1. High-Power High-Efficiency Laser Power Transmission at 100m Using Optimized Multi-Cell GaAs Converter
- Author
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Zhang Haiyang, Xu Peng, Miguel Ángel Muñoz, Zhao Changming, Zhang Yi-Chen, Yang Suhui, and He Tao
- Subjects
010302 applied physics ,Materials science ,business.industry ,Energía Eléctrica ,General Physics and Astronomy ,02 engineering and technology ,Transmission system ,021001 nanoscience & nanotechnology ,Laser ,7. Clean energy ,01 natural sciences ,law.invention ,Power (physics) ,Wavelength ,Transmission (telecommunications) ,law ,0103 physical sciences ,Optoelectronics ,Electrónica ,Laser power scaling ,Optica ,0210 nano-technology ,business ,Diode ,Voltage - 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%.
- Published
- 2014