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

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Original languageEnglish
Title of host publication31st Annual Conference of the IEEE Photonics Society
Publication statusPublished - 17 Jul 2018
Event31st Annual Conference of the IEEE Photonics Society, IPC 2018 - Reston, United States
Duration: 30 Sep 20184 Oct 2018


Conference31st Annual Conference of the IEEE Photonics Society, IPC 2018
CountryUnited States


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/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.


31st Annual Conference of the IEEE Photonics Society, IPC 2018


Reston, United States

Event: Conference

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