Wide field-of-view fluorescent antenna for visible light communications beyond the étendue limit
Research output: Contribution to journal › Article › peer-review
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DOI
Visible light communications (VLC) is an important emerging field aiming to use optical communications to supplement Wi-Fi. This will greatly increase the available bandwidth so that demands for ever-higher data rates can be met. In this vision, solid-state lighting will provide illumination while being modulated to transmit data. An important obstacle to realizing this vision are receivers, which need to be inexpensive, sensitive, fast, and have a large field of view (FoV). One approach to increasing the sensitivity of a VLC receiver is to increase the area of the receiver’s photodetector, but this makes them expensive and slow. An alternative approach is to use optical elements to concentrate light, but conservation of étendue in these elements limits their FoV. In this paper, we demonstrate novel antennas that overcome these limitations, giving fast receivers with large collection areas and large FoV. Our results exceed the limit of étendue, giving an enhancement of light collection by a factor of 12, with FoV semi-angle of 60°, and we show a threefold increase in data rate.
Original language | English |
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Pages (from-to) | 702-706 |
Number of pages | 5 |
Journal | Optica |
Volume | 3 |
Issue number | 7 |
DOIs | |
Publication status | Published - 20 Jul 2016 |
Externally published | Yes |