The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 23, 1993
Filed:
Oct. 23, 1991
Applicant:
Inventor:
Paul R Blaszuk, Lebanon, CT (US);
Assignee:
United Technologies Corporation, Hartford, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01S / ;
U.S. Cl.
CPC ...
372 95 ;
Abstract
A high power convective flow gas laser having reduced aberration is characterized by negative branch unstable resonator configuration. The present laser is configured to invert an intracavity beam about a focal point within the optical cavity, thereby avoiding a region of high temperature gas located adjacent to the excitation cathode. The present laser has an output beam whose profile corresponds to the theoretical annular shape and is further characterized by an extraction efficiency on par with those of known lasers.