What are the three major components of typical laser?

Answer 1

The three major components of a typical laser are the gain medium, the pump source, and the optical cavity. The gain medium, which can be a solid, liquid, or gas, amplifies light through stimulated emission. The pump source provides the energy necessary to excite the atoms or molecules in the gain medium. Lastly, the optical cavity, often composed of mirrors, helps to reflect the light back and forth, allowing for further amplification before the coherent light is emitted as a laser beam.