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. 01, 2005
Filed:
Sep. 20, 2001
Applicants:
Götz Erbert, Berlin, DE;
Günther Tränkle, Berlin, DE;
Hans Wenzel, Berlin, DE;
Inventors:
Assignee:
Osram Opto Semiconductors GmbH, Regensburg, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01S005/00 ;
U.S. Cl.
CPC ...
Abstract
A semiconductor laser has an antiresonant waveguide (), which is formed by a layer sequence applied to a substrate (). The layer sequence has outer waveguide regions (), reflection layers (), and a waveguide core () with an active layer (). With this structure, semiconductor lasers with only slight vertical beam divergence and with a large beam cross section can be produced.