公开(公告)号：US20250093574A1

公开(公告)日：2025-03-20

申请号：US18809457

申请日：2024-08-20

Applicant: CORNING INCORPORATED

Inventor： Rostislav Radiyevich Khrapko ,  Ming-Jun Li ,  Stephan Lvovich Logunov ,  Craig Daniel Nie

IPC: G02B6/02

Abstract: An optical fiber that includes a silica core and a cladding surrounding the core is disclosed, the optical fiber having a low attenuation. In embodiments, the optical fiber has an attenuation at 1550 nm of about 0.1420 dB/km. Furthermore, the diameter of the core may be larger than a fundamental mode field diameter of the optical fiber at a wavelength of 1550 nm. In embodiments, the core is doped with an alkali dopant.

公开(公告)号：US12222528B2

公开(公告)日：2025-02-11

申请号：US17688142

申请日：2022-03-07

Applicant: CORNING INCORPORATED ,  UV PARTNERS, INC.

Inventor： David W Baarman ,  Boyd Vern Hunter ,  Ming-Jun Li ,  Xiao Li ,  Stephan Lvovich Logunov

IPC: G02B5/02 ,  A61L2/00

Abstract: Disclosed herein are embodiments of an illuminator for disinfecting a surface. The surface defines a first plane. The illuminator includes a line emitter configured to emit light in a continuous line along at least a portion of at least one edge of the surface. The light has a peak wavelength in a range of 100 nm to 400 nm. The illuminator also includes a curved reflector surface and an exit aperture defining a second plane transverse to the first plane. The line emitter is positioned between the curved reflector surface and the exit aperture, and the curved reflector surface is configured to redirect the light from the line emitter through the exit aperture across the surface.

公开(公告)号：US20250026675A1

公开(公告)日：2025-01-23

申请号：US18769986

申请日：2024-07-11

Applicant: CORNING INCORPORATED

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

IPC: C03B37/029

Abstract: A method of forming an optical fiber, the method including heating a forming region of the optical fiber preform within a pressure device while exposing the forming region to a total pressure of about 500 atm or greater, directing the optical fiber preform in a downstream direction along a process pathway to form the optical fiber, and traversing the optical fiber through an aperture of a nozzle to maintain the total pressure of about 500 atm or greater within the pressure device.

公开(公告)号：US20240393527A1

公开(公告)日：2024-11-28

申请号：US18662275

申请日：2024-05-13

Applicant: CORNING INCORPORATED

Inventor： Donald Arthur Clark ,  Matthew Ryan Drake ,  Yunfeng Gu ,  Ming-Jun Li ,  Joseph Edward McCarthy ,  Weijun Niu

IPC: G02B6/02

Abstract: An optical fiber includes a glass core, a glass cladding surrounding and in direct contact with the glass core, and a coating surrounding and in direct contact with the glass cladding. The coating includes three layers, a first high-modulus coating layer having a Young's modulus greater than 500 MPa, a second high-modulus coating layer having a Young's modulus greater than 500 MPa, and a low-modulus coating layer having a Young's modulus between about 0.20 MPa and 5 MPa. The coating may have the first high-modulus coating layer as the inner layer, the low-modulus coating layer as the intermediate layer, and the second high-modulus coating layer as the outer layer. Alternatively, the coating may have the low-modulus coating layer as the inner layer, first high-modulus coating layer as the intermediate layer, and the second high-modulus coating layer as the outer layer.

公开(公告)号：US11952305B2

公开(公告)日：2024-04-09

申请号：US17490720

申请日：2021-09-30

Applicant: CORNING INCORPORATED

Inventor： Ravindra Kumar Akarapu ,  Joel Patrick Carberry ,  David Alan Deneka ,  Steven Akin Dunwoody ,  Kenneth Edward Hrdina ,  John Michael Jewell ,  Yuanjie Jiang ,  Nikolaos Pantelis Kladias ,  Ming-Jun Li ,  Barada Kanta Nayak ,  Dale Robert Powers ,  Chunfeng Zhou ,  Vincent Matteo Tagliamonti ,  Christopher Scott Thomas

IPC: C03B37/027 ,  C03B37/029

CPC classification number: C03B37/02727 ,  C03B37/029 ,  C03B2205/55 ,  C03B2205/56

Abstract: In some embodiments, a method for processing an optical fiber includes: drawing an optical fiber through a draw furnace, conveying the optical fiber through a flame reheating device downstream from the draw furnace, wherein the flame reheating device comprises one or more burners each comprising: a body having a top surface and an opposing bottom surface, an opening within the body extending from the top surface through the body to the bottom surface, wherein the optical fiber passes through the opening, and one or more gas outlets within the body; and igniting a flammable gas provided by the one or more gas outlets to form a flame encircling the optical fiber passing through the opening, wherein the flame heats the optical fiber by at least 100 degrees Celsius at a heating rate exceeding 10,000 degrees Celsius/second.

