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:
May. 02, 1995
Filed:
Feb. 04, 1994
William L Nighan, Jr, Menlo Park, CA (US);
Mark S Keirstead, San Jose, CA (US);
Spectra-Physics Lasers, Inc, Mountain View, CA (US);
Abstract
A high efficiency, diode pumped laser includes a resonator mirror and an output coupler which define a nearly confocal resonator. Positioned in the resonator is a laser crystal. A diode pump source supplies a pump beam to the laser crystal and produces an output beam. A strong thermal lens transforms a non-confocal resonator to a nearly confocal resonator. The TEMOO mode diameter in the laser crystal may be smaller than the pump beam diameter that is incident on the laser crystal. Output powers greater than about 4 W are achieved, the overall optical efficiency is greater than about 25%, and an optical slope efficiency in a TEMOO mode of greater than 40% is possible.