InGaN Micro-LED Array Enabled Advanced Underwater Wireless Optical Communication and Underwater Charging
InGaN Micro-LED Array Enabled Advanced Underwater Wireless Optical Communication and Underwater Charging
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DOI：
10.1002/adom.202002211
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发表时间：
2021-04-12
影响因子：
9
通讯作者：
Tian, Pengfei
中科院分区：
文献类型：
--
作者：
Lin, Runze;Liu, Xiaoyan;Tian, Pengfei
介绍了微型发光二极管在水下发光、光学探测和太阳能电池等方面的应用。基于高带宽、低功耗的微型LED阵列，实现了双工水下无线光通信和水下充电。采用非归零开关键控调制方案，在2.3 m双工UWOC系统中，微发光二极管发射机的最大调制带宽和数据速率分别为251.3 MHz和660 Mbps。此外，基于微型LED的光电探测器可以在相同的UWOC系统中分别在0和-5 V下实现52.5和60 Mbps的最大数据速率。此外，在实现通信功能的同时，利用微发光二极管实现了对外界光能的采集，并成功驱动了660 nm激光二极管，证明了微发光二极管的光伏发电能力。该实验在基于InGaN微发光二极管阵列的双工UWOC系统方面取得了突破性进展，验证了微发光二极管在双工UWOC和水下充电领域的巨大应用潜力。
In this paper, the underwater applications of micro-LED (light-emitting diode) in light emission, optical detection, and solar cell are demonstrated. Based on a high-bandwidth and low-power micro-LED array, duplex underwater wireless optical communication (UWOC) and underwater charging are realized. Using the non-return-to-zero on-off-keying modulation scheme, the maximum modulation bandwidth and data rate of a micro-LED transmitter in the 2.3 m duplex UWOC system are 251.3 MHz and 660 Mbps, respectively. In addition, the micro-LED-based photodetector can achieve maximum data rates of 52.5 and 60 Mbps at 0 and -5 V in the same UWOC system, respectively. Furthermore, while achieving the communication function, the micro-LED is used to realize the collection of external light energy, which is successfully employed to drive a 660 nm laser diode, proving the photovoltaic power generation of micro-LED. This experiment has made a breakthrough in the duplex UWOC system based on an InGaN micro-LED array, and verifies significant potential of micro-LED application in the field of duplex UWOC and underwater charging.