李娟, 俞浩, 虞天成, 苟于单, 杨火木, 王俊. 用于无线能量传输的高效率半导体激光器设计[J]. 红外与激光工程, 2021, 50(5): 20210147. DOI: 10.3788/IRLA20210147
引用本文: 李娟, 俞浩, 虞天成, 苟于单, 杨火木, 王俊. 用于无线能量传输的高效率半导体激光器设计[J]. 红外与激光工程, 2021, 50(5): 20210147. DOI: 10.3788/IRLA20210147
Li Juan, Yu Hao, Yu Tiancheng, Gou Yudan, Yang Huomu, Wang Jun. Design of high efficiency diode laser module for wireless power transmission[J]. Infrared and Laser Engineering, 2021, 50(5): 20210147. DOI: 10.3788/IRLA20210147
Citation: Li Juan, Yu Hao, Yu Tiancheng, Gou Yudan, Yang Huomu, Wang Jun. Design of high efficiency diode laser module for wireless power transmission[J]. Infrared and Laser Engineering, 2021, 50(5): 20210147. DOI: 10.3788/IRLA20210147

用于无线能量传输的高效率半导体激光器设计

Design of high efficiency diode laser module for wireless power transmission

  • 摘要: 激光无线能量传输在无人机、卫星空间站和探月机器人供电等方面具有潜在应用前景,其系统效率成为了其应用的关键瓶颈。为了提高激光无线能量传输系统发射端激光器的电光转换效率、接收端光斑均匀性和有效窗口收光比,提出了用于激光无线能量传输发射端的高效率半导体激光器设计方案。基于合束效率较高的空间合束设计了一套高功率高效率半导体激光系统,接收端光斑不均匀度可优化至0.207,有效窗口内收光比大于94%。搭建了千瓦级激光无线能量传输实验装置,发射端半导体激光系统直接输出矩形光斑,与矩形光电池匹配,提高了电池阵布片率。利用多光束指向性可调节特点,优化了接收端光斑均匀度,有利于提高接收端电池的转换效率及简化电源管理。该设计与研究为激光无线能量传输的实际应用提供了借鉴意义。

     

    Abstract: Laser wireless power transmission in unmanned aerial vehicle, satellite station and lunar robot power supply has potential application prospect, whose efficiency becomes the key to the application bottleneck. In order to improve the electro-optic conversion efficiency of the transmitter, the spot uniformity and the effective power ratio in window at the receiver, a design scheme of high efficiency diode laser for the transmitter of laser wireless power transmission was proposed. A high power and high efficiency diode laser system was designed, which is based on space combination with high efficiency, what’s more, the unevenness of the intensity at the receiving end can be optimized to 0.207, and the power ratio in the effective window is more than 94%. A laser wireless power transmission experimental device was built, whose power is over kilowatt, and the rectangular spot was outputted directly by diode laser system, which is matched with rectangular photovoltaic cell, thus the battery array layout rate was improved. The feature of multi-beam modulation was used to improve uniformity of the intensity, which is beneficial to improve the optic–electro conversion efficiency of battery and simplify the power management at the receiving end. The design and research provide reference for the practical application of laser wireless power transmission.

     

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