Coherent light generators – Particular active media – Gas
Patent
1980-03-14
1982-08-31
Davie, James W.
Coherent light generators
Particular active media
Gas
372 59, 372 60, H01S 302, H01S 322
Patent
active
043476139
ABSTRACT:
A method and apparatus for convection control of metallic halide vapor density in a metallic halide laser (10). More particularly, an apparatus is disclosed wherein a reservoir (48) containing copper chloride (62), which in the exemplary embodiment is the metallic halide chosen, is heated so that the copper chloride is maintained in a liquid form. The apparatus includes a means for flowing a buffer gas, which in the exemplary embodiment is neon, over the liquid copper chloride to provide a mixture of copper chloride vapor and neon (72') above the liquid copper chloride. A conduit (50) for providing fluid communication between the reservoir (68) containing the copper chloride vapor
eon mixture and the laser (10) is also included. The copper chloride vapor density in the laser is related to the liquid copper chloride temperature and the neon flow rate through the reservoir (68). In accordance with a further feature of the exemplary embodiment, neon is also provided directly to the laser in order to provide a further means of controlling the copper chloride vapor density in the laser.
REFERENCES:
patent: 3789320 (1974-01-01), Hepburn
patent: 4068196 (1978-01-01), Hohla et al.
patent: 4129835 (1978-12-01), Daiber et al.
patent: 4224579 (1980-09-01), Maslett et al.
Pivirotto, "Potentially high-energy copper halide laser", Conference on Laser And Electrooptical Systems, OSA/IEEE, Feb. 7-9, 1978, San Diego, Calif., Digest of Technical Papers, pp. 74-75.
Nerheim, "A Multiple Wavelength Mixed Metal Halide Laser", Proceedings of the International Conference on Lasers '79, Orlando, Fla., Dec. 17-21, 1979, pp. 323-326.
Frosch Robert A. Administrator of the National Aeronautics and Space
Pivirotto Thomas J.
Davie James W.
Manning John R.
McCaul Paul F.
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