Eye and skin-safe 150 Mbps Optical Wireless Communications over 1 m using UVC LEDs

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McKendry, Jonathan and Zimi, Hichem and Shao, Yingjie and Rajbhandari, Sujan and Herrnsdorf, Johannes and Dawson, Martin (2025) Eye and skin-safe 150 Mbps Optical Wireless Communications over 1 m using UVC LEDs. IEEE Photonics Technology Letters, 37 (24). pp. 1451-1454. ISSN 1041-1135 (https://doi.org/10.1109/LPT.2025.3571619)

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Abstract

We demonstrate an eye and skin-safe optical wireless communication link, at a transmission distance of 1 m, using ultraviolet-C (UVC) light-emitting diodes (LEDs) emitting at 235 and 255 nm, with error-free data rates up to 150 Mbps. Irradiance levels at the receiver were maintained within eye and skin-safe exposure limits. Operating at these short wavelengths confers an improvement in received peak signal-to-noise ratio (SNR) compared to previous demonstrations around 270-280 nm, thanks to the higher permitted exposure limits at shorter UVC wavelengths.

ORCID iDs

McKendry, Jonathan ORCID logoORCID: https://orcid.org/0000-0002-6379-3955, Zimi, Hichem ORCID logoORCID: https://orcid.org/0009-0009-7875-8034, Shao, Yingjie, Rajbhandari, Sujan ORCID logoORCID: https://orcid.org/0000-0001-8742-118X, Herrnsdorf, Johannes ORCID logoORCID: https://orcid.org/0000-0002-3856-5782 and Dawson, Martin ORCID logoORCID: https://orcid.org/0000-0002-6639-2989;
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