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. 10, 2015
Filed:
Dec. 15, 2009
Applicants:
Kelvin Prosyk, Luskville, CA;
Ronald Kaiser, Berlin, DE;
Karl-otto Velthaus, Kleinmachnow, DE;
Inventors:
Assignees:
Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V., Munich, DE;
Teraxion Inc., Quebec, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 6/26 (2006.01); G02B 6/42 (2006.01); G02B 6/122 (2006.01); G02B 6/30 (2006.01);
U.S. Cl.
CPC ...
G02B 6/1228 (2013.01); G02B 6/305 (2013.01);
Abstract
A monolithic optoelectronic device has a spot-size converter optically connected to a waveguide. The overclad extending over the core of the waveguide is thinner and more highly doped that the overclad of the spot-size converter. This structure can be made by applying a process of selective etching and enhanced regrowth to create selective regions of the overclad of different thickness or doping.