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:
Jan. 28, 2014
Filed:
Jul. 01, 2009
Jan Vydra, Hanau, DE;
Peter Bauer, Seligenstadt, DE;
Karsten Braeuer, Bruchkoebel, DE;
Michael Huenermann, Alzenau, DE;
Jan Vydra, Hanau, DE;
Peter Bauer, Seligenstadt, DE;
Karsten Braeuer, Bruchkoebel, DE;
Michael Huenermann, Alzenau, DE;
Heraeus Quarzglas GmbH & Co. KG, Hanau, DE;
Abstract
A known refraction-sensitive optical fiber comprises a core zone with an index of refraction n, a jacket zone surrounding the core zone, said jacket zone having an index of refraction n, and an annular zone made of quartz glass doped with fluorine, said annular zone surrounding the jacket zone and having an index of refraction n, where n<n<n. With this as a starting point, an optical fiber is to be provided that is characterized by high refraction-sensitivity, good spliceability and compatibility, and a method is to be provided for cost-effective manufacture of such a fiber. With regard to the method, this object is accomplished according to the invention in that the quartz glass of the annular zone () is produced in a plasma deposition process on the outside in which an annular zonal layer made of the quartz glass doped with fluorine is produced on a substrate body (), said layer having a layer thickness of at least 1 mm and an index of refraction n<1.4519 relative to the D line of the sodium vapor lamp.