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. 18, 2025
Filed:
Apr. 05, 2023
Corning Incorporated, Corning, NY (US);
Scott Robertson Bickham, Corning, NY (US);
Snigdharaj Kumar Mishra, Wilmington, NC (US);
Pushkar Tandon, Painted Post, NY (US);
Corning Incorporated, Corning, NY (US);
Abstract
An optical fiber including a core region having an outer radius rin a range from 4.0 μm to 8.0 μm and a relative refractive index profile Δwith a maximum relative refractive index Δin a range from 0.20% to 0.50%, a cladding region comprising a trench cladding region having a minimum relative refractive index Δgreater than −0.60% and less than −0.10%, and a trench volume greater than 30%-μmand an outer cladding region having a relative refractive index Δin a range from −0.10% to 0.10%. The optical fiber also including a primary coating and a secondary coating. The optical fiber has a mode field diameter at 1310 nm of greater than 8.8 microns, a cable cutoff wavelength of less than 1260 nm, a zero dispersion wavelength between 1300 nm and 1324 nm, and low macrobend loss at 1550 nm.