公开(公告)号：US20220171145A1

公开(公告)日：2022-06-02

申请号：US17671866

申请日：2022-02-15

Applicant: CORNING INCORPORATED

Inventor： Ming-Jun Li ,  Qi Wu

IPC: G02B6/44 ,  G02B6/38

Abstract: A fiber ribbon interconnect may include a fiber ribbon, a first optical connector at a first end of the fiber ribbon, and a second optical connector at a second end of the fiber ribbon. The fiber ribbon includes two or more cladding-strengthened glass optical fibers each having an outer surface. The fiber ribbon also includes a common protective coating that surrounds the outer surfaces of the two or more cladding-strengthened glass optical fibers.

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.

公开(公告)号：US11307350B2

公开(公告)日：2022-04-19

申请号：US16944485

申请日：2020-07-31

Applicant: CORNING INCORPORATED

Inventor： Ming-Jun Li ,  Snigdharaj Kumar Mishra ,  Pushkar Tandon

IPC: G02B6/036 ,  G02B6/02

Abstract: The single mode optical fiber disclosed herein has a core, an inner cladding, a trench and an outer cladding, along with a non-glass protective coating. The refractive index profile of the optical fiber is such that the optical fiber has relatively low bend loss at both small and large bend diameters. The relative refractive indices of the inner cladding, trench and outer cladding are such that a tunneling point that arises during bending is pushed out beyond the trench and thus sufficiently far away from the core so that bending losses for both small and large radius bends are relatively small.

公开(公告)号：US20220026628A1

公开(公告)日：2022-01-27

申请号：US17381835

申请日：2021-07-21

Applicant: CORNING INCORPORATED

Inventor： Kevin Wallace Bennett ,  Scott Robertson Bickham ,  Ming-Jun Li ,  Pushkar Tandon

IPC: G02B6/02 ,  G02B6/036 ,  G02B6/028

Abstract: Multicore optical fibers with low bend loss, low cross-talk, and large mode field diameters In some embodiments a circular multicore optical fiber includes a glass matrix; at least 3 cores arranged within the glass matrix, wherein any two cores have a core center to core center spacing of less than 29 microns; and a plurality of trench layers positioned between a corresponding core and the glass matrix, each trench layer having an outer radius of less than or equal to 14 microns and a trench volume of greater than 50% Δ micron2; wherein the optical fiber has a mode field diameter of greater than about 8.2 microns at 1310 nm, and wherein the optical fiber has an outer diameter of less than about 130 microns.

公开(公告)号：US20210405286A1

公开(公告)日：2021-12-30

申请号：US17332544

申请日：2021-05-27

Applicant: CORNING INCORPORATED

Inventor： Ming-Jun Li ,  Pushkar Tandon

IPC: G02B6/028 ,  G02B6/036 ,  G02B6/02 ,  C03B37/012 ,  C03B37/014 ,  C03B37/027 ,  C03C25/002

Abstract: A single mode optical fiber is provided that includes a core region and a cladding region, the cladding region including a depressed-index cladding region, a first outer cladding region, and a second outer cladding region. The first outer cladding region has a lower relative refractive than the second outer cladding region. The single mode optical fiber has a bend loss at 1550 nm for a 15 mm diameter mandrel of less than about 0.75 dB/turn, has a bend loss at 1550 nm for a 20 mm diameter mandrel of less than about 0.2 dB/turn, and a bend loss at 1550 nm for a 30 mm diameter mandrel of less than about 0.005 dB/turn. Additionally, the single mode optical fiber has a mode field diameter of about 9.0 microns or greater at 1310 nm wavelength and a cable cutoff of less than or equal to about 1260 nm.

公开(公告)号：US20210349257A1

公开(公告)日：2021-11-11

申请号：US17236558

申请日：2021-04-21

Applicant: CORNING INCORPORATED

Inventor： Richard Michael Fiacco ,  Kenneth Edward Hrdina ,  Ming-Jun Li ,  Jeffery Scott Stone ,  Haitao Zhang

IPC: G02B6/036 ,  C03B37/014 ,  C03C13/04

Abstract: An optical fiber can include a core comprising silica co-doped with nitrogen and chlorine and an outer cladding surrounding the core. In some aspects, the core can be characterized by an annealing temperature of less than or equal to about 1150° C. and/or the core can include a relative refractive index Δcore in a range of from about 0.15% to about 0.45%.

