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US 4,068,192 AGranted
Gas laser starting
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorsRobert T. Hintz, Fred T. Rogers
Life of this patent
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Abstract
A starting device for a sealed, cross-flow gas laser for operating at least wo electric discharges simultaneously in a single laser cavity using primary fins between the cathodes and anodes of the cavity as intermediate electrodes. A series of high voltage relays and resistors are placed in parallel with the discharge path between adjacent fin electrodes and by switching out pairs of relays current is coupled to the discharge path, one fin at a time.
Claims5
In a cross flow gas laser;
- a laser cavity;
- electrode means at either end of the laser cavity at a first potential;
- plasma guides at spaced intervals between said electrodes;
- other electrode means at a second potential positioned intermediate said electrode means at either end of said laser cavity;
- switching means serially and electrically interconnecting each of said plasma guides and said electrode means to said other electrode means;
- supply voltage means connected to provide said first and second potentials to said electrode means and said other electrode means thereby creating a potential difference between said electrode means and said other electrode means;
- and stepping means for operating said switching means sequentially to cause said plasma guides to become effective as electrode means with respect to said other electrode means.
4 more elements
Dependencies are inferred from the claim text.