基于无衍射光束的高效远距离无线能量传输技术

High Efficient Long Distance Wireless Energy Transmission Technology Based on Non-diffracting Beamn

针对传统高斯光束具有随着传输距离增大,光斑直径不断变宽,到靶功率密度不断减少的缺点,而无法用于远距离无线能量传输的难题。对具有中心光斑直径小且传播距离远的无衍射光束进行了研究,通过相位调控技术产生近无衍射光的方法,设计了一种基于无衍射光束的激光传能光学系统,得到了在传输相同距离的情况下,无衍射光束相比高斯光束能够保持长距离不发散的结果。研究结果表明,该无衍射光学系统能够有效提高传输距离减少能量损失,提高到靶功率密度,进而降低接收端光电池的接收面积及系统的体积重量。

The traditional Gauss beam has the disadvantage of increasing the spot diameter and decreasing the power density- to the target with the increase of transmission distance, and can not be used for long-distance wireless energy transmission. In this paper, a small central spot diameter and far distance propagation of non-diffracting beams are studied, method of non-diffracting beams generated by phase control technology, the design of a laser energy transmission optical system based on non-diffracting beams, has been in the same distance, non-diffracting beams compared to Gauss beam can keep long distance non-divergence results. The research results show that the non diffracting optical system can effectively improve transmission distance, reduce energy loss, and increase target power density, thereby reducing the receiving area of photovoltaie ceils and the volume and weight of the system.