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. 28, 2026
Filed:
Aug. 18, 2023
Corning Incorporated, Corning, NY (US);
Pushkar Tandon, Painted Post, NY (US);
Aramais Robert Zakharian, Painted Post, NY (US);
CORNING INCORPORATED, Corning, NY (US);
Abstract
An uncoupled-core multicore optical fiber is disclosed, the fiber including at least two core portions, each core portion including a core and a depressed-index cladding. The core having a radius rand a relative refractive index Δ. The depressed-index cladding having a radius rand a relative refractive index Δ, the depressed-index cladding surrounding and directly contacting the core, a volume Vof the depressed-index cladding being about 15.0% Δ-micronto about 37.0% Δ-micron. The fiber further includes a common cladding having a radius rand a relative refractive index Δsuch that Δ<Δ<Δ, the common cladding surrounding and directly contacting the depressed-index cladding. Furthermore, a cable cutoff wavelength of each core portion is about 1530 nm or less and a center-to-center spacing between centerlines of adjacent core portions is about 48 microns to about 60 micron.