Direct focussed gas laser

Details Direct focussed gas laser Direct focussed gas laser

1981-06-22

1984-01-10

Sikes, William L.

Coherent light generators

Particular resonant cavity

Specified cavity component

372107, 372 61, H01S 308

Patent

active

044256558

ABSTRACT:
A direct focussed gas laser 9 wherein the last surface 40, 48A, 48B of the output mirror, in the case of a laser where the mirrors are integral to the ends of the laser tube envelope, is shaped such that it produces a cone 42, or wedge shaped 70, beam. A spherical surface provides a cone-shaped beam, while cylindrical surfaces produce a wedge shaped beam. In the case of a Brewster type laser, the envelope-enclosing windows are correspondingly shaped.

REFERENCES:
patent: 3942133 (1976-03-01), Kutay et al.

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