Citation
He, Tao and Yang, Su-Hui and Muñoz García, Miguel Angel and Zhang, Hai-Yang and Zhao, Chang-Ming and Zhang, Yi-Chen and Xu, Peng
(2014).
High-Power High-Efficiency Laser Power Transmission at 100m Using Optimized Multi-Cell GaAs Converter.
"Chinese Physics Letters", v. 31
(n. 10);
pp. 1042031-1042035.
ISSN 0256-307X.
https://doi.org/10.1088/0256-307X/31/10/104203.
Abstract
A high-power high-efficiency laser power transmission system at 100m based on an optimized multi-cell GaAs
converter capable of supplying 9.7W of electricity is demonstrated. An I-V testing system integrated with a
data acquisition circuit and an analysis software is designed to measure the efficiency and the I-V characteristics of the laser power converter (LPC). The dependencies of the converter’s efficiency with respect to wavelength, laser intensity and temperature are analyzed. A diode laser with 793nm of wavelength and 24W of power is
used to test the LPC and the software. The maximum efficiency of the LPC is 48.4% at an input laser power of
8W at room temperature. When the input laser power is 24W (laser intensity of 60000W/m2), the efficiency is
40.4% and the output voltage is 4 V. The overall efficiency from electricity to electricity is 11.6%.
