基于垂直結構GaN LED的水下藍光通信系統(tǒng)
doi: 10.11999/JEIT220328
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南京郵電大學通信與信息工程學院 南京 210003
基金項目: 國家自然科學基金(61827804, 62005130),江蘇省自然科學基金(BK20200755),“111”項目(D17018)
Underwater Blue Light Communication UsingVertical-structure GaN Light Emitting Diode
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College of Telecommunications and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
Funds: The National Natural Science Foundation of China (61827804, 62005130), The Natural Science Foundation of Jiangsu Province (BK20200755), The “111” Project (D17018)
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摘要: 垂直結構GaN LED能夠提高器件的出光效率和調制帶寬,是可見光通信的關鍵器件。該文面向水下藍光通信的重大應用需求,基于亞波長理想LED模型,設計、制備了垂直結構藍光LED器件,在NRZ-OOK調制下可實現10 Mbps的無線光通信。該文進一步搭建了水下可見光通信系統(tǒng),采用基于該器件,實現了調制速率2 Mbps的全雙工水下藍光通信。Abstract: Ultrathin vertical-structure GaN Light Emitting Diode (LED) that can enhance light extraction efficiency as well as modulation bandwidth is a key optical element for visible light communication. In order to meet the requirement of underwater blue light communication, vertical-structure blue LED is designed and fabricated according to subwavelength vertical structure LED model. The fabricated vertical-structure LED can achieve a transmission rate of 10 Mbps under the NRZ-OOK modulation scheme. Furthermore,this vertical-structure LED is used to establish an underwater blue light communication system, which can achieve a full-duplex data communication with a modulation rate of 2 Mbps.
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