公开(公告)号：US12164143B2

公开(公告)日：2024-12-10

申请号：US17903319

申请日：2022-09-06

Applicant: CORNING INCORPORATED

Inventor： Scott Robertson Bickham ,  Xin Chen ,  Kangmei Li ,  Ming-Jun Li

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

Abstract: The optical fibers disclosed have single mode and few mode optical transmission for VCSEL-based optical fiber transmission systems. The optical fibers have a cable cutoff wavelength λC of equal to or below 1260 nm thereby defining single mode operation at a wavelength in a first wavelength range greater than 1260 nm and few-mode operation at a wavelength in a second wavelength range from 970 nm and 1070 nm. The mode-field diameter is in the range from 9.3 microns to 10.9 microns at 1550 nm. The optical fibers have an overfilled bandwidth OFL BW of 1 GHz·km to 3 GHz·km at the at least one wavelength in the second wavelength range. VCSEL based optical transmission systems and methods are disclosed that utilize both single core and multicore versions of the optical fiber.

公开(公告)号：US12055753B2

公开(公告)日：2024-08-06

申请号：US18241178

申请日：2023-08-31

Applicant: CORNING INCORPORATED

Inventor： Scott Robertson Bickham ,  Ming-Jun Li ,  Snigdharaj Kumar Mishra ,  Pushkar Tandon ,  Ruchi Sarda Tandon

IPC: G02B6/02 ,  C09D4/00 ,  C09D133/14 ,  C09D175/04 ,  G02B6/028 ,  G02B6/036

CPC classification number: G02B6/02395 ,  C09D4/00 ,  C09D133/14 ,  C09D175/04 ,  G02B6/0281 ,  G02B6/03627 ,  G02B6/0365

Abstract: The optical fiber disclosed has a glass fiber including a core and a cladding. The core comprises silica glass doped with chlorine and having an outer radius r1 between 3.0 microns and 10.0 microns. The cladding has an outer radius r4 not less than 50.0 microns. A primary coating surrounding the cladding has a thickness (r5-r4) between 5.0 microns and 20.0 microns, and an in situ modulus less than 0.30 MPa. A secondary coating surrounding the primary coating has a thickness (r6-r5) between 8.0 microns and 30.0 microns, a Young's modulus greater than 1500 MPa, and a normalized puncture load greater than 3.6×10−3 g/micron2. The optical fiber has a 22-meter cable cutoff wavelength less than 1530 nm, an attenuation at 1550 nm of less than 0.17 dB/km, and a bending loss at 1550 nm of less than 3.0 dB/turn.

公开(公告)号：US12050339B2

公开(公告)日：2024-07-30

申请号：US18201368

申请日：2023-05-24

Applicant: CORNING INCORPORATED

Inventor： Scott Robertson Bickham ,  Dana Craig Bookbinder ,  Ming-Jun Li ,  Snigdharaj Kumar Mishra ,  Pushkar Tandon

IPC: G02B6/02

CPC classification number: G02B6/02042 ,  G02B6/02019

Abstract: A coupled-core multicore optical fiber has a plurality of cores that are doped with alkali metals or chlorine to achieve low attenuation and a large effective area. The cores may be embedded in a common cladding region that may be fluorine doped. The cores may also be doped with chlorine, either with the alkali metals described above or without the alkali metals.

公开(公告)号：US20240150218A1

公开(公告)日：2024-05-09

申请号：US18387631

申请日：2023-11-07

Applicant: CORNING INCORPORATED

Inventor： Paulo Clovis Dainese, JR. ,  Matthew Ryan Drake ,  Richard Michael Fiacco ,  Brian Lee Harper ,  Ming-Jun Li ,  Silver Nyambo ,  Matthew John Rice ,  Jeffery Scott Stone ,  Matthew Artus Tuggle

IPC: C03B37/027 ,  C03B37/012 ,  C03B37/018

CPC classification number: C03B37/02718 ,  C03B37/01214 ,  C03B37/01876 ,  C03B2203/16

Abstract: A method of manufacturing a preform, the method including positioning at least one glass tube in a glass outer cladding to form a preform precursor, the glass tube comprising a first open end and a second open end, forming a preform from the preform precursor, and thermally treating at least one of the preform precursor and the preform. The thermally treating including sealing the first open end and the second open end of the glass tube to form a closed tube and heating and/or cooling the glass tube to manipulate gas pressure within the closed glass tube.

