Coherent light generators – Particular pumping means – Electrical
Patent
1987-09-30
1989-03-14
Scott, Jr., Leon
Coherent light generators
Particular pumping means
Electrical
372 25, 372 9, 372 33, H01S 3097
Patent
active
048130532
ABSTRACT:
A method and an apparatus for preionizing a lasing gas mixture in a gas discharge laser. A short pulse of ionizing particles, such as electrons produced by an electron beam are beamed from the electron source, through a window and into the laser container to preionize a gas mixture containing CO.sub.2, N.sub.2, and He. Immediately after the gas mixture has been preionized, the discharge voltage is raised from a sustaining level to a discharge-maintaining level. The gas mixture can be maintained in its excited state for an extended time, and a longer pulse of laser light results. The electron beam and the discharge voltage can be coordinated by a control system connected to the high voltage sources used to produce the electron beam and the gas discharge.
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DiFaccio Mark A.
Fisher Charles H.
Jr. Leon Scott
Spectra-Physics Inc.
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