4 Gbps wireless optical communications up to 5 m using a UV-C micro-light-emitting diode array

McKendry, Jonathan J. D.; Xie, Enyuan; Islim, Mohamed Sufyan; Sun, Xiaobin; Maclure, Daniel M.; Gu, Erdan; Haas, Harald; Dawson, Martin D.

doi:10.1109/ipc48725.2021.9593005

Cited by 7 publications

(5 citation statements)

References 4 publications

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“…UV OWC in the solar-blind region of the electromagnetic spectrum (UV-C band) can also take advantage of a naturally background-free environment. Previously we demonstrated 4 Gb/s at line-of-sight range up to 5 m using a single UV-C (280 nm)-emitting µLED [4]. Here we report further progress where systematic optimization of the optics, µLED biasing conditions, and data encoding scheme parameters has allowed us to reach distances up to 17 m using a UV-C µLED while maintaining error-free data rates greater than 4 Gb/s.…”

Section: Introductionmentioning

confidence: 70%

Gb/s Optical Wireless Communications up to 17 meters using a UV-C Micro-Light-Emitting Diode

Maclure

Xie

Herrnsdorf

et al. 2022

2022 IEEE Photonics Conference (IPC)

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Section: Introductionmentioning

confidence: 70%

Gb/s Optical Wireless Communications up to 17 meters using a UV-C Micro-Light-Emitting Diode

Maclure

Xie

Herrnsdorf

et al. 2022

2022 IEEE Photonics Conference (IPC)

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“…UVC micro-LED has higher modulation bandwidth than broad-area LEDs and further reducing the device size causes higher bandwidth. UVC micro-LED communication has achieved record data rate of 4 Gbps at a distance of 5 m [65]. WDM combining UVA, UVB, UVC and even visible light will further improve the data rate significantly [66,67].…”

Section: Statusmentioning

confidence: 99%

The micro-LED roadmap: status quo and prospects

Lin,

Wu,

Kuo

et al. 2023

J. Phys. Photonics

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Micro LED can play an important role in the future generation of smart displays. They are found very attractive in many applications, such as maskless lithography, biosensor, AR/MR etc., at the same time. A monitor that can fulfill saturated color rendering, high display resolution, and fast response time is highly desirable, and the micro LED-based technology could be our best chance to meet these requirements. At present, semiconductor-based RGB micro LED chips and color-conversion enhanced Micro LEDs are the major contenders for the full-color high resolution displays. Both of the methods need revolutionary ways to perfect the material qualities, fabricate the device, assemble the individual parts into a system. In this roadmap, we will highlight the current status and challenges of the micro LED-related issues, and discuss the possible advances in science and technology that can stand up to the challenges. The innovation in epitaxy, such as the tunnel junction, the direct epitaxy and nitride based quantum wells for red and ultraviolet, can provide critical solutions of the micro LED performance in various aspects. The quantum scale structure like nanowire or nanorod can be crucial for the scaling of the devices. Meanwhile, the color conversion method, which uses colloidal quantum dots as the active material, can provide a hassle-free way to assemble a large micro LED array, and emphasis on the full color demonstration via colloidal quantum dots. These quantum dots can be patterned by porous structure, inkjet or photo-sensitive resin. In addition to the micro LED devices, the peripheral components or technologies are equally important. Microchip transfer and repair, heterogeneous integration with the electronics and the novel 2D material cannot be ignored or the overall display module will be very power-consuming. The augmented reality is one of the potential customer for our micro-LED displays and the user experience so far is limited due to lack of the truly qualified display. Our analysis showed the micro LED is on the way to address and solve the current problems, such as high loss optical coupling and narrow field of view. All these efforts are channeled to achieve an efficient display with all ideal qualities that meet our most stringent viewing requirements and expect it to become an indispensable part of our daily life.

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“…With this UVC micro-LED, they obtained a data rate of 2 Gbps over 0.5 m link and 0.82 Gbps over 3 m link by using OFDM with pre-equalization. Very recently, further improvement has been made in the communication performance of UVC micro-LEDs to achieve a data rate of 4 Gbps at a distance of 5 m [70]. The Shannon-Hartley theorem states that the theoretical maximum data rate for a communications channel is a function of both the channel signal-to-noise ratio (SNR) and bandwidth.…”

Section: A Optical Communicationmentioning

confidence: 99%

“…9 summarizes work from these groups and others by plotting the achieved data rates against the demonstrated free-space transmission distance, using UVB and UVC micro-LEDs and standard off-the-shelf commercial LEDs. These demonstrations are all direct line-of-sight or, in the case of Sun et al, diffuse line-of-sight communications links [67,[69][70][71][72][73].…”

Section: A Optical Communicationmentioning

confidence: 99%

AlGaN Ultraviolet Micro-LEDs

Tian

Shan

Zhu

et al. 2022

IEEE J. Quantum Electron.

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AlGaN-based UV LEDs have proven to have broad applications in many fields including sterilization, disinfection, purification, and phototherapy, but the performance still needs to be further improved. Benefiting from advantages such as better current spreading, lower self-heating effect and higher light extraction efficiency achieved by the reduced LED size, UV micro-LEDs are expected to improve quantum efficiency and thus can expand more potential applications. In this article, performance enhancement techniques and applications of UV micro-LEDs will be reviewed, providing an outlook for further development of AlGaN-based UV-LEDs. The micro-LED format offers possibilities to address fundamental issues that UV LEDs confront in general, but also demonstrates specific characteristics and performance advantages opening up new areas of application including high-speed optical communication, time-resolved fluorescence lifetime measurement, optical pumping, direct writing and charge management.

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4 Gbps wireless optical communications up to 5 m using a UV-C micro-light-emitting diode array

Cited by 7 publications

References 4 publications

Gb/s Optical Wireless Communications up to 17 meters using a UV-C Micro-Light-Emitting Diode

Gb/s Optical Wireless Communications up to 17 meters using a UV-C Micro-Light-Emitting Diode

The micro-LED roadmap: status quo and prospects

AlGaN Ultraviolet Micro-LEDs

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