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:
Sep. 08, 2026
Filed:
Dec. 17, 2025
Corning Research & Development Corporation, Corning, NY (US);
Peter J. Johnston, Taylorsville, NC (US);
Xiang-Dong Mi, Corning, NY (US);
Christopher Mark Quinn, Hickory, NC (US);
Michael Sauer, Corning, NY (US);
David Alan Seddon, Advance, NC (US);
CORNING RESEARCH & DEVELOPMENT CORPORATION, Corning, NY (US);
Abstract
An optical fiber cable comprises a plurality of buffer tubes, a hollow-core optical fiber disposed within one of the plurality of buffer tubes, and a central strength member. The plurality of buffer tubes are helically stranded about the central strength member, where a diameter d of the central strength member and a lay length l of the plurality of buffer tubes around the central strength member satisfy the following inequality: d≤0.075l−6.875. A cable jacket surrounds the plurality of buffer tubes, where a radius of curvature of the hollow-core optical fiber, when the optical fiber cable is kept straight at a temperature of 20° C., is 200 mm or greater.