Coherent light generators – Particular pumping means – Electrical
Patent
1982-09-30
1986-03-04
Sikes, William L.
Coherent light generators
Particular pumping means
Electrical
372 83, H01S 3097
Patent
active
045743819
ABSTRACT:
Apparatus for establishing and maintaining a stable discharge across a stream of flowing gas, particularly useful for high-power lasers, comprises working electrodes disposed on opposite sides of the gas flow channel, and starting electrodes adjacent to the upstream working electrodes. Each working electrode includes a ballast impedance and is connected between a high-voltage source and a point of fixed reference potential. Each starting electrode includes a substantially larger ballast impedance and is connected to the point of fixed reference potential such that each starting electrode is effective to bring the point of fixed reference potential to the upstream working electrode to start the discharge, and to draw little current after the discharge has been started.
REFERENCES:
patent: 3696307 (1972-09-01), Beaulieu et al.
patent: 3782712 (1973-12-01), Judd
patent: 3886479 (1975-05-01), Pearson
patent: 3940710 (1976-02-01), Lemay
patent: 4143337 (1979-03-01), Beaulieu
Tulip et al., "High-Repetition Rate TEA Laser Discharge Using Integrated Preionization and Switching"; IEEE J. Quant Electron. vol. QE-12 No. 2, Feb. 1976 pp. 155-159.
Barish Benjamin J.
Jr. Leon Scott
Metalworking Lasers International Ltd.
Sikes William L.
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