Coherent light generators – Particular pumping means – Electrical
Patent
1980-10-17
1983-10-25
Davie, James W.
Coherent light generators
Particular pumping means
Electrical
372 86, 372 58, H01S 3097
Patent
active
044123337
ABSTRACT:
Uniform, transverse electrical discharges are produced in gaseous media without the necessity of switching the main discharge voltage with an external device which carries the entire discharge current. A three-electrode low pressure discharge tube is charged across its anode (1) and cathode (2) to below breakdown voltage using a dc voltage source (3). An array of resistors (4) or capacitors can be made to discharge to the wire screen anode by means of a low energy high voltage pulse circuit (5) producing sufficient preionization in the region between the anode and cathode to initiate and control the main discharge. The invention has been demonstrated to be useful as a CO.sub.2 laser oscillator and pulse-smoother. It can be reliably operated in the sealed-off mode.
REFERENCES:
"Double Discharge Excitation for Atmospheric Pressure CO.sub.2 Lasers", LaFlamme; Rev. Sci. Inst. 41, 1578, (1970).
"A 300-J Moltigigawatt CO.sub.2 Laser", Richardson et al., IEEE J. of Quant. Electron 9, 236, (1973).
"Effect of a Third Electrode on a Low-Voltage Arc", Kaibyshev et al.; Sov. Phys. Tech. Phys., vol. 20, No. 2.
Davie James W.
Jr. Leon Scott
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