A Gigabit VLC Receiver That Incorporates a Fluorescent Antenna and a SiPM
A Gigabit VLC Receiver That Incorporates a Fluorescent Antenna and a SiPM
复制标题
DOI：
10.1109/jlt.2021.3095398
复制
发表时间：
2022-08-15
影响因子：
4.7
通讯作者：
Collins, Steve
中科院分区：
文献类型：
--
作者：
Ali, Wajahat;Manousiadis, Pavlos P.;Collins, Steve
在这篇文章中，我们展示了一种用于可见光通信的新型光接收器，它结合了荧光天线和硅光电倍增管(SiPM)。荧光天线被配置为平板几何形状，以收集和吸收传入的光学数据信号，并将所产生的荧光波导到由SiPM检测到的边缘。该天线采用了五氟代荧光材料，选择这种材料是因为它的带宽高达245 MHz，光致发光量子产率高达90%，发射光谱与SiPM探测到的最有效波长相匹配。该接收器包括荧光天线和安森美半导体制造的J系列30020 SiPM，在30 cm数据链路中使用405nmGaN激光二极管发射器，在黑暗和低于500lux的环境白光下进行评估。由于受到薄膜中非本征散射的限制，该荧光天线成功地将环境光抑制了20倍。使用开关键控和判决反馈均衡，在500勒克斯的环境光下，最大数据速率为1.4Gbps。使用五茂铁天线和BG3过滤器，可以提供200倍的环境光抑制，并可以在低信号功率下将接收器的数据速率提高高达2倍。当在环境光下工作时，复合接收器只需要比在黑暗中工作时多2.5倍的信号功率，在1 Gbps时，功率损失降低到1.2倍。
In this paper we demonstrate a novel optical receiver for visible light communications that combines a fluorescent antenna and a silicon photomultiplier (SiPM). The fluorescent antenna is configured in a slab geometry to collect and absorb an incoming optical data signal, and to waveguide the resulting fluorescence to an edge where it is detected by the SiPM. The antenna incorporates the fluorophore, pentafluorene, selected for its very high bandwidth of 245 MHz, high photoluminescence quantum yield of 90%, and emission spectrum that matches the wavelengths most efficiently detected by the SiPM. The performance of a receiver, comprising the fluorescent antenna and a J-series 30020 SiPM manufactured by ON Semiconductor, was assessed in a 30 cm data link with a 405 nm GaN laser diode transmitter, both in the dark and under 500 lux of ambient white light. The fluorescent antenna successfully rejects ambient light by a factor of 20, limited by extrinsic scattering in the thin film. Using on-off-keying with decision feedback equalization, a maximum data rate of 1.4 Gbps was demonstrated in 500 lux of ambient light. Using the pentafluorene antenna plus a BG3 filter, provides a 200 fold suppression of ambient light, and can increase the data rate of the receiver at low signal powers by up to a factor of 2. When operating in ambient light the composite receiver requires only 2.5 times more signal power than when it operates in the dark, with this power penalty reducing to a factor of 1.2 at 1 Gbps.