How does the laser weapon work and what is its principle?

Laser weapon is a weapon that uses high-energy laser to accurately shoot long-range targets or defend missiles, also known as tactical high-energy laser weapon (THEL). It has excellent properties such as rapidity, flexibility, accuracy and anti-electromagnetic interference, and can play a unique role in photoelectric countermeasures, air defense and strategic defense. The disadvantage of laser weapons is that they can't fight all the time and are limited by fog, heavy snow and heavy rain. Laser emission system is a precision optical system, which is also seriously influenced by the atmosphere, such as energy absorption by the atmosphere, energy attenuation caused by atmospheric disturbance, thermal halo effect, turbulence and attenuation caused by beam jitter, etc.

Because laser weapons need a lot of electric energy, it is difficult to realize large-scale application until the problem of energy storage equipment (such as high-energy batteries) is solved.