Oscillators – Molecular or particle resonant type
Patent
1976-03-09
1978-04-18
Sikes, William L.
Oscillators
Molecular or particle resonant type
313198, H01S 3097
Patent
active
040853861
ABSTRACT:
A trigger circuit which operates independently of the main discharge circuit can be used to initiate glow discharge useful for gas laser excitation. By utilizing independent trigger means, such as auxiliary dielectric electrodes, the main discharge can be controlled by modulating only a small part of the total energy input to the laser cavity. The main discharge gap of the laser is prestressed to a voltage below the spark breakdown voltage threshold of the electrode assembly under static conditions but above the glow discharge voltage of the electrode assembly. When the trigger means is pulsed to supply free electrons to the discharge gap the glow discharge is initiated between the electrodes independent of the need for modulating the main power to the gap.
REFERENCES:
patent: 3702973 (1972-11-01), Daugherty et al.
patent: 3721915 (1973-03-01), Reilly
patent: 3886479 (1975-05-01), Pearson
Dumanchin, R. et al, Compt. Rend. Acad. Sc. Paris, Series B, vol. 269, Nov. 3, 1971, pp. 916-917.
Denes, et al, Electronics Letters, vol. 7, No. 12, June 17, 1971, pp. 337-338.
Heller, B. et al, Electrical & Electronics Abstracts, vol. 70, No. 837, Sept. 1967, p. 1099.
Farish Owen
Hundstad Richard L.
Lynch M. P.
Rasco Marcus S.
Sikes William L.
Westinghouse Electric Corporation
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