公开(公告)号：US12151964B2

公开(公告)日：2024-11-26

申请号：US16936991

申请日：2020-07-23

Applicant: CORNING INCORPORATED

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

IPC: C03B37/025 ,  G02B6/02 ,  G02B6/028 ,  G02B6/036

Abstract: Methods of forming a bandwidth-tuned optical fiber for short-length data transmission systems include establishing a relationship between a change Δτ in a modal delay τ, a change ΔT in a draw tension T and a change Δλ in a BM wavelength λ of light in a BM wavelength range from 840 nm and 1100 nm for a test optical fiber drawn from a preform and that supports BM operation at the BM wavelength. The methods also include drawing from either the preform or a closely related preform the bandwidth-tuned optical fiber by setting the draw tension based on the established relationships of the aforementioned parameters so that the bandwidth-tuned optical fiber has a target bandwidth greater than 2 GHz·km at a target wavelength within the BM wavelength range.

公开(公告)号：US20240004152A1

公开(公告)日：2024-01-04

申请号：US18212315

申请日：2023-06-21

Applicant: CORNING INCORPORATED

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

IPC: G02B6/44

CPC classification number: G02B6/4429

Abstract: A few mode optical fiber that includes a core and a cladding surrounding the core, the cladding comprising at least one stress member. The core and the cladding support the propagation and transmission of at least LP01, LP11a, and LP11b modes at one or more wavelengths. Furthermore, the LP01, LP11a, and LP11b modes each have a birefringence of about 5.7×10−6 or less at 1310 nm. And an effective index difference between the LP11a and LP11b modes is about 3.0×10−5 or greater.

公开(公告)号：US20230110293A1

公开(公告)日：2023-04-13

申请号：US17945568

申请日：2022-09-15

Applicant: CORNING INCORPORATED

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

IPC: G01M11/02

Abstract: A method of categorizing a group of multimode optical fibers, the method including comparing an effective modal bandwidth of a first multimode optical fiber with a first threshold, the first multimode optical fiber being in a group of multimode optical fibers meeting a first OM-standard and the first threshold being an effective modal bandwidth of the first multimode optical fiber. The method further including categorizing the first multimode optical fiber as meeting OM functional requirements of a second OM-standard if the effective modal bandwidth of the first multimode optical fiber is equal to or above the first threshold, wherein the second OM-standard is higher than the first OM-standard.

公开(公告)号：US20230085821A1

公开(公告)日：2023-03-23

申请号：US17795928

申请日：2021-01-29

Applicant: CORNING INCORPORATED ,  President and Fellows of Harvard College

Inventor： Federico Capasso ,  Wei-Ting Chen ,  Paulo Clovis Dainese, Jr. ,  Kangmei Li ,  Ming-Jun Li ,  Jaewon Oh ,  Jun Yang

IPC: G02B6/293 ,  G02B1/00

Abstract: Systems, devices, and techniques for performing wavelength division multiplexing or demultiplexing using one or more metamaterials in an optical communications systems are described. An optical device may be configured to shift one or more phase profiles of an optical signal using one or more stages of metamaterials to multiplex or demultiplex wavelengths of optical signals. The optical device may be an example of a stacked design with two or more stages of metamaterials stacked on top of one another. The optical device may be an example of a folded design that reflects optical signals between different stages of metamaterials.

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：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：US11327223B2

公开(公告)日：2022-05-10

申请号：US17215434

申请日：2021-03-29

Applicant: CORNING INCORPORATED

Inventor： Xin Chen ,  Kangmei Li ,  Ming-Jun Li ,  Anping Liu ,  Simit Mayank Patel ,  Jeffery Scott Stone

IPC: G02B6/028 ,  G02B6/036 ,  H04B10/2581 ,  H04B10/50 ,  H04B10/69

Abstract: A multimode optical fiber having a core region. The core region includes silica, has an outer radius r1, and has a maximum relative refractive index of about 1.5% or less. Additionally, the multimode optical fiber is configured to have an effective bandwidth of about 4.7 GHz-Km or greater for an excited portion of the core region that has a diameter greater than 50 microns, the effective bandwidth being at a wavelength that is within a range of between about 800 and about 1370 nm.

公开(公告)号：US20210325599A1

公开(公告)日：2021-10-21

申请号：US17215434

申请日：2021-03-29

Applicant: CORNING INCORPORATED

Inventor： Xin Chen ,  Kangmei Li ,  Ming-Jun Li ,  Anping Liu ,  Simit Mayank Patel ,  Jeffery Scott Stone

IPC: G02B6/028 ,  G02B6/036 ,  H04B10/2581 ,  H04B10/50 ,  H04B10/69

Abstract: A multimode optical fiber having a core region. The core region includes silica, has an outer radius r1, and has a maximum relative refractive index of about 1.5% or less. Additionally, the multimode optical fiber is configured to have an effective bandwidth of about 4.7 GHz-Km or greater for an excited portion of the core region that has a diameter greater than 50 microns, the effective bandwidth being at a wavelength that is within a range of between about 800 and about 1370 nm.

公开(公告)号：US20210032153A1

公开(公告)日：2021-02-04

申请号：US16936991

申请日：2020-07-23

Applicant: CORNING INCORPORATED

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

IPC: C03B37/025 ,  G02B6/028 ,  G02B6/02 ,  G02B6/036

Abstract: Methods of forming a bandwidth-tuned optical fiber for short-length data transmission systems include establishing a relationship between a change Δτ in a modal delay τ, a change ΔT in a draw tension T and a change Δλ in a BM wavelength λ of light in a BM wavelength range from 840 nm and 1100 nm for a test optical fiber drawn from a preform and that supports BM operation at the BM wavelength. The methods also include drawing from either the preform or a closely related preform the bandwidth-tuned optical fiber by setting the draw tension based on the established relationships of the aforementioned parameters so that the bandwidth-tuned optical fiber has a target bandwidth greater than 2 GHz·km at a target wavelength within the BM wavelength range.