Coherent light generators – Particular pumping means – Electrical
Patent
1980-07-03
1982-09-28
Sikes, William L.
Coherent light generators
Particular pumping means
Electrical
372 29, H01S 3093
Patent
active
043521886
ABSTRACT:
A discharge-excited waveguide gas laser is disclosed utilizing a transverse rf excitation voltage at a frequency of at least about 30 MHz applied between elongated electrodes on opposite sides of the laser discharge chamber. A plurality of shunt inductances are coupled between the electrodes externally of the chamber at periodically spaced locations along the length of the chamber. These inductances provide a negative admittance which compensates for the variation in the phase angle of the transmission line reflection coefficient along the length of the laser discharge chamber. The variation in the magnitude of the standing wave voltage produced in the chamber by the excitation voltage is reduced accordingly, thereby improving the uniformity of the laser-exciting discharge.
REFERENCES:
patent: 4169251 (1979-09-01), Laakmann
"High Power, Subnanosecond Pulse From a TEA Nitrogen Laser with Traveling Wave Excitation", Salzmann et al., Oiot. Comm. vol. 12, No. 4, p. 370, Dec. 1974.
"Folded Parallel Plate N.sub.2 Laser", Loy et al., IBM Tech. Discl. Bull., vol. 18, No. 3, (Aug. 1975), p. 950.
Coble Paul
Hughes Aircraft Company
Jr. Leon Scott
MacAllister William H.
Sikes William L.
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