Laser apparatus

Details Laser apparatus Laser apparatus

1978-05-10

1980-10-14

Sikes, William L.

Oscillators

Molecular or particle resonant type

331 945T, H01S 302

Patent

active

042284066

ABSTRACT:
Laser apparatus is described wherein an active laser element, such as the disc of a face-pumped laser, is mounted in a housing such that the weight of the element is supported by glass spheres which fill a chamber defined in the housing between the walls of the housing and the edges of the laser element. The uniform support provided by the spheres enable the chamber and the pump side of the laser element to be sealed without affecting the alignment or other optical properties of the laser element. Cooling fluid may be circulated through the sealed region by way of the interstices between the spheres. The spheres, and if desired also the cooling fluid may contain material which absorbs radiation at the wavelength of parasitic emissions from the laser element. These parasitic emissions enter the spheres through the interface along the edge surface of the laser element and it is desirable that the index of refraction of the spheres and cooling fluid be near the index of refraction of the laser element. Thus support, cooling, and parasitic suppression functions are all accomplished through the use of the arrangement.

REFERENCES:
patent: 3404349 (1968-10-01), Rigrod
patent: 3562662 (1971-02-01), Gould et al.
patent: 3621456 (1971-11-01), Young
patent: 3631362 (1968-08-01), Almasi et al.
patent: 3679929 (1972-07-01), Holm et al.
patent: 3725813 (1973-04-01), Yasuda et al.

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