Mobile blue-light communication over a signal optical path using a time-division multiplexing scheme  

作　　者：Pengzhan Liu Linning Wang Jiayao Zhou Xinijie Mo Yingze Liang Jiahao Gou Ziqian Qi Ziping Cao Yongjin Wang 

机构地区：[1]GaN Optoelectronic Integration International Cooperation Joint Laboratory of Jiangsu Province,Nanjing University of Posts and Telecommunications,Nanjing 210003,China [2]Portland Institute,Nanjing University of Posts and Telecommunications,Nanjing 210023,China

出　　处：《Journal of Semiconductors》2025年第3期82-88,共7页半导体学报(英文版)

基　　金：jointly supported by the National Natural Science Foundation of China (U21A20495);Natural Science Foundation of Jiangsu Province (BG2024023);National Key Research and Development Program of China (2022YFE0112000);111 Project (D17018)。

摘　　要：Multiple quantum well(MQW) Ⅲ-nitride diodes that can simultaneously emit and detect light feature an overlapping region between their electroluminescence and responsivity spectra, which allows them to be simultaneously used as both a transmitter and a receiver in a wireless light communication system. Here, we demonstrate a mobile light communication system using a time-division multiplexing(TDM) scheme to achieve bidirectional data transmission via the same optical channel.Two identical blue MQW diodes are defined by software as a transmitter or a receiver. To address the light alignment issue, an image identification module integrated with a gimbal stabilizer is used to automatically detect the locations of moving targets;thus, underwater audio communication is realized via a mobile blue-light TDM communication mode. This approach not only uses a single link but also integrates mobile nodes in a practical network.

关 键 词：multiple quantum well diodes electroluminescence and responsivity spectra overlap mobile light communication system time-division multiplexing scheme 

分 类 号：TN929.1[电子电信—通信与信息系统]