Experimental research of laser wireless power transmission efficiency
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摘要: 为了提高激光无线能量传输系统的转换效率，基于单结GaAs光电池的工作原理，用调节照射光电池的激光参量的方法，从理论上对激光无线能量传输系统的有关部分进行了优化设计，并通过实验研究了激光波长、激光强度等因素对光电池能量转换效率的影响。结果表明，单结GaAs光电池对单色激光的光电转换效率远高于传统的单晶硅电池，最高转化效率可达61.2%。该结果对于激光无线能量传输技术的应用具有一定参考价值。Abstract: In order to improve the conversion efficiency of the laser wireless power transmission system, based on the working principle of single junction GaAs photovoltaic cell, by the method of adjusting the parameter of laser which irradiated the photovoltaic cell, an optimization scheme was designed to each part of the laser wireless power transmission system theoretically. The relation between the conversion efficiency with laser wavelength and incident intensity was measured experimentally and discussed theoretically. The results show that the conversion efficiency of GaAs photovoltaic cell is improved obviously compared with monocrystalline silicon photovoltaic cell for monochromatic laser. The maximum conversion efficiency reaches 61.2%. The conclusions have a certain reference value for the application of laser wireless power transmission.
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