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. 20, 2018
Filed:
Apr. 15, 2015
Applicant:
J-plasma Gmbh, Jena, DE;
Inventors:
Ralitsa Rosenow, Jena, DE;
Roland Heinze, Jena, DE;
Jörg Kötzing, Jena, DE;
Robert Hanf, Eisenberg, DE;
Lothar Brehm, Jena, DE;
Assignee:
j-plasma GmbH, Jena, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/02 (2006.01); C03B 37/012 (2006.01); C03B 37/025 (2006.01);
U.S. Cl.
CPC ...
C03B 37/01211 (2013.01); C03B 37/0253 (2013.01); C03B 2201/02 (2013.01); C03B 2201/12 (2013.01); C03B 2203/12 (2013.01); C03B 2203/23 (2013.01); C03B 2205/40 (2013.01); C03B 2205/42 (2013.01); C03B 2205/56 (2013.01); C03B 2205/72 (2013.01);
Abstract
Preform for an optical waveguide containing a core with a non-circular geometry and at least one cladding layer, in which the dopand concentration of the cladding layer is increased compared to the dopand concentration of a preform with circular core geometry and identical NA. A method for the production of a preform for an optical fiber is provided. An optical waveguide with a nominal dopand concentration of c(eff)×F≤c(nom) in at least one cladding layer is also provided.