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:
Nov. 21, 1978
Filed:
Jun. 24, 1977
Richard A Chodzko, Rancho Palos Verdes, CA (US);
Stephen B Mason, Woodland Hills, CA (US);
Abstract
An unstable resonator is disclosed that couples power out of an annular gain region in a single transverse mode through the use of spherical mirrors. A four-element cavity comprising a confocal unstable resonator with a double-sided 45.degree. output coupling mirror in conjunction with a flat feedback mirror is used. A flat, totally reflecting feedback mirror is placed on the normally plane wave output side of the confocal cavity, forming an annular mode between the feedback mirror and the coupling mirror. A plane annular wave is fed back into the resonator, which alternately converges and diverges to produce an output beam in the form of a diverging annular beam. The converging wave unstable cavity has the novel property whereby increasing geometric magnification corresponds to increasing saturation of the active medium, in contrast to a conventional edge-coupled unstable cavity.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile