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Towards a 100 Gb/s visible light wireless access network.

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    Laser diodes (LDs) offer a promising alternative to light-emitting diodes (LEDs) for high-speed optical wireless access. This study demonstrates that LDs can achieve over 100 Gb/s data rates under standard indoor lighting conditions.

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    Area of Science:

    • Optical Wireless Communication
    • Li-Fi Technology

    Background:

    • Light-emitting diodes (LEDs) demonstrate potential for visible light communication (VLC) exceeding 10 Gb/s.
    • LEDs exhibit a trade-off between optical efficiency and bandwidth, limiting performance.
    • Laser diodes (LDs) present a viable alternative for enhanced visible light spectrum utilization in communications.

    Purpose of the Study:

    • To investigate the communication capabilities of commercially available laser diodes (LDs).
    • To evaluate LD performance under various indoor illumination constraints.
    • To determine the feasibility of high data rates using LDs in optical wireless access.

    Main Methods:

    • Utilized off-the-shelf laser diodes (LDs) for optical wireless communication experiments.
    • Tested LD performance across multiple scenarios with controlled illumination levels.
    • Measured achieved data rates under standard indoor lighting conditions.

    Main Results:

    • Demonstrated that laser diodes (LDs) can achieve data rates exceeding 100 Gb/s.
    • Confirmed high-speed communication capabilities of LDs even with illumination constraints.
    • Showcased the potential for significantly higher data rates compared to LEDs.

    Conclusions:

    • Laser diodes (LDs) are a highly promising technology for future optical wireless access systems.
    • LDs enable data rates significantly higher than current LED-based VLC systems.
    • Achievable data rates of over 100 Gb/s are feasible at standard indoor illumination levels using LDs.