D.C. Excitation of high pressure gas lasers

Details D.C. Excitation of high pressure gas lasers D.C. Excitation of high pressure gas lasers

1976-04-06

1978-03-21

Sikes, William L.

Oscillators

Molecular or particle resonant type

313309, H01S 3097

Patent

active

040805786

ABSTRACT:
A gas laser system with moderate speed gas glow through the optical cavity to facilitate D.C. excitation of the gas to lasing levels. An electrode assembly is positioned so as to provide a glow discharge transverse to the optical axis within the optical cavity when a high D.C. voltage is applied thereto. By maintaining the high rate of flow of gas through the cavity, the glow discharge is stabilized while the gas medium is maintained at high pressure. Proper choice of electrode geometry and flow rate of the gas through the optical cavity allows the laser system to operate at pressures from a few Torr to atmospheric pressure and above thereby producing a high power CW output.

REFERENCES:
patent: 3743963 (1973-07-01), Bullis et al.
patent: 3758874 (1973-09-01), Hoag
patent: 3860877 (1975-01-01), Hoag et al.
Seguin, H. J. et al., Apllied Optics, vol. 11, No. 4, Apr. 1972, pp. 745-748.
Rusbult, D. et al., Atomkernenergie, BD. 19, (1972), LFG. 3, pp. 211-216.

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