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:
Aug. 15, 1989
Filed:
May. 26, 1988
Itamar Shoshan, Ramat, IL;
Elop Electrooptics Industries Ltd., Rehovot, IL;
Abstract
The invention relates to means for generating a laser beam with an essentially constant angle of divergence over a wide range of operating conditions. The invention further relates to a method of generating such laser beam. The oscillator-amplifier laser system of the invention comprieses in combination an optical resonator, a first active medium and first optical means located within said resonator for generating an oscillator beam; a second active medium for amplifying said oscillator beam and a second optical means external to said resonator. Said first and second optical means have each, according to the invention, a predetermined optical power which maintains a constant divergence-angle of the output beam, even under variations in the induced optical power of the active media. Thus, there is provided an oscillator-amplifier laser system provided with optical means resulting in a beam having an essentially constant divergence angle over a wide range of operating conditions, and particularly over a wide range of repetition rates.