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    MULTIMODE OPTICAL FIBER TRANSMISSION SYSTEM INCLUDING SINGLE MODE FIBER
    32.
    发明申请
    MULTIMODE OPTICAL FIBER TRANSMISSION SYSTEM INCLUDING SINGLE MODE FIBER 有权
    多模光纤传输系统，包括单模光纤

    公开(公告)号：US20150333829A1

    公开(公告)日：2015-11-19

    申请号：US14703099

    申请日：2015-05-04

    Applicant: Corning Incorporated

    Inventor： Xin Chen ,  Ming-Jun Li

    IPC: H04B10/2581 ,  H04B10/60 ,  H04B10/50 ,  G02B6/02

    CPC classification number: G02B6/02047 ,  G02B6/0288 ,  G02B6/0365 ,  G02B6/268 ,  H04B10/2581 ,  H04B10/50 ,  H04B10/60

    Abstract: Some embodiments of the disclosure relate to an optical transmission system that operates at a wavelength in the range from 950 nm to 1600 nm and that employs a single-mode optical transmitter and an optical receiver optically coupled to respective ends of a multimode fiber designed for 850 nm multimode operation. The optical transmission system also employs at least one single mode fiber situated within the optical pathway between the optical transmitter and the receiver and coupled to the multimode fiber.

    Abstract translation: 本公开的一些实施例涉及在950nm至1600nm范围内的波长下操作的光传输系统，并且采用光学耦合到设计为850的多模光纤的相应端的单模光发射机和光接收机 nm多模操作。 光传输系统还采用位于光发射机和接收机之间的光学路径内的至少一个单模光纤并耦合到多模光纤。

    MULTIMODE OPTICAL FIBER SYSTEMS WITH ADJUSTABLE CHROMATIC MODAL DISPERSION COMPENSATION
    33.
    发明申请
    MULTIMODE OPTICAL FIBER SYSTEMS WITH ADJUSTABLE CHROMATIC MODAL DISPERSION COMPENSATION 有权
    具有可调节色度分散补偿的多模光纤系统

    公开(公告)号：US20140086578A1

    公开(公告)日：2014-03-27

    申请号：US13833769

    申请日：2013-03-15

    Applicant: Corning Incorporated

    Inventor： Scott Robertson Bickham ,  Xin Chen ,  Ming-Jun Li ,  Dale Robert Powers ,  Richard Stephen Vodhanel

    IPC: H04B10/2513 ,  G02B6/26 ,  H04B10/079

    CPC classification number: H04B10/2513 ,  G02B6/02261 ,  G02B6/0288 ,  G02B6/03627 ,  G02B6/268 ,  H04B10/07951 ,  H04B10/2507 ,  H04B10/2581

    Abstract: Multimode optical fiber systems with adjustable chromatic modal dispersion compensation are disclosed, wherein the system includes a VCSEL light source and primary and secondary optically coupled multimode optical fibers. Because the VCSEL light source has a wavelength spectrum that radially varies, its use with the primary multimode optical fiber creates chromatic modal dispersion that reduces bandwidth. The compensating multimode optical fiber is designed to have a difference in alpha parameter relative to the primary multimode optical fiber of −0.1≦Δα≦−0.9. This serves to create a modal delay opposite to the chromatic modal dispersion. The compensation is achieved by using a select length of the compensating multimode optical fiber optically coupled to an output end of the primary multimode optical fiber. The compensating multimode optical fiber can be configured to be bend insensitive.

    Abstract translation: 公开了具有可调色散色散补偿的多模光纤系统，其中该系统包括VC​​SEL光源和一次和二次光耦合多模光纤。 由于VCSEL光源具有径向变化的波长光谱，因此其与主多模光纤的使用产生减少带宽的色模色散。 补偿多模光纤被设计为相对于-0.1＆nlE;＆Dgr;α＆nlE; -0.9的主多模光纤具有不同的α参数。 这用于产生与色模色散相反的模态延迟。 通过使用光耦合到主多模光纤的输出端的补偿多模光纤的选择长度来实现补偿。 补偿多模光纤可以被配置为弯曲不敏感。

    Tension-based methods for forming bandwidth tuned optical fibers for bi-modal optical data transmission
    34.
    发明授权
    Tension-based methods for forming bandwidth tuned optical fibers for bi-modal optical data transmission 有权

    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.

    METHOD OF SELECTING OPTIMIZED MULTIMODE OPTICAL FIBERS
    35.
    发明公开
    METHOD OF SELECTING OPTIMIZED MULTIMODE OPTICAL FIBERS 审中-公开

    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.

    FEW MODE OPTICAL FIBERS WITH REDUCED MODE COUPLING AND LOW BIREFRINGENCE
    36.
    发明公开
    FEW MODE OPTICAL FIBERS WITH REDUCED MODE COUPLING AND LOW BIREFRINGENCE 审中-公开

    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.

    METHOD OF SELECTING OPTIMIZED MULTIMODE OPTICAL FIBERS
    38.
    发明申请
    METHOD OF SELECTING OPTIMIZED MULTIMODE OPTICAL FIBERS 有权

    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.

    Optical fibers for single mode and few mode VCSEL-based optical fiber transmission systems
    39.
    发明授权
    Optical fibers for single mode and few mode VCSEL-based optical fiber transmission systems 有权

    公开(公告)号：US11099321B2

    公开(公告)日：2021-08-24

    申请号：US16747179

    申请日：2020-01-20

    Applicant: CORNING INCORPORATED

    Inventor： Xin Chen ,  Ming-Jun Li

    IPC: G02B6/028 ,  G02B6/036 ,  G02B6/42

    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 840 nm and 1060 nm. The mode-field diameter is in the range from 8.6 microns to 11 microns at 1550 nm or 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 the at least one wavelength in the second wavelength range. The optical fibers have a gradient-index 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.

    METHOD FOR MANUFACTURING MULTIMODE OPTICAL FIBERS
    40.
    发明申请
    METHOD FOR MANUFACTURING MULTIMODE OPTICAL FIBERS 有权

    公开(公告)号：US20210208332A1

    公开(公告)日：2021-07-08

    申请号：US17120909

    申请日：2020-12-14

    Applicant: CORNING INCORPORATED

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

    IPC: G02B6/028 ,  G02B6/036 ,  C03B37/027 ,  C03B37/025

    Abstract: A method of manufacturing a multimode optical fiber includes specifying a peak wavelength λP for the multimode optical fiber. The peak wavelength λP corresponds to a wavelength at which the multimode optical fiber has a maximum bandwidth. The multimode optical fiber comprises a core and a cladding surrounding and directly adjacent to the core. The core has a radius r1 and a maximum relative refractive index Δ1,MAX>0. The cladding comprises a depressed-index region having a minimum relative refractive index Δ3,MIN

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