0.5-Gb/s OFDM-Based Laser Data and Power Transfer Using a GaAs Photovoltaic Cell

被引：51

作者：

Fakidis, John ^{[1
]}

Videv, Stefan ^{[1
]}

Helmers, Henning ^{[2
]}

Haas, Harald ^{[1
]}

机构：

[1] Univ Edinburgh, Sch Engn, Inst Digital Commun, Li Fi Res & Dev Ctr, Edinburgh EH9 3JL, Midlothian, Scotland

[2] Fraunhofer Inst Solar Energy Syst ISE, D-79110 Freiburg, Germany

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2018年 / 30卷 / 09期

基金：

英国工程与自然科学研究理事会;

关键词：

Energy harvesting; gallium arsenide; OFDM; photovoltaic cells; vertical cavity surface emitting lasers; VISIBLE-LIGHT COMMUNICATION; WIRELESS; RECEIVER;

D O I：

10.1109/LPT.2018.2815273

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this letter, we demonstrate for the first time the additional capability of high-speed data communication for single-junction photovoltaic (PV) cells. A record 3-dB bandwidth of 24.5 MHz is reported for a gallium arsenide (GaAs) PV cell. The PV cell is shown to achieve a power efficiency of at least 42% when irradiance of 0.46 W/cm(2) is received from 847-nm vertical-cavity surface-emitted laser. Optimized bit-and-power-loaded optical orthogonal frequency-division multiplexing (OFDM) is applied to use the communication bandwidth most efficiently. With this, a data rate of 0.5 Gb/s is achieved for a 2-m OFDM-based laser link. To the best of our knowledge, the reported data rates achieved with a GaAs PV cell as the detector are the highest for simultaneous optical wireless information and power transfer.

引用

页码：841 / 844

页数：4

共 14 条

[1]

[Anonymous], 2016, APPL PHYS LETT

[2] Indoor Optical Wireless Power Transfer to Small Cells at Nighttime [J].