Kiinteäaineelasereiden
Kiinteäaineelasereiden (KAE) are a type of laser that uses a solid material as the gain medium, unlike traditional lasers that employ gases, liquids, or semiconductors. The active medium in KAE is typically a crystalline or glass-like substance, which can be doped with rare-earth elements or other suitable ions to achieve laser action. The interaction between the laser light and the solid material can be either direct, where the light is absorbed and re-emitted by the atoms or ions, or indirect, involving intermediate energy levels or defects in the crystal structure.
The lasing process in KAE begins with the absorption of pump energy, usually provided by a separate
KAE offer several advantages over other laser types, including high power output, high efficiency, and the ability