Photonics Dictionary: L

The material that produces stimulated emission from within a laser oscillator. Laser gain media may vary from extended-length glass fibers to submicron-length semiconductor material.

The lowest excitation power level at which a laser's output is mainly the result of stimulated emission rather than spontaneous emission.

Laser active elements typically refers to the substances or materials within a laser system that play a critical role in the amplification of light through the process of stimulated emission. These...

Contains elements which produce lasing., e.g. gain medium, oscillator mirrors as well as housing.

The laser output refers to the generated and emitted light produced by a laser system. This output is characterized by several key properties that distinguish lasers from other light sources. These...

In a solid-state laser, the material (Nd:YAG, Nd:glass, ruby) in which lasing action takes place.

Laser surgery refers to a medical procedure in which a laser, or focused beam of light, is used as a precision tool to cut, vaporize, coagulate, or otherwise modify tissues for therapeutic or...

A laser that uses a substance in the liquid state, such as an organic dye, as the active lasing medium.