Anti-drone Laser System is a new concept weapon that replaces conventional bullets to directly damage targets or make them ineffective by using Laser beam directed to fire to produce three effects, such as ablation, shock wave and radiation. It is especially suitable for attacking small and miniature UAVs, with the advantages of fast, flexible, accurate, antielectromagnetic interference, low cost and so on. It is a big killer for the common UAV with the nature of "low altitude, slow speed and small target". The laser weapon system can be deployed in different scenarios, such as airports, military camps, government departments and other key sectors, and even on warships and armored tanks to strike incoming precisionguided weapons.

At present, China and the United States are industry leaders. The power of China's anti drone laser weapons ranges from 3KW to 100KW, and there are a variety of different models to meet different needs.

In general, the anti-drone laser weapon system also includes detection radar. Moreover, except the laser weapon strike means, there are microwave strike weapons, electronic jamming and so on. Different strike means are available.

Directed energy weapons represented by anti-drone laser weapons have the following typical characteristics: (1) low cost: the launch cost of directed energy weapons is much lower than that of missiles and other weapons; (2) High energy density: the energy beam carries a high power (such as the power of the laser beam can be hundreds to thousands of kilowatts), and the cross section is small, which can obtain a very high energy density; (3) Difficulty in confrontation: because the energy beam has the characteristics of high speed and difficult to detect, it is difficult for the target to conduct early warning and maneuver against the attack; (4) Flexible use: This directed energy weapon does not need to calculate the trajectory, low noise, no recoil, easy to hide and adjust.

However, due to the limitations of volume, weight and power consumption, the laser antiUAV system is mainly based on the ground-based platform, and the development speed is slow. Modularity, solid state, miniaturization and the use of new materials are the direction of future improvement.

面对无人机成本降低、无人机集群大规模应用等新的痛点，以及电磁干扰不可靠、防空炮精度低、防空导弹弹药容量有限、性价比低等劣势，都需要加以弥补。首先，必须加大对激光、微波等新型概念武器的研发力度，激光和高功率微波武器将成为未来反无人机的常规手段；其次，作为保障最低需求的最可靠手段，防空导弹仍然是各国研发的重点，但降低防空导弹的成本迫在眉睫。即使是世界上军费开支最大的美国也意识到了这个问题，美国陆军已要求承包商限制其领先防空系统中防空弹药的研发和交付成本。第三，必须建立将硬要素和软要素与空域相结合的反击体系，形成由预警、电磁钟罩、防空硬杀伤、地面定向能和空中攻击无人机组成的“五合一”反击无人机拦截体系。