Coherent light generators – Particular active media – Gas
Patent
1985-05-07
1986-10-14
Scott, Jr., Leon
Coherent light generators
Particular active media
Gas
372 87, 372 34, 372 61, 372 83, H01S 322
Patent
active
046176683
ABSTRACT:
In a laser using an electrical discharge produced between a pair of electrodes a catalyst is used for the recombination of gain medium components dissociated by the discharge. The catalyst material is confined by a catalyst container made of conductive material. The container has apertures smaller than the smallest catalyst particle and bigger than the molecule size of the gain medium. The conductive surface forms a cage which protects the catalyst, usually a powder, from the dispersing effects of the large electric fields present in the laser, and the aperture size allows the gain medium to contact the catalyst while preventing the catalyst powder from dispersing throughout the laser. The cage is placed adjacent the region in which the discharge takes place. Preferably, the cage is placed in contact with one of the electrodes in order to transfer heat from the electrode to the catalyst. With such an arrangement, the discharge is sufficient to cause a portion of the gain medium to pass over the catalyst and the increased temperature of the catalyst improves the effectiveness of the catalyst on the recombination rate.
REFERENCES:
patent: 4150343 (1979-04-01), Seelig et al.
patent: 4451924 (1984-05-01), Lici et al.
patent: 4547886 (1985-10-01), Kaminski et al.
Appl. Phys. Lett. 32(11), Jun. 1, 1978, "Sealed Multiatomosphere CO.sub.2 TEA Laser: Seed-Gas Compatible System Using Unheated Oxide Catalyst" R. B. Gibson, A. Javan and K. Boyer pp.: 726-727.
Gibson et al., "Sealed Multiatmosphere CO.sub.2 TEA Laser: Seed-Gas Compatible System Using Unheated Oxide Catalyst", App. Phys. Lett. 32(11), Jun. 1, '78.
Goto et al., "Construction of a Practical Sealed-Off He-I.sup.30 Laser Device", 8056 Journal of Physics E Scientific Instruments, vol. 10, No. 3, 1977, pp. 292-295.
Barnie James W.
Rudko Robert I.
Jr. Leon Scott
Raytheon Company
Sharkansky Richard M.
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