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Plasma tube and method of manufacture

Patent ·
OSTI ID:7122704
A description is given of a plasma tube for gas lasers including an elongate cylindrical glass envelope closed at one end with a conductive metal anode disc and at the other with a metal cathode disc, each of which has been intimately fused with the envelope. The envelope carries an internally mounted capillary having a bore for confining a discharge within the tube, the capillary being supported by a flange member connected between the capillary and the envelope. Each disc has a centrally located aperture which is aligned with the capillary bore, each aperture being closed by a suitable reflector for defining an optical cavity. Fine tuning of the cavity is accomplished by incremental deformation of one or both of the discs.
Assignee:
Spectra-Physics, Inc.
Patent Number(s):
US 3988698
OSTI ID:
7122704
Country of Publication:
United States
Language:
English

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