公开(公告)号：US20240151609A1

公开(公告)日：2024-05-09

申请号：US18490897

申请日：2023-10-20

Applicant: CORNING INCORPORATED

Inventor： Zoren Dene Bullock ,  Xin Chen ,  Hao Dong ,  Ming-Jun Li ,  Simit Mayank Patel

IPC: G01M11/00

CPC classification number: G01M11/30

Abstract: A method of selecting a group of multimode optical fibers, includes comparing a first effective modal bandwidth at a first wavelength of a multimode optical fiber with a first effective modal bandwidth threshold at the first wavelength, the multimode optical fiber being in a group of multimode optical fibers meeting a first OM standard, wherein the first wavelength is from 844 nm to 863 nm; and categorizing the multimode optical fiber as passing a transmission distance requirement if the first effective modal bandwidth of the first multimode optical fiber is greater than or equal to the first effective modal bandwidth threshold; wherein the transmission distance is defined in a transceiver specification, wherein the transceiver specification is one or more of: (a) an 800G bidirectional (BiDi) transceiver specification, or (b) a 100G/lane based MM VCSEL transceiver specification, or (c) a 25Gbaud based transceiver specification, or (d) 50G PAM4 based transceiver specification.

公开(公告)号：US20220137289A1

公开(公告)日：2022-05-05

申请号：US17514060

申请日：2021-10-29

Applicant: CORNING INCORPORATED

Inventor： Xin Chen ,  Hao Dong ,  Kangmei Li ,  Ming-Jun Li ,  Pushkar Tandon ,  Scott Robertson Bickham

IPC: G02B6/028 ,  G02B6/02

Abstract: A optical fiber comprising a central core region having an outer radius r1 of 3 μm to 7 μm, and a maximum refractive index Δ1 of 0.25% to 0.5% and an alpha (a) profile of 1 to 20; a cladding region comprising (i) a first inner cladding region surrounding the core, having a refractive index Δ2 of −0.25% to 0.05% and a radius r2 of 6 μm to 15 μm, (ii) a second inner cladding region, surrounding the first inner cladding region, having a refractive index Δ3 of −0.1% to 0.2% and a radius r3 of 7 μm to 15 μm, and (iii) an outer cladding region, surrounding the second inner cladding region, having a refractive index Δ4 between −0.05% to 0.1%; wherein the optical fiber exhibits a cable cutoff of less than 1260 nm, a mode field diameter at 1310 nm of greater than 8.2 microns.