公开(公告)号：US20240036250A1

公开(公告)日：2024-02-01

申请号：US18226324

申请日：2023-07-26

Applicant: CORNING INCORPORATED

Inventor： Paulo Clovis Dainese, JR. ,  Ming-Jun Li ,  Xiaojun Liang ,  Dan Trung Nguyen ,  Ilia Andreyevich Nikulin

IPC: G02B6/02 ,  G02B6/036

CPC classification number: G02B6/02328 ,  G02B6/03622 ,  G02B6/02376 ,  G02B6/02361

Abstract: A hollow-core optical fiber may include a hollow-core extending along a central longitudinal axis of the hollow-core optical fiber; a substrate; a first cladding positioned between the central longitudinal axis and an inner surface of the substrate, the first cladding surrounding the central longitudinal axis of the hollow-core optical fiber and having a Bragg structure configured to provide a photonic bandgap operable to confine an optical signal with a wavelength λ propagating in the hollow-core of the hollow-core optical fiber; and a second cladding positioned between the central longitudinal axis of the hollow-core optical fiber and the inner surface of the substrate, the second cladding surrounding the central longitudinal axis of the hollow-core optical fiber and including a plurality of cladding elements configured to provide an anti-resonant effect at the wavelength λ, the anti-resonant effect operable to confine the optical signal at the wavelength λ in the hollow-core.

公开(公告)号：US20240012202A1

公开(公告)日：2024-01-11

申请号：US18038465

申请日：2021-01-29

Applicant: CORNING INCORPORATED

Inventor： Paulo Clovis Dainese, JR. ,  Kangmei Li ,  Ming-Jun Li ,  Jun Yang

IPC: G02B6/26 ,  G02B1/00 ,  G02B6/02 ,  H04B10/2581

CPC classification number: G02B6/264 ,  G02B1/002 ,  G02B6/02042 ,  H04B10/2581 ,  G02B2207/101

Abstract: An apparatus comprises a fiber input, the fiber input comprising a plurality of input fiber cores receiving a plurality of input optical signals. The apparatus also comprises an optical signal manipulation device that is one of a fiber mode shuffler, a fiber coupler, a power splitter, or a 90-degree optical hybrid. The optical signal manipulation device comprises an input aperture held in spaced relation to the fiber input, an output aperture, and a plurality of metasurfaces that manipulate phase profiles of the plurality optical signals to generate a plurality of output optical signals having a different spatial arrangement than the input optical signal. A fiber output is held in spaced relation to the output aperture such that fiber cores of the fiber output receive the plurality of output optical signals.

公开(公告)号：US20230314276A1

公开(公告)日：2023-10-05

申请号：US18128655

申请日：2023-03-30

Applicant: CORNING INCORPORATED

Inventor： Xin Chen ,  Kangmei Li ,  Ming-Jun Li ,  Snigdharaj Kumar Mishra ,  Simit Mayank Patel

IPC: G01M11/00 ,  H04B10/07

CPC classification number: G01M11/30 ,  H04B10/07

Abstract: A method of categorizing single mode optical fibers, the method including determining one or more fiber properties of an optical fiber, the optical fiber being a single mode optical fiber at an operating wavelength of about 1310 nm. The method further including calculating a peak bandwidth wavelength of the optical fiber based on the one or more fiber properties, comparing the calculated peak bandwidth wavelength with a target peak bandwidth wavelength and based on the comparison, determining if the optical fiber meets a target modal bandwidth.

公开(公告)号：US20230266525A1

公开(公告)日：2023-08-24

申请号：US18137808

申请日：2023-04-21

Applicant: CORNING INCORPORATED

Inventor： Ming-Jun Li ,  Pushkar Tandon

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

CPC classification number: G02B6/0286 ,  G02B6/02009 ,  G02B6/0281 ,  G02B6/0283 ,  G02B6/03622 ,  G02B6/0365 ,  G02B6/02347 ,  G02B6/4403

Abstract: A single mode optical fiber is provided that includes a core region having an outer radius r1 and a maximum relative refractive index Δ1max. The single mode optical fiber further includes a cladding region surrounding the core region, the cladding region includes a depressed-index cladding region, a relative refractive index Δ3 of the depressed-index cladding region increasing with increased radial position. 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, 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 0.005 dB/turn. Additionally, the single mode optical fiber has a mode field diameter of 9.0 microns or greater at 1310 nm wavelength.

公开(公告)号：US11644630B2

公开(公告)日：2023-05-09

申请号：US17671866

申请日：2022-02-15

Applicant: CORNING INCORPORATED

Inventor： Ming-Jun Li ,  Qi Wu

IPC: G02B6/44 ,  G02B6/38

CPC classification number: G02B6/4403 ,  G02B6/3885 ,  G02B6/443

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：US20230132984A1

公开(公告)日：2023-05-04

申请号：US17974135

申请日：2022-10-26

Applicant: Corning Incorporated

Inventor： Nikolaos Pantelis Kladias ,  Ming-Jun Li ,  Bruce Warren Reding ,  Pushkar Tandon ,  Kevin Lee Wasson

IPC: C03B37/025 ,  C03B37/029

Abstract: Optical fiber draw production systems, pressure devices, and methods of fabrication of optical fiber are disclosed. In one embodiment, a method of forming an optical fiber includes heating a preform to draw the optical fiber through a draw furnace, and passing the optical fiber through a pressure device while the optical fiber is still forming, wherein a pressure within the pressure device is greater than an atmospheric pressure.