Answer to Question #45676 in Optics for weleayezgi welechal

Question

State the three possible types of laser and their working principles.

Answer 1

Gas laser
Agas laser is a laser in which an electric current is discharged through a gas
to produce coherent light. The gas laser was the first continuous-light laser
and the first laser to operate on the principle of converting electrical energy
to a laser light output.

Chemical laser
Achemical laser is a laser that obtains its energy from a chemical reaction.
Chemical lasers can reach continuous wave output with power reaching to
megawatt levels. They are used in industry for cutting and drilling.

Solid-state laser
Asolid-state laser is a laser that uses a gain medium that is a solid, rather
than a liquid such as in dye lasers or a gas as in gas lasers.
Semiconductor-based lasers are also in the solid state, but are generally
considered as a separate class from solid-state lasers.