Abstract-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 verticalcavity 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 OFDMbased 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.
In the context of simultaneous power and information transfer, the authors in REF report that a data rate of 0.5 Gb/s can be achieved with a gallium arsenide (GaAs) photovoltaic (PV) cell as a detector for simultaneous information and power transfer.
0.5-Gb/s OFDM-Based Laser Data and Power Transfer using a GaAs Photovoltaic Cell
2018 IEEE Photonics Conference (IPC)
2018 IEEE Photonics Conference (IPC)
Physics