Wide field-of-view fluorescent antenna for visible light communications beyond the etendue limit
Wide field-of-view fluorescent antenna for visible light communications beyond the etendue limit
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DOI：
10.1364/optica.3.000702
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发表时间：
2016-07-20
期刊：
影响因子：
10.4
通讯作者：
Samuel, Ifor D. W.
中科院分区：
文献类型：
--
作者：
Manousiadis, Pavlos P.;Rajbhandari, Sujan;Samuel, Ifor D. W.
可见光通信(VLC)是一个重要的新兴领域，旨在利用光通信来补充Wi-Fi。这将极大地增加可用带宽，从而满足对更高数据速率的需求。在这一愿景中，固态照明将在被调制以传输数据的同时提供照明。实现这一愿景的一个重要障碍是接收器，它需要廉价、灵敏、快速和具有大视场(FOV)。提高VLC接收器灵敏度的一种方法是增加接收器的光电探测器的面积，但这会使它们变得昂贵和缓慢。另一种方法是使用光学元件来集中光，但这些元件中的拉伸度守恒限制了它们的视场。在这篇文章中，我们展示了克服这些限制的新型天线，提供了具有大收集面积和大视场的快速接收器。我们的结果超过了张量的限制，使光收集能力提高了12倍，FOV半角为60度，数据速率增加了三倍。由光学学会出版。
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 photo-detector, but this makes them expensive and slow. An alternative approach is to use optical elements to concentrate light, but conservation of etendue 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 etendue, giving an enhancement of light collection by a factor of 12, with FoV semi-angle of 60 degrees, and we show a threefold increase in data rate. Published by The Optical Society.