Slab laser
AssigneeRofin-Sinar Laser GmbH
InventorsFlorian Engel, Stefan Ruppik, Volker Scholz, Hermann Hage
Life of this patent
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Abstract
In a slab laser, a gas mixture containing carbon dioxide CO2 is formed as a laser-active medium in a discharge space which is formed between two plate-shaped metal electrodes, the flat faces of which are located opposite one another. A resonator mirror is arranged on each of the mutually opposite end faces of the discharge space, the mirrors forming an unstable resonator parallel to the flat faces. At least one of the mutually facing flat faces is provided either on the entire flat face with a dielectric layer the thickness of which is greater on at least one sub-surface than in the remaining area of the flat face, or the at least one flat face is provided with a dielectric layer exclusively on at least one sub-surface.
Claims18
A slab laser, comprising:
- two plate-type metallic electrodes having flat sides disposed opposite one another and defining a discharge space, and end sides disposed opposite one another;
- a gas mixture containing carbon dioxide CO2 as a laser-active medium disposed between said two plate-type metallic electrodes;
- resonator mirrors, one of said resonator mirrors disposed at each of said end sides of said two plate-type metallic electrodes, said resonator mirrors forming an unstable resonator parallel to said flat sides;
- and
- a dielectric layer, wherein at least one of said flat sides facing one another is provided with said dielectric layer on an entire area of said one flat side, a thickness of said dielectric layer being greater on at least one partial area than in a remaining region of said one flat side, said thickness extending toward said flat side of the other one of said plate-type metallic electrodes and said thickness being less than a distance separating said flat sides of said plate-type metallic electrodes from one another and said dielectric layer assisting in selectively suppressing of undesired modes.
A slab laser, comprising:
- two plate-type metallic electrodes having flat sides disposed opposite one another and defining a discharge space, and end sides disposed opposite one another;
- a gas mixture containing carbon dioxide CO2 as a laser-active medium disposed between said two plate-type metallic electrodes;
- resonator mirrors, one of said resonator mirrors disposed at each of said end sides of said two plate-type metallic electrodes, said resonator mirrors forming an unstable resonator parallel to said flat sides;
- and
- a dielectric layer, wherein at least one of said flat sides facing one another is provided with said dielectric layer exclusively on at least one partial area of said one flat side, wherein a thickness of said dielectric layer being less than a distance separating said flat sides of said plate-type metallic electrodes from one another and said dielectric layer assisting in selectively suppressing of undesired modes.
Dependencies are inferred from the claim text.