{"title":"High-Speed InGaP/AlGaAs Avalanche Photodiodes for LED-Based Visible Light Communication","authors":"Yifan Fan;Xiangyang Chen;Zhecheng Dai;Jingyi Wang;Daqi Shen;Wenyang Wang;Haiming Ji;Pengfei Tian;Baile Chen","doi":"10.1109/TED.2025.3559492","DOIUrl":null,"url":null,"abstract":"We report on the demonstration of an InGaP/AlGaAs heterojunction avalanche photodiode (APD) with an aluminum composition of 0.8, optimized for high-speed visible-light detection. The APD achieves a 3-dB bandwidth of 2.25 GHz at a multiplication gain of 72, corresponding to a gain-bandwidth product (GBP) of 162 GHz. It exhibits low dark current, low excess noise, and high multiplication gain, highlighting its suitability for high-performance optical applications. To showcase its potential, we integrated the APD into a visible-light communication system with a GaN micro-LED transmitter, achieving a data rate exceeding 1063 Mb/s. These findings highlight the promise of InGaP/AlGaAs APDs for advancing high-speed visible-light communication technologies.","PeriodicalId":13092,"journal":{"name":"IEEE Transactions on Electron Devices","volume":"72 6","pages":"3023-3028"},"PeriodicalIF":2.9000,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Transactions on Electron Devices","FirstCategoryId":"5","ListUrlMain":"https://ieeexplore.ieee.org/document/10970750/","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
We report on the demonstration of an InGaP/AlGaAs heterojunction avalanche photodiode (APD) with an aluminum composition of 0.8, optimized for high-speed visible-light detection. The APD achieves a 3-dB bandwidth of 2.25 GHz at a multiplication gain of 72, corresponding to a gain-bandwidth product (GBP) of 162 GHz. It exhibits low dark current, low excess noise, and high multiplication gain, highlighting its suitability for high-performance optical applications. To showcase its potential, we integrated the APD into a visible-light communication system with a GaN micro-LED transmitter, achieving a data rate exceeding 1063 Mb/s. These findings highlight the promise of InGaP/AlGaAs APDs for advancing high-speed visible-light communication technologies.
期刊介绍:
IEEE Transactions on Electron Devices publishes original and significant contributions relating to the theory, modeling, design, performance and reliability of electron and ion integrated circuit devices and interconnects, involving insulators, metals, organic materials, micro-plasmas, semiconductors, quantum-effect structures, vacuum devices, and emerging materials with applications in bioelectronics, biomedical electronics, computation, communications, displays, microelectromechanics, imaging, micro-actuators, nanoelectronics, optoelectronics, photovoltaics, power ICs and micro-sensors. Tutorial and review papers on these subjects are also published and occasional special issues appear to present a collection of papers which treat particular areas in more depth and breadth.