公开(公告)号：US20240036248A1

公开(公告)日：2024-02-01

申请号：US18225409

申请日：2023-07-24

Applicant: CORNING INCORPORATED

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

IPC: G02B6/02 ,  G02B6/032

CPC classification number: G02B6/02328 ,  G02B6/032

Abstract: A hollow-core optical fiber may include a hollow core extending along a central longitudinal axis of the fiber; a substrate; a plurality of first cladding elements spaced apart from each other and positioned between the hollow core and the substrate, each of the first cladding elements extending in a direction parallel to the central longitudinal axis of the fiber, each of the first cladding elements including a first capillary; and a plurality of second cladding elements spaced apart from each other and positioned between the hollow core and the substrate, each of the second cladding elements extending in a direction parallel to the central longitudinal axis of the fiber, each of the second cladding elements including a second capillary. Each of the first cladding elements directly contacts the inner surface of the substrate, and none of the second cladding elements directly contacts the inner surface of the substrate.

公开(公告)号：US11782207B2

公开(公告)日：2023-10-10

申请号：US17381756

申请日：2021-07-21

Applicant: CORNING INCORPORATED

Inventor： Scott Robertson Bickham ,  Matthew Ryan Drake ,  Shandon Dee Hart ,  Ming-Jun Li ,  Joseph Edward McCarthy ,  Weijun Niu ,  Pushkar Tandon

IPC: G02B6/02

CPC classification number: G02B6/02014 ,  G02B6/02395

Abstract: An optical fiber is provided that includes a core region, a cladding region having a radius less than about 62.5 microns; a polymer coating comprising a high-modulus layer and a low-modulus layer, wherein a thickness of the low-modulus inner coating layer is in a range of 4 microns to 20 microns, the modulus of the low-modulus inner coating layer is less than or equal to about 0.35 MPa, a thickness of the high-modulus coating layer is in a range of 4 microns to 20 microns, the modulus of the high-modulus inner coating layer is greater than or equal to about 1.6 GPa, and wherein a puncture resistance of the optical fiber is greater than 20 g, and wherein a microbend attenuation penalty of the optical fiber is less than 0.03 dB/km, and wherein an outer diameter of the coated optical fiber is less than or equal to 175 microns.

公开(公告)号：US11675122B2

公开(公告)日：2023-06-13

申请号：US17318510

申请日：2021-05-12

Applicant: CORNING INCORPORATED

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

IPC: G02B6/02 ,  G02B6/036 ,  C03C25/1065 ,  C03C25/50 ,  G02B6/028

CPC classification number: G02B6/02395 ,  G02B6/03627 ,  C03C25/1065 ,  C03C25/50 ,  G02B6/02009 ,  G02B6/0286

Abstract: The present disclosure provides optical fibers with an impact-resistant coating system. The fibers feature low attenuation. The coating system includes a primary coating and a secondary coating. The primary coating and secondary coating have reduced thickness to provide low-diameter fibers without sacrificing protection. The primary coating has high tear strength and is resistant to damage caused by mechanical force. The secondary coating has high puncture resistance. The outer diameter of the optical fiber is less than or equal to 190 μm.

公开(公告)号：US20230040327A1

公开(公告)日：2023-02-09

申请号：US17875807

申请日：2022-07-28

Applicant: CORNING INCORPORATED

Inventor： Richard Michael Fiacco ,  Ming-Jun Li ,  Stephan Lvovich Logunov ,  Jeffery Scott Stone ,  Matthew Artus Tuggle

IPC: G02B6/02 ,  G02B6/032

Abstract: An anti-resonant hollow core optical fiber preform that includes an outer cladding, a plurality of structural tubes, and a central support tube. The outer cladding has a length, a central longitudinal axis, and a hollow interior. The plurality of structural tubes are disposed within the hollow interior of the outer cladding, the plurality of structural tubes each having a length that extends the length of the outer cladding. And the central support tube is disposed within the hollow interior of the outer cladding such that the plurality of structural tubes are disposed radially outward of the central support tube, the central support tube having a length that extends along the central longitudinal axis of the outer cladding. Furthermore, the length of the central support tube is less than the length of the outer cladding.

公开(公告)号：US11467335B2

公开(公告)日：2022-10-11

申请号：US16930811

申请日：2020-07-16

Applicant: CORNING INCORPORATED

Inventor： Xin Chen ,  Kangmei Li ,  Ming-Jun Li

IPC: G02B6/02 ,  G02B6/036 ,  H04B10/66 ,  G02B6/028 ,  H04B10/25 ,  H04B10/50

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 wavelengths greater than 1260 nm and few-mode operation at wavelengths in a wavelength range from 800 nm and 1100 nm. The mode-field diameter is in the range from 8.0 microns to 10.1 microns at 1310 nm. The optical fibers have an overfilled bandwidth OFL BW of at least 1 GHz·km at at least one wavelength in the wavelength range. The optical fibers have a single-step or two-step core and can have a trench refractive index profile. VCSEL based optical transmission systems and methods are disclosed that utilize both single core and multicore versions of the optical fiber.