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. 23, 1984
Filed:
Sep. 27, 1979
Zsolt Bor, Goettingen, DE;
Fritz P Schafer, Goettingen, DE;
Max-Planck-Gesellschaft Zur Foerderung Der Wissenschaften e.V., Goettingen, DE;
Abstract
Ultra-short individual laser pulses, having a half-amplitude duration of 100 picoseconds or less and a recurrence frequency of one Hz to one mHz are generated in a self Q-switching distributed feedback dye laser that employs a high density diffraction grating as a beam divider, dividing a primary beam from a pulsed pump laser into two excitation beams of +1 and -1 order; the excitation beams are directed, by two reversing mirrors, to impinge upon a focal line in a dye solution serving as an active laser medium. The pulses of the primary beam have a half-amplitude duration many times greater than 100 psec but no greater than 20 nsec, and the beam intensity is such that the stimulation of the dye does not exceed its laser threshold by more than 20%.