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:
May. 23, 2017
Filed:
Aug. 13, 2015
Ofs Fitel, Llc, Norcross, GA (US);
Peter I Borel, Frederiksberg, DK;
Rasmus V. S. Jensen, Frederiksberg, DK;
Ole A Levring, Virum, DK;
Jorgen Ostgaard Olsen, Copenhagen, DK;
David W Peckham, Lawrenceville, GA (US);
Dennis J Trevor, Clinton, NJ (US);
Patrick W Wisk, Greenbrook, NJ (US);
Man F Yan, Berkeley Heights, NJ (US);
OFS FITEL, LLC, Norcross, GA (US);
Abstract
The core region of an optical fiber is doped with chlorine in a concentration that allows for the viscosity of the core region to be lowered, approaching the viscosity of the surrounding cladding. An annular interface region is disposed between the core and cladding and contains a concentration of fluorine dopant sufficient to match the viscosity of the core. By including this annular stress accommodation region, the cladding layer can be formed to include the relatively high concentration of fluorine required to provide the desired degree of optical signal confinement (i.e., forming a 'low loss' optical fiber).