0.5-Gb/s OFDM-based laser data and power transfer using a GaAs photovoltaic cell

John Fakidis; Stefan Videv; Henning Helmers; Harald Haas

doi:10.1109/LPT.2018.2815273

0.5-Gb/s OFDM-based laser data and power transfer using a GaAs photovoltaic cell

John Fakidis, Stefan Videv, Henning Helmers, Harald Haas

Electronic And Electrical Engineering

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

2 Downloads (Pure)

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/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.

Original language	English
Pages (from-to)	841-844
Number of pages	4
Journal	IEEE Photonics Technology Letters
Volume	30
Issue number	9
Early online date	12 Mar 2018
DOIs	https://doi.org/10.1109/LPT.2018.2815273
Publication status	Published - 1 May 2018

Keywords

energy harvesting
gallium arsenide
OFDM
photovoltaic cells
vertical cavity surface emitting lasers

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Fakidis-etal-IEEE-PTL-2018-laser-data-and-power-transfer-using-a-GaAs-photovoltaic-cellAccepted author manuscript, 341 KB

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title = "0.5-Gb/s OFDM-based laser data and power transfer using a GaAs photovoltaic cell",

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/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.",

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AU - Fakidis, John

AU - Videv, Stefan

AU - Helmers, Henning

AU - Haas, Harald

PY - 2018/5/1

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N2 - 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.

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