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  • Received: Mar. 1, 2018

    Accepted: Jun. 13, 2018

    Posted: Jan. 17, 2019

    Published Online: Aug. 2, 2018

    The Author Email: Sung-Man Kim (sungman@ks.ac.kr)

    DOI: 10.3788/COL201816.080101

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    Sung-Man Kim, Jongmyeong Choi, Hyunwoo Jung. Experimental demonstration of underwater optical wireless power transfer using a laser diode[J]. Chinese Optics Letters, 2018, 16(8): 080101

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Chinese Optics Letters, Vol. 16, Issue 8, 080101 (2018)

Experimental demonstration of underwater optical wireless power transfer using a laser diode 

Sung-Man Kim*, Jongmyeong Choi, and Hyunwoo Jung

Author Affiliations

  • Department of Electronic Engineering, Kyungsung University, Nam-Gu, Busan 48434, Korea

Abstract

We experimentally demonstrate an underwater optical wireless power transfer (OWPT) using a laser diode (LD) as a power transmitter. We investigate the characteristics of a solar cell and a photodiode (PD) as a power receiver. We optimize the LD, the PD, and the solar cell to achieve the maximum transfer efficiency. The maximum transfer efficiency of the back-to-back OWPT is measured as 4.3% with the PD receiver. Subsequently, we demonstrate the OWPT in tap and sea water. Our result shows an attenuation of 3?dB/m in sea water.