Fiber laser charging technology, because the optical fiber itself does not conduct electricity, there is no need to worry about being affected by lightning strikes or short circuits, and there will be no interference in high voltage and strong magnetic field environments. The only disadvantage of this system is that the laser pointer charging system is relatively bulky and needs to be installed in a RV. At present, Lockheed Martin stated that their goal is to reduce the charging system to only “2 suitcases” in size for special combatants to carry.
In addition to individual fixed-wing UAVs, in May 2013, the United States also conducted a laser charging test for 4-rotor UAVs in vertical take-off and landing conditions. This charging system, nicknamed “stealth tower”, can use a laser to charge the drone under any conditions. Under the condition that the ground-based charging system has sufficient energy, it can achieve uninterrupted flight of the drone. In addition to the United States, Russia also completed a laser recharge test in October 2016.
According to RIA Novosti News Agency, the Russian “Energy” rocket aerospace company successfully used the laser pointers charging system to charge mobile phones 1.5 kilometers away within one hour. The trials were carried out between two buildings, one of which was an energy company’s building on the outskirts of Moscow. In the test, the tester installed a laser charging device on the 6th floor of this building, and installed a light guide plate with a total length of 10 cm on the roof of another building 1.5 km away (the laser can be accurately measured). induction).