Article | REF: E4020 V2

Lasers sources Principles, properties and applications

Author: Hugues GUILLET DE CHATELLUS

Publication date: September 10, 2021, Review date: September 14, 2021

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5. Glossary

cavité; cavity

A set of mirrors to reflect photons back into the amplifying medium to produce cascade amplification. Mirrors can be localized or distributed, as in the case of Bragg gratings.

laser; laser (Light Amplification by Stimulated Emission of Radiation)

Device combining an amplifying medium (or gain medium) and a cavity to produce spatially and temporally coherent radiation.

amplifying medium or gain medium; gain medium

Seat of light amplification through stimulated emission. It can take different forms (gas, liquid or solid bulb).

mode; fashion

Refers to a solution of the electromagnetic field to the propagation equation and boundary conditions imposed by the cavity. Spatial modes correspond to the transverse...

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