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:
Sep. 09, 2014
Filed:
Jun. 10, 2011
Ulrich Weichmann, Aachen, DE;
Matthias Alexander Wilhelm Fechner, Hamburg, DE;
Fabian Reichert, Ahrensburg, DE;
Herbert Walter Klaus Petermann, Wedel, DE;
Gunter Huber, Ellerbek, DE;
Ulrich Weichmann, Aachen, DE;
Matthias Alexander Wilhelm Fechner, Hamburg, DE;
Fabian Reichert, Ahrensburg, DE;
Herbert Walter Klaus Petermann, Wedel, DE;
Gunter Huber, Ellerbek, DE;
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
The invention relates to a laser () for emitting laser light in the visible spectral range. A rare earth doped anisotropic crystal () comprising a-transition is arranged within a laser resonator (), and a pumping light source () pumps the crystal () for generating laser light in the visible spectral range by using the-transition. The-transition of the rare earth doped anisotropic crystal comprises an absorption band extending over several nm. Thus, pump light having a wavelength within a relatively broad wavelength range can be used. This reduces the requirements with respect to the wavelength accuracy of the pumping light source and, thus, more pumping light sources of an amount of produced pumping light sources can be used for assembling the laser, thereby reducing the amount of rejects.