High-power high-efficiency laser power transmission at 100 m using optimized multi-cell GaAs converter

Tao He, Su Hui Yang*, Miguel Ángel Muñoz, Hai Yang Zhang, Chang Ming Zhao, Yi Chen Zhang, Peng Xu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

38 Citations (Scopus)

Abstract

A high-power high-efficiency laser power transmission system at 100 m based on an optimized multi-cell GaAs converter capable of supplying 9.7 W 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 793 nm of wavelength and 24 W 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 8 W at room temperature. When the input laser power is 24 W (laser intensity of 60000 W/m2), the efficiency is 40.4% and the output voltage is 4 V. The overall efficiency from electricity to electricity is 11.6%.

Original languageEnglish
Article number104203
JournalChinese Physics Letters
Volume31
Issue number10
DOIs
Publication statusPublished - 1 Oct 2014

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