Laser gas orifice injection system

Details Laser gas orifice injection system Laser gas orifice injection system

1987-09-24

1989-01-17

Scott, Jr., Leon

Coherent light generators

Particular active media

Gas

372 65, 372 87, H01S 322

Patent

active

047992310

ABSTRACT:
A laser resonator system including an optical resonator whose side wall has an orifice through which gas may enter the resonator's interior, and may subsequently flow along the resonator's longitudinal axis. An elongated electrode (which preferably is an anode) is positioned at the orifice in electrical communication with the entering gas so that the projection of the electrode's tip on the plane of the orifice does not coincide with the center of the orifice. In a preferred embodiment, the electrode's longitudinal axis is aligned generally perpendicular to the plane of the orifice. In another preferred embodiment, two such electrode-orifice pairs are provided and are separated by a small distance along the resonator's axis. The orifice positions are preferably on opposite sides of the resonator, so that they are separated by an azimuthal angle substantially equal to 180.degree. with respect to the resonator tube's longitudinal axis. The relative position and orientation of each electrode-orifice pair results in an improved, flatter gas velocity profile downstream from the orifice.

REFERENCES:
patent: 4470144 (1984-09-01), Sano et al.
patent: 4481632 (1984-11-01), Herbrich et al.
patent: 4502145 (1985-02-01), Allen et al.
patent: 4622675 (1986-11-01), Penn
patent: 4635272 (1987-01-01), Kamide et al.
patent: 4646310 (1987-02-01), Koseki
patent: 4660209 (1987-04-01), Osada et al.
patent: 4661958 (1987-04-01), Bowes et al.
patent: 4672621 (1987-06-01), Morita et al.
patent: 4701925 (1987-10-01), Fuke et al.

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