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US 4,719,639 AGranted
Carbon dioxide slab laser
OwnerJohn Tulipinventor
Life of this patent
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Abstract
A carbon dioxide slab laser includes a pair of cooled metal electrodes disposed to form a gap of less than about 3 millimeters. The electrode surfaces on either side of the gap are polished and highly reflectant. A radio frequency discharge is provided between the electrodes to pass through gas disposed in the gap which is suitable for laser action. Cooling of the gases between the electrodes is achieved by conduction to the metal surfaces of the electrodes. Contrary to conventional flowing gas lasers, the two electrodes both reflect and guide the laser light and serve to cool the gas by conduction.
Claims14
A gas slab laser comprising:
- first and second elongated electrodes each including a planar light reflecting surface disposed so as to form a light guide only in a plane perpendicular to the said planar surface and to define a gas discharge gap therebetween;
- a laser gas disposed in said gap;
- and
- means for applying a radio frequency current between said first and second electrodes to establish a laser-exciting discharge in said laser gas.
1 more element
Dependencies are inferred from the claim text.