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:
Jul. 20, 2021
Filed:
Nov. 16, 2018
Corning Incorporated, Corning, NY (US);
Scott Robertson Bickham, Corning, NY (US);
Dana Craig Bookbinder, Corning, NY (US);
Ming-Jun Li, Horseheads, NY (US);
Snigdharaj Kumar Mishra, Wilmington, NC (US);
Pushkar Tandon, Painted Post, NY (US);
Corning Incorporated, Corning, NY (US);
Abstract
A single mode optical fiber, comprising: (i) a silica based core having a step refractive index profile with an alpha of greater than 10, a relative refractive index Δ, and an outer radius r, wherein 6.25 microns>r≥4.75 microns, the core further comprising Cl, Ge, or a combination thereof; (ii) a first cladding region in contact with and surrounding the core, the first cladding region having a relative refractive index Δ, an inner radius r, and an outer radius r, wherein r<20 microns; and (iii) an outer cladding region surrounding the first cladding region, the outer cladding region having a relative refractive index Δ. The fiber<1300 nm, a 22m cable cutoff wavelength<1260 nm; and a bend loss<0.005 dB/turn when the optical fiber is bent around a 30 mm mandrel; <0.5 dB/turn when the fiber is bent around a 20 mm mandrel.