Coherent light generators – Particular active media – Gas
Patent
1995-01-26
1996-03-05
Scott, Jr., Leon
Coherent light generators
Particular active media
Gas
372 66, 372 35, H01S 303
Patent
active
054973929
ABSTRACT:
A high temperature laser assembly capable of withstanding operating temperatures in excess of 1500.degree. C. is described comprising a segmented cylindrical ceramic lasing tube having a plurality of cylindrical ceramic lasing tube segments of the same inner and outer diameters non-rigidly joined together in axial alignment; insulation of uniform thickness surround the walls of the ceramic lasing tube; a ceramic casing, preferably of quartz, surrounding the insulation; and a fluid cooled metal jacket surrounds the ceramic casing. In a preferred embodiment, the inner surface of each of the ceramic lasing tube segments are provided with a pair of oppositely spaced grooves in the wall thereof parallel to the center axis of the segmented cylindrical ceramic lasing tube, and both of the grooves and the center axis of the segmented cylindrical ceramic lasing tube lie in a common plane, with the grooves in each ceramic lasing tube segment in circumferential alignment with the grooves in the adjoining ceramic lasing tube segments; and one or more ceramic plates, all lying in a common plane to one another and with the central axis of the segmented ceramic lasing tube, are received in the grooves to provide additional wall area in the segmented ceramic lasing tube for collision and return to ground state of metastable metal atoms within the segmented ceramic lasing tube.
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Alger Terry W.
Finucane Raymond G.
Hall Jerome P.
Sawicki Richard H.
Daubenspeck William C.
Jr. Leon Scott
Moser William R.
The United States of America as represented by the United States
Valdes Miguel A.
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