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. 08, 2025
Filed:
Oct. 10, 2022
Corning Research & Development Corporation, Corning, NY (US);
Agnivo Gosai, Painted Post, NY (US);
Jeremy Alexander Graham, Sr., Elmira, NY (US);
William James Miller, Horseheads, NY (US);
David Lee Weidman, Corning, NY (US);
Aramais Robert Zakharian, Painted Post, NY (US);
CORNING RESEARCH & DEVELOPMENT CORPORATION, Corning, NY (US);
Abstract
In one embodiment, a coupler includes a glass tube having a refractive index nand a passageway, a first optical waveguide and a second optical waveguide positioned within the passageway, each of the first optical waveguide and the second optical waveguide comprising a core surrounded by a cladding. The glass tube further includes a tapered region having a taper length. A coupling region is present between the first optical waveguide and the second optical waveguide within the tapered region. A refractive index of the cladding is less than a refractive index of the core, and a lowest refractive index of the cladding of the first optical waveguide and the second optical waveguide is n. Additionally, nis lower than nsuch that a value of Δis 0.07%≤Δ≤0.125, where Δequals (n−n)/2n.