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

Sung-Man Kim; Jongmyeong Choi; Hyunwoo Jung

doi:doi:10.3788/COL201816.080101

Chinese Optics Letters, 2018, 16 (8): 080101, Published Online: Aug. 2, 2018

Experimental demonstration of underwater optical wireless power transfer using a laser diode Download： 837次

Sung-Man Kim ^*Jongmyeong Choi Hyunwoo Jung

Author Affiliations

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

Figures & Tables

Fig. 1. Expected transfer efficiencies of wireless power charge technologies as a function of transfer distance.

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Fig. 2. Structure of OWPT.

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Fig. 3. (a) Block diagram and (b) photograph of the experimental setup for underwater OWPT. The transmitter is located at the left side in the block diagram, whereas it is at the right side in the photograph.

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Fig. 4. Optical output power and E/O conversion efficiency of the LD.

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Fig. 5. Voltage–current graph of the PD by changing the load resistance when the LD is operating at the most efficient condition.

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Fig. 6. Voltage–current graph of the solar cell by changing the load resistance when the LD is operating at the most efficient condition.

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Fig. 7. E/O conversion efficiency of the LD, O/E conversion efficiency of the PD, and the total back-to-back transfer efficiency as a function of LD optical power.

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Fig. 8. E/O conversion efficiency of the LD, O/E conversion efficiency of the solar cell, and the total back-to-back transfer efficiency as a function of LD optical power.

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Fig. 9. Transfer efficiencies of the underwater OWPT as a function of transfer distance. The dashed line is the analytic graph of the sea water with the attenuation parameter of 0.69 m−1.

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Fig. 10. Expected transfer efficiency of the seawater OWPT as a function of transfer distance by using the measured attenuation parameter.

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Table1. Parameter Values at the Maximum Transfer Efficiencies with the PD and the Solar Cell Receivers

	Type of Receiver
Parameter	PD	Solar Cell
LD output power	50 mW	130 mW
E/O efficiency of the LD ( $C_{E / O}$ )	41.0%	45.5%
O/E efficiency of the receiver ( $C_{O / E}$ )	10.4%	8.7%
Optimum load resistance of the receiver	$39 Ω$	$390 Ω$
Total transfer efficiency ( $E_{B to B}$ )	4.3%	4.0%

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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.

Experimental demonstration of underwater optical wireless power transfer using a laser diode Download： 837次

Fig. 1. Expected transfer efficiencies of wireless power charge technologies as a function of transfer distance.

Fig. 2. Structure of OWPT.

Fig. 3. (a) Block diagram and (b) photograph of the experimental setup for underwater OWPT. The transmitter is located at the left side in the block diagram, whereas it is at the right side in the photograph.

Fig. 4. Optical output power and E/O conversion efficiency of the LD.

Fig. 5. Voltage–current graph of the PD by changing the load resistance when the LD is operating at the most efficient condition.

Fig. 6. Voltage–current graph of the solar cell by changing the load resistance when the LD is operating at the most efficient condition.

Fig. 7. E/O conversion efficiency of the LD, O/E conversion efficiency of the PD, and the total back-to-back transfer efficiency as a function of LD optical power.

Fig. 8. E/O conversion efficiency of the LD, O/E conversion efficiency of the solar cell, and the total back-to-back transfer efficiency as a function of LD optical power.

Fig. 9. Transfer efficiencies of the underwater OWPT as a function of transfer distance. The dashed line is the analytic graph of the sea water with the attenuation parameter of 0.69 m−1.

Fig. 10. Expected transfer efficiency of the seawater OWPT as a function of transfer distance by using the measured attenuation parameter.

Table1. Parameter Values at the Maximum Transfer Efficiencies with the PD and the Solar Cell Receivers

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Experimental demonstration of underwater optical wireless power transfer using a laser diode Download： 837次

Fig. 1. Expected transfer efficiencies of wireless power charge technologies as a function of transfer distance.

Fig. 2. Structure of OWPT.

Fig. 3. (a) Block diagram and (b) photograph of the experimental setup for underwater OWPT. The transmitter is located at the left side in the block diagram, whereas it is at the right side in the photograph.

Fig. 4. Optical output power and E/O conversion efficiency of the LD.

Fig. 5. Voltage–current graph of the PD by changing the load resistance when the LD is operating at the most efficient condition.

Fig. 6. Voltage–current graph of the solar cell by changing the load resistance when the LD is operating at the most efficient condition.

Fig. 7. E/O conversion efficiency of the LD, O/E conversion efficiency of the PD, and the total back-to-back transfer efficiency as a function of LD optical power.

Fig. 8. E/O conversion efficiency of the LD, O/E conversion efficiency of the solar cell, and the total back-to-back transfer efficiency as a function of LD optical power.

Fig. 9. Transfer efficiencies of the underwater OWPT as a function of transfer distance. The dashed line is the analytic graph of the sea water with the attenuation parameter of 0.69 m−1.

Fig. 10. Expected transfer efficiency of the seawater OWPT as a function of transfer distance by using the measured attenuation parameter.

Table1. Parameter Values at the Maximum Transfer Efficiencies with the PD and the Solar Cell Receivers

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