghua University, Beijing 100084, China

DOI: https://doi.org/10.29026/oes.2024.230051
Journal volume & issue: Vol. 3, no. 7
pp. 1 – 10

Abstract

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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 dB over a broadband of 140–220 GHz and a high saturated output power of −7.8 dBm (166 μW) 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.

Published in Opto-Electronic Science

ISSN: 2097-0382 (Print)
Publisher: Editorial Office of Opto-Electronic Journals, Institute of Optics and Electronics, CAS, China
Country of publisher: China
LCC subjects: Science: Physics: Optics. Light; Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics
Website: https://www.oejournal.org/oes

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