Fritless endbell assembly

Details Fritless endbell assembly Fritless endbell assembly

1986-06-20

1987-11-10

Davie, James W.

Coherent light generators

Particular active media

Gas

65 36, 65 37, 228193, 372100, 372101, 372103, H01S 3203

Patent

active

047062568

ABSTRACT:
An endbell assembly operatively associated with a laser body includes a metal endbell component sealed to a crystalline endbell component which terminates with a crystalline optical component. The crystalline endbell and crystalline optical component are hermetically sealed without using a frit. This is achieved by polishing and a modified optical contacting technique whereby the optical component and crystalline endbell component are polished to a flatness of about 1/2 wavelength of light, placed in a contacting position and then thermally cycled at a temperature of about 400.degree.-500.degree. C. for about 1 to 10 hours, forming a substantially uniform unitary body. This seal is mechanically strong and minimizes the introduction of contaminants into the endbell assembly. In one embodiment, the crystalline endbell component is metallized and braze-sealed to the metal endbell component. In another embodiment, the two endbell components are hermetically sealed by modified optical contact and thermal cycling.

REFERENCES:
patent: 3555450 (1971-01-01), Rockwell et al.
patent: 4637684 (1987-01-01), Tomita et al.
patent: 4677640 (1987-06-01), Petersen et al.

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