公开(公告)号：US20210294024A1

公开(公告)日：2021-09-23

申请号：US17190991

申请日：2021-03-03

Applicant: CORNING INCORPORATED

Inventor： Ming-Jun Li ,  Gaozhu Peng

IPC: G02B6/02 ,  G02B6/036 ,  G02B6/028

Abstract: A multicore optical fiber includes two or more cores, a common interior cladding surrounding the two or more cores, and a common exterior cladding surrounding the common interior cladding. The common exterior cladding has a lower relative refractive index than the common interior cladding and reduces tunneling losses from the cores. The reduced tunneling loss allows placement of cores closer to the edge of the fiber, thus providing multicore optical fibers having higher core count for a given fiber diameter. Separation between cores is controlled to minimize crosstalk.

公开(公告)号：US11009656B2

公开(公告)日：2021-05-18

申请号：US15918352

申请日：2018-03-12

Applicant: Corning Incorporated

Inventor： Dana Craig Bookbinder ,  Steven Bruce Dawes ,  Inna Igorevna Kouzmina ,  Ming-Jun Li ,  Manuela Ocampo ,  Pushkar Tandon

IPC: G02B6/02 ,  G02B6/028 ,  G02B6/036 ,  C08F222/10

Abstract: Small-radius coated optical fibers having large mode field diameter and low bending losses. The coated fiber may have an outer radius of 110 μm or less, while providing a mode field diameter of 9.0 μm or greater and a bending loss when wrapped about a 15 mm mandrel of 0.5 dB/km or less at wavelength of 1550 nm. The coated fiber may have a mode field diameter of 9.2 μm or greater and may have a bending loss at 1550 nm of 0.25 dB/km or less when wrapped about a 20 mm mandrel or a bending loss at 1550 nm of 0.02 dB/km or less when wrapped about a 30 mm mandrel.

公开(公告)号：US11009655B2

公开(公告)日：2021-05-18

申请号：US15864238

申请日：2018-01-08

Applicant: Corning Incorporated

Inventor： Dana Craig Bookbinder ,  Steven Bruce Dawes ,  Inna Igorevna Kouzmina ,  Ming-Jun Li ,  Manuela Ocampo ,  Pushkar Tandon

IPC: G02B6/02 ,  G02B6/028 ,  G02B6/036 ,  C08F222/10

Abstract: Small-radius coated optical fibers having large mode field diameter and low bending losses. The coated fiber may have an outer radius of 110 μm or less, while providing a mode field diameter of 9.0 μm or greater and a bending loss when wrapped about a 15 mm mandrel of 0.5 dB/km or less at wavelength of 1550 nm. The coated fiber may have a mode field diameter of 9.2 μm or greater and may have a bending loss at 1550 nm of 0.25 dB/km or less when wrapped about a 20 mm mandrel or a bending loss at 1550 nm of 0.02 dB/km or less when wrapped about a 30 mm mandrel.

公开(公告)号：US10983267B2

公开(公告)日：2021-04-20

申请号：US16269112

申请日：2019-02-06

Applicant: Corning Incorporated

Inventor： John David Downie ,  Ming-Jun Li ,  William Allen Wood ,  Aramais Robert Zakharian

IPC: G02B6/02 ,  G02B6/036 ,  G02B6/028

Abstract: A quasi-single-mode (QSM) optical fiber includes a core and a cladding surrounding the core. The core includes a centerline and an outer edge. The cladding includes an interior edge and an exterior edge. The cladding has a cladding outer diameter defined by the exterior edge of the cladding. The cladding outer diameter may be in the range of greater than 170 μm to about 200 μm. The QSM fiber has a cabled cutoff wavelength that is greater than about 1530 nm. The core and the cladding support a fundamental mode LP01 and a higher-order mode LP11. The fundamental mode LP01 has an effective area Aeff>150 μm2.