The operating principle of a laser system involves the excitation of atoms in the active medium by an energy source, such as a lamp, electric discharge or other laser. This excitation produces a large number of atoms in the excited state, which, on returning to the rest state, emit coherent light through the process of stimulated emission. The light produced is reflected between mirrors in the optical cavity, amplified and emitted as a coherent beam.
The most important benefits of laser systems:
High accuracy: The light beams produced by laser systems are very precise and directed, making them useful in applications that require high precision, such as materials processing, medicine or display technology.
Speed: Laser systems can operate at high speeds, making them useful in applications that require fast processing, such as materials processing or telecommunications.
Flexibility: Laser systems can be tailored to produce beams of light with specific properties, such as wavelength, pulse or power, depending on their specific application. This flexibility makes them useful in a variety of fields, from medicine and scientific research to industrial production.

Ability to process a variety of materials: Laser systems can be used to process a variety of materials, including metals, glass, plastics and wood. This makes them useful in industrial production and other areas.
Safety: Laser systems can be used safely because the light beams are directed and can be precisely controlled. This makes them useful in medical applications such as laser surgery.

In general, laser systems offer high precision, high speed, high flexibility and the ability to process a variety of materials, making them useful in a wide range of fields, from medicine and scientific research to industrial manufacturing and telecommunications.