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. 21, 2021
Filed:
Jan. 14, 2020
Corning Incorporated, 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
An optical fiber includes (i) a chlorine doped silica based core having a core alpha (Core)≥4, a radius r, and a maximum refractive index delta Δ% and (ii) a cladding surrounding the core. The cladding surrounding the core includes a) a first inner cladding region adjacent to and in contact with the core and having a refractive index delta Δ, a radius r, and a minimum refractive index delta Δsuch that Δ<Δ, b) a second inner cladding adjacent to and in contact with the first inner cladding having a refractive index Δ, a radius r, and a minimum refractive index delta Δsuch that Δ<Δ, and c) an outer cladding region surrounding the second inner cladding region and having a refractive index Δ, a radius r, and a minimum refractive index delta Δsuch that Δ<Δ. The optical fiber has a mode field diameter MFD at 1310 of ≥9 microns, a cable cutoff of ≤1260 nm, a zero dispersion wavelength of 1300 nm≤zero dispersion wavelength≤1324 nm, and a macrobending loss at 1550 nm for a 20 mm mandrel of less than 0.75 dB/turn.