Gas laser in particular CO.sub.2 laser
OwnerNorbert Suessmuth, Jeng-Ming Wuinventors
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Abstract
A gas laser, in particular a CO.sub.2 laser, contains as laser medium a gas that is excited into a plasma by a HF energy supply, in particular a microwave energy supply, whereas the HF waves are coupled into the laser medium (4) through a rectangular waveguide (1). In order to obtain a compact structure with an efficient coupling of the HF energy, coupling is ensured by means of a ribbon-shaped waveguide (3) that projects into the rectangular waveguide (1) and thus also allows the outcoupling on all sides of the rectangular waveguide.
Claims26
A gas laser, in particular a CO.sub.2 laser, having as a laser medium a gas which is excited to form a plasma by a supply of RF power, in particular having a form of microwave energy, RF waves being coupled into the laser medium (4) from a rectangular waveguide (1), characterized in that coupling in is performed with aid of a ribbon-shaped waveguide (3) which projects, into the rectangular waveguide (1).
Dependencies are inferred from the claim text.