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:
Oct. 13, 1998
Filed:
Apr. 22, 1996
Peter Vitruk, Bothell, WA (US);
Synrad, Inc., Bothell, WA (US);
Abstract
A diffusion-cooled laser has a lasing region shaped to provide a high power output laser beam of a high optical quality. The lasing region, which contains a lasing medium, has a narrow-aperture section and a free-space section. The narrow-aperture section is defined by resonator walls spaced apart a sufficiently small distance that enables effective excitation and cooling of the lasing medium. The free-space section is defined by resonator walls spaced apart a sufficiently larger distance that enables the laser beam to expand without restriction from the resonator walls in the free-space section. The narrow-aperture section enables the laser to generate a high power laser beam using a relatively low (40 MHz) ISM frequency. The free-space section allows the laser beam to expand sufficiently to exit the lasing region with a shape that is easily focused by inexpensive optical elements.