{"title":"可见光通信中LED PN结面积对调制带宽影响的研究","authors":"Zheng Zhou, Liu Li-lin, Gang Wang","doi":"10.1109/ICEPT.2017.8046542","DOIUrl":null,"url":null,"abstract":"In recent years, many researchers take great interest on visible light communication (VLC), due to its rich spectrum resources, no electromagnetic interference, good confidentiality, etc. In the visible light communication system, the information is loaded into the LED, then the light is transmitted in the free space, and the detector receives the signal. As the result of the −3dB modulation bandwidth of power-type LED is only several MHz, which affects seriously the information capacity and transmission. Therefore, the enhancement of the modulation bandwidth of LED is major task for VLC. In this paper, based on our previous work, the LED chip with different PN junction area of 200µm×800µm, 300µm×900µm and 300µm×1200µm are designed and fabricated. By analyzing the photoelectric characteristics and modulation characteristics of the three groups of LED, the relationship between PN junction area and modulation bandwidth are showed. Then the influence factors and the enhancement method of modulation bandwidth of power-type LED are proposed.","PeriodicalId":386197,"journal":{"name":"2017 18th International Conference on Electronic Packaging Technology (ICEPT)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Study on the influence of LED PN junction area on modulation bandwidth in visible light communication\",\"authors\":\"Zheng Zhou, Liu Li-lin, Gang Wang\",\"doi\":\"10.1109/ICEPT.2017.8046542\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In recent years, many researchers take great interest on visible light communication (VLC), due to its rich spectrum resources, no electromagnetic interference, good confidentiality, etc. In the visible light communication system, the information is loaded into the LED, then the light is transmitted in the free space, and the detector receives the signal. As the result of the −3dB modulation bandwidth of power-type LED is only several MHz, which affects seriously the information capacity and transmission. Therefore, the enhancement of the modulation bandwidth of LED is major task for VLC. In this paper, based on our previous work, the LED chip with different PN junction area of 200µm×800µm, 300µm×900µm and 300µm×1200µm are designed and fabricated. By analyzing the photoelectric characteristics and modulation characteristics of the three groups of LED, the relationship between PN junction area and modulation bandwidth are showed. Then the influence factors and the enhancement method of modulation bandwidth of power-type LED are proposed.\",\"PeriodicalId\":386197,\"journal\":{\"name\":\"2017 18th International Conference on Electronic Packaging Technology (ICEPT)\",\"volume\":\"74 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2017-08-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2017 18th International Conference on Electronic Packaging Technology (ICEPT)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICEPT.2017.8046542\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2017 18th International Conference on Electronic Packaging Technology (ICEPT)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICEPT.2017.8046542","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Study on the influence of LED PN junction area on modulation bandwidth in visible light communication
In recent years, many researchers take great interest on visible light communication (VLC), due to its rich spectrum resources, no electromagnetic interference, good confidentiality, etc. In the visible light communication system, the information is loaded into the LED, then the light is transmitted in the free space, and the detector receives the signal. As the result of the −3dB modulation bandwidth of power-type LED is only several MHz, which affects seriously the information capacity and transmission. Therefore, the enhancement of the modulation bandwidth of LED is major task for VLC. In this paper, based on our previous work, the LED chip with different PN junction area of 200µm×800µm, 300µm×900µm and 300µm×1200µm are designed and fabricated. By analyzing the photoelectric characteristics and modulation characteristics of the three groups of LED, the relationship between PN junction area and modulation bandwidth are showed. Then the influence factors and the enhancement method of modulation bandwidth of power-type LED are proposed.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
