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Research at St Andrews

Optical antennas for wavelength division multiplexing in visible light communications beyond the étendue limit

Research output: Contribution to journalArticle


Open Access Status

  • Embargoed (until 20/12/20)


Pavlos Manousiadis, Hyunchae Chun, Sujan Rajbhandari, Dimali Vithanage, Rahmat Malyawan, Grahame Faulkner, Harald Haas, Dominic C. O'Brien, Steve Collins, Graham A. Turnbull, Ifor David William Samuel

School/Research organisations


This paper presents a novel fluorescent receiver for visible light communications that combines a broad field of view (FoV) with a significant gain, and simultaneously enables wavelength division multiplexing (WDM) for data communications. These characteristics are achieved by creating a receiver that includes a stack of two fluorescent optical antennas, each designed to receive a different part of the spectrum and create two separable communication channels. The device outperforms the theoretical étendue limit in terms of the combination of FoV and gain it can achieve. Furthermore, the demonstrated de‐multiplexing of blue and green spectral components enables the parallel streaming of data by WDM. Since these devices are inexpensive, simple, and compact, they can easily be integrated into portable electronic devices such as phones, tablets, and laptops.


Original languageEnglish
Article number1901139
JournalAdvanced Optical Materials
VolumeEarly View
Early online date20 Dec 2019
Publication statusE-pub ahead of print - 20 Dec 2019

    Research areas

  • Optical wireless communications, Fluorescent concentrator, Li-Fi, Field of view

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