Fakidis, J.J.FakidisVidev, S.S.VidevHelmers, HenningHenningHelmersHaas, H.H.Haas2022-03-052022-03-052018https://publica.fraunhofer.de/handle/publica/25641410.1109/LPT.2018.2815273In 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/cm2 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.enMaterialien - Solarzellen und TechnologiePhotovoltaikIII-V und Konzentrator-PhotovoltaikIII-V Epitaxie und SolarzellenPower-by-LightharvestingarsenideOFDMcavity surface emitting lasers621535697journal article