Multi-channel, RF-excited gas discharge laser
AssigneeDomino Printing Sciences PLC
InventorLeroy V. Sutter
Life of this patent
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Abstract
The invention relates to a multi-channel RF-excited gas laser device which has an elongate tubular dielectric housing 1. The housing has a common elongate ground electrode 2 therein and a plurality of laser channels 4 defined within and extending along the ground electrode 2 adjacent to an interior surface 3 of the dielectric housing. A laser gas is provided within the dielectric housing and a plurality of RF electrodes 7 are disposed adjacent to and extending along an external surface 8 of the dielectric housing 1. Each RF electrode 7 is disposed in registration with one of the laser channels 4.
Claims8
A multi-channel RF-excited gas laser device comprising an elongate tubular dielectric housing having an inner and an outer surface;
- an elongate ground electrode provided within said dielectric housing;
- a plurality of laser channels defined within and extending along said ground electrode adjacent to the inner surface of said dielectric housing;
- a laser gas provided within said dielectric housing;
- and
- a plurality of RF electrodes disposed adjacent to and extending along the outer surface of said dielectric housing, each RF electrode being disposed in registration with a respective one of said laser channels, whereby placement of the RF electrodes along the outer surface of the dielectric housing stabilizes laser discharge and prevents electrical arcing between the electrodes.
Dependencies are inferred from the claim text.