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Solar-blind deep ultraviolet light communication network.

Xinjie Mo, Yingze Liang, Linnin Wang

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    |September 23, 2025
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    Summary
    This summary is machine-generated.

    This study presents a solar-blind deep ultraviolet (DUV) communication network using LEDs and photomultiplier tubes. It achieves 2 Mbps bidirectional data transfer over 122m with a relay node for extended range and complex environments.

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    Area of Science:

    • Optoelectronics
    • Wireless Communication

    Background:

    • Deep ultraviolet (DUV) light communication offers advantages like invisibility and low noise.
    • Existing DUV systems require further development for practical applications.

    Purpose of the Study:

    • To propose and demonstrate a novel solar-blind DUV light communication network.
    • To enhance communication distance and reliability using a relay node.

    Main Methods:

    • Utilized 275 nm light-emitting diodes (LEDs) as optical transmitters.
    • Employed photomultiplier tubes as receivers.
    • Integrated transmitters and receivers for two-way communication under the universal asynchronous receiver/transmitter (UART) protocol.
    • Developed a relay communication node to extend range and handle complex environments.

    Main Results:

    • Achieved bidirectional data exchange at 2 Mbps.
    • Demonstrated a bit error rate (BER) below 0.1% over 122 m without a relay.
    • Validated the relay functionality in sunlight through field experiments.

    Conclusions:

    • The developed DUV communication network is feasible for advanced applications.
    • The relay node significantly enhances communication distance and adaptability.
    • This work paves the way for robust DUV communication systems.