580-nm-thick vertical-structure light-emitting diode for visible light communication

Xie, Mingyuan; Hu, Fangchen; Ma, Chicheng; Jiang, Yan; Shi, Zheng; Gao, Xumin; Jia, Bolun; Yuan, Jialei; Zhu, Hongbo; Chi, Nan; Wang, Yongjin

doi:10.1063/5.0088846

Cited by 6 publications

(1 citation statement)

References 33 publications

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“…Visible light communication (VLC) is seen as an essential technology in the 6G era which has expanded its applications from indoor to outdoor scenarios [1][2]. Underwater optical wireless communication (UOWC) emerging as a novel technology of VLC technologies to provide high-speed and safe information exchange services in underwater scenarios [3].…”

Section: Introductionmentioning

confidence: 99%

Underwater optical wireless communication using a green laser

Qi,

Liang,

Wang

et al. 2024

Sixth Conference on Frontiers in Optical Imaging and Technology: Novel Technologies in Optical Systems

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Visible light communication (VLC) emerging as an essential technology in the 6G era has expanded its application from indoor to outdoor scenarios. Underwater optical wireless communication (UOWC) technology is presented aiming to provide high-speed and safe communication service for complex underwater scenarios. The blue-green band exists as a transmission window in seawater with less transmission loss than other visible light counterparts. In this paper, a self-designed full-duplex UOWC transceiver is demonstrated. A green laser and an avalanche photodiode (APD) are used as core devices of the transmitter and receiver, respectively. We use a field programmable gate array (FPGA) as the main processing unit where an on-off-key (OOK) modem and reed-solomon (RS) coder are adopted which can correct up to 8-bit errors at a correction efficiency of 94%. A bias-tee module is used as the emitting driver of the modulated signals for the green laser diode (LD) and a receiving circuit is self-designed realizing photoelectric conversion and signal processing, in which the transceiver could simultaneously emit and receive light. We conducted an experiment using a water flume to simulate underwater communication channels and realize full-duplex communication. The transmission rate of the transceiver is 5 Mbps. The photoelectric properties of the LD are characterized in this paper. Eye patterns and flowing signals are analyzed for the communication performance of the transceiver. This work provides a feasible method for advanced UOWC technology.

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Section: Introductionmentioning

confidence: 99%

Underwater optical wireless communication using a green laser

Qi,

Liang,

Wang

et al. 2024

Sixth Conference on Frontiers in Optical Imaging and Technology: Novel Technologies in Optical Systems

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Nano-LED driven phase change evolution of layered chalcogenides for Raman spectroscopy investigations

Mikulics

Adam²,

Sobolewski³

et al. 2022

FlatChem

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Deep-ultraviolet light communication in sunlight using 275-nm LEDs

Qi,

Wang,

Liang

et al. 2023

Applied Physics Letters

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Emerging deep-ultraviolet (DUV) light communication with attractive features fulfills the increasing demand for novel wireless communication without electromagnetic interference or solar noise influence. Here, we propose, manufacture, and characterize a solar-blind full-duplex light communication system using 275-nm DUV light-emitting diodes (LEDs). Four DUV LEDs connected in series form a unit, and the transmitter consists of an array of three independent units, which can be synchronously controlled using a main processing unit to modulate the emitted light. A solar-blind filter is inserted in front of the receiver due to the lack of an ultraviolet photodetector. Both the transmitter and receiver are encapsulated together to manufacture a full-duplex DUV light communication system, which can independently transmit and receive data with a maximal communication distance of 7 m at the same time. All users within a 46 m2 area of the system have access to the DUV communication network through an integrated wireless module. Real-time video is demonstrated and different types of files could be shared. Based on Transmission Control Protocol/Internet Protocol (TCP/IP), the system is finally performed in sunlight with a transmission rate of 10 Mbps and a packet loss rate of 1.28%.

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580-nm-thick vertical-structure light-emitting diode for visible light communication

Cited by 6 publications

References 33 publications

Underwater optical wireless communication using a green laser

Underwater optical wireless communication using a green laser

Nano-LED driven phase change evolution of layered chalcogenides for Raman spectroscopy investigations

Deep-ultraviolet light communication in sunlight using 275-nm LEDs

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