10 Gbps wavelength division multiplexing using UV-A, UV-B and UV-C micro-LEDs

Daniel M. Maclure, Jonathan J. D. McKendry, Mohamed Sufyan Islim, Enyuan Xie, Cheng Chen, Xiaobin Sun, Xudong Liang, Xiaohui Huang, Hanaa Abumarshoud, Johannes Herrnsdorf, Erdan Gu, Harald Haas, Martin D. Dawson

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Abstract

Deep ultraviolet (DUV) optical wireless communications have seen increased interest in recent years due to the unique properties of light in this spectral region. However, the reported DUV data rates remain significantly lower than comparable demonstrations at visible wavelengths due to lower modulation bandwidths and/or output power of the sources. Here, we present a wavelength division multiplexing demonstration using three UV microlight-emitting diodes emitting at nominal peak wavelengths of 285, 317, and 375 nm, respectively, each with an emitting area of approximately 1369 μm 2 (equivalent to circular device pixels of diameter ∼40 μm). Using orthogonal frequency division multiplexing, data rates of 4.17, 3.02, and 3.13 Gbps were achieved from the 285, 317, and 375 nm devices, respectively, for a combined data rate of 10.32 Gbps transmitted over a distance of 0.5 m.

Original languageEnglish
Pages (from-to)516-523
Number of pages8
JournalPhotonics Research
Volume10
Issue number2
DOIs
Publication statusPublished - 1 Feb 2022

Keywords

  • ultraviolet communications
  • OFDM
  • QAM
  • WDM

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