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  • Received: Nov. 18, 2019

    Accepted: Dec. 26, 2019

    Posted: Apr. 7, 2020

    Published Online: Apr. 10, 2020

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

    DOI: 10.3788/COL202018.042603

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    Sung-Man Kim, Hanbit Park. Optimization of optical wireless power transfer using near-infrared laser diodes[J]. Chinese Optics Letters, 2020, 18(4): 042603

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Chinese Optics Letters, Vol. 18, Issue 4, 042603 (2020)

Optimization of optical wireless power transfer using near-infrared laser diodes

Sung-Man Kim* and Hanbit Park

Author Affiliations

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

Abstract

We experimentally demonstrated optical wireless power transfer (OWPT) using a near-infrared laser diode (LD) as the optical power transmitter. We considered a photovoltaic (PV) cell and a photodiode (PD) as the optical power receivers. We investigated the characteristics of the LD, PD, and PV cell in order to determine the optimum operating condition from the viewpoint of transfer efficiency. We also experimentally demonstrated a whole system optimization process to maximize the DC-to-DC transfer efficiency of the OWPT. Our experimental results showed that the optimization process can improve the OWPT efficiency by up to 48%.

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