Coherent light generators – Particular active media – Gas
Patent
1988-03-04
1988-12-27
Sikes, William L.
Coherent light generators
Particular active media
Gas
372 88, H01S 322
Patent
active
047946121
ABSTRACT:
A metal ion laser includes a glass tube, a hollow cathode installed in the glass tube, a plurality of anodes arranged on the glass tube, a pair of Brewster windows fixed to both end of the glass tube, at least one of reservoir recessed in the glass tube for storing a metal material to be evaporated, and at least one of communicating passage formed in the hollow cathode corresponding to each the reservoir so as to communicate between each reservoir and the inside of the hollow cathode. A cooling element is arranged on the glass tube, between the Brewster window and each end of the hollow cathode. A cooling system is arranged in a casing for the laser. The sputtered product is mainly deposited on the inner wall of the reservoir nearby the communicating passage, and the rest of the sputtered product and the vapored materials are deposited at the cooling element arranged between each end of the hollow cathode and each Brewster window. Thus the Brewster windows and the anodes can be free from being spoiled by the sputtered or evapored materials.
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Koito Seisakusho Co. Ltd.
Randolph B.
Sikes William L.
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