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Optical Wireless Power Transmission Using a GaInP Power Converter Cell under High-Power 635 nm Laser Irradiation of 53.5 W/cm 2

Author

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  • Yiu Leung Wong

    (Department of Advanced Materials Science and Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino 275-0016, Japan)

  • Shunsuke Shibui

    (Department of Advanced Materials Science and Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino 275-0016, Japan)

  • Masahiro Koga

    (Department of Advanced Materials Science and Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino 275-0016, Japan)

  • Shunki Hayashi

    (Department of Advanced Materials Science and Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino 275-0016, Japan)

  • Shiro Uchida

    (Department of Advanced Materials Science and Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino 275-0016, Japan)

Abstract

Optical wireless power transmission (OWPT) system is a technology that supplies energy from remote locations, having some features such as long-distance transmission, high directivity, and no electromagnetic noise interference. This study investigated the optical transmission efficiency and photoelectric conversion efficiency with a transmission distance of 10 m using GaInP power converter cells with a small area of 2.40 × 2.40 mm 2 and a 635 nm high-power laser over 50 W/cm 2 . As a result, we achieved a photoelectric conversion efficiency of 44.7% under 6.7 W/cm 2 (0.14 W) and 37.2% under 53.5 W/cm 2 (1.1 W) irradiation. These results suggested that W-class optical wireless power transmission could be realized by expanding the converter cell area. Additionally, it was found that the reductions of the divergence angle of the laser and the heat generation of the power converter cell were critical issues for further lengthening the distance and increasing the power.

Suggested Citation

  • Yiu Leung Wong & Shunsuke Shibui & Masahiro Koga & Shunki Hayashi & Shiro Uchida, 2022. "Optical Wireless Power Transmission Using a GaInP Power Converter Cell under High-Power 635 nm Laser Irradiation of 53.5 W/cm 2," Energies, MDPI, vol. 15(10), pages 1-8, May.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:10:p:3690-:d:818184
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    References listed on IDEAS

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    1. Simon Fafard & Denis Masson & Jan-Gustav Werthen & James Liu & Ta-Chung Wu & Christian Hundsberger & Markus Schwarzfischer & Gunther Steinle & Christian Gaertner & Claudio Piemonte & Bernd Luecke & Jo, 2021. "Power and Spectral Range Characteristics for Optical Power Converters," Energies, MDPI, vol. 14(15), pages 1-14, July.
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