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    SOURCE OF SUPERCONTINUUM RADIATION AND MICROSTRUCTURED FIBER
    11.
    发明公开
    SOURCE OF SUPERCONTINUUM RADIATION AND MICROSTRUCTURED FIBER 审中-公开

    公开(公告)号：US20230204854A1

    公开(公告)日：2023-06-29

    申请号：US18167203

    申请日：2023-02-10

    Applicant: NKT PHOTONICS A/S

    Inventor： Jens Kristian LYNGSØE ,  Christian JACOBSEN

    IPC: G02B6/02 ,  G02B21/06

    CPC classification number: G02B6/02357 ,  G02B6/02347 ,  G02B21/06 ,  G02F1/3528

    Abstract: A microstructured optical fiber including a core region and a cladding region which surrounds the core region. The cladding region includes a plurality of cladding features within a cladding background material, wherein the cladding region includes an inner cladding region with at least one inner ring of cladding features and an outer cladding region with at least three outer cladding rings of outer cladding features. The inner cladding features have a first characteristic diameter and the outer cladding region includes a plurality of outer cladding features having a characteristic diameter smaller than the first characteristic diameter. The first characteristic diameter is at least about 10% larger than an average diameter of the outer cladding features and the core region has a diameter of at least about 2 μm. A cascade optical fiber with at least one fiber as described, as well as a source of optical supercontinuum generation.

    HOLLOW CORE OPTICAL FIBER AND A LASER SYSTEM
    12.
    发明申请
    HOLLOW CORE OPTICAL FIBER AND A LASER SYSTEM 有权

    公开(公告)号：US20220011501A1

    公开(公告)日：2022-01-13

    申请号：US17213653

    申请日：2021-03-26

    Applicant: NKT Photonics A/S

    Inventor： Jens Kristian LYNGSØE ,  Christian JAKOBSEN ,  Mattia MICHIELETTO

    IPC: G02B6/02

    Abstract: A hollow core photonic crystal fiber (PCF) including an outer cladding region and seven hollow tubes surrounded by the outer cladding region. Each of the hollow tubes is fused to the outer cladding to form a ring defining an inner cladding region and a hollow core region surrounded by the inner cladding region. The hollow tubes are not touching each other, but are arranged with distance to adjacent hollow tubes. The hollow tubes each have an average outer diameter d2 and an average inner diameter d1, wherein d1/d2 is equal to or larger than about 0.8, such as equal to or larger than about 0.85, such as equal to or larger than about 0.9. Also, a laser system.

    HOLLOW CORE OPTICAL FIBER AND A LASER SYSTEM
    16.
    发明公开
    HOLLOW CORE OPTICAL FIBER AND A LASER SYSTEM 审中-公开

    公开(公告)号：US20230273366A1

    公开(公告)日：2023-08-31

    申请号：US18301648

    申请日：2023-04-17

    Applicant: NKT Photonics A/S

    Inventor： Jens Kristian LYNGSØE ,  Christian JAKOBSEN ,  Mattia MICHIELETTO

    IPC: G02B6/02

    CPC classification number: G02B6/02328 ,  G02B6/02338 ,  G02B6/02366 ,  G02B6/02371 ,  G02B6/4296

    Abstract: A hollow core photonic crystal fiber (PCF) including an outer cladding region and seven hollow tubes surrounded by the outer cladding region. Each of the hollow tubes is fused to the outer cladding to form a ring defining an inner cladding region and a hollow core region surrounded by the inner cladding region. The hollow tubes are not touching each other but are arranged with distance to adjacent hollow tubes. The hollow tubes each have an average outer diameter d2 and an average inner diameter d1, wherein d1/d2 is equal to or larger than about 0.8, such as equal to or larger than about 0.85, such as equal to or larger than about 0.9. Also, a laser system.

    HOLLOW CORE OPTICAL FIBER AND A LASER SYSTEM
    18.
    发明申请
    HOLLOW CORE OPTICAL FIBER AND A LASER SYSTEM 审中-公开

    公开(公告)号：US20190011634A1

    公开(公告)日：2019-01-10

    申请号：US16064751

    申请日：2016-12-22

    Applicant: NKT Photonics A/S

    Inventor： Jens Kristian LYNGSØE ,  Christian JAKOBSEN ,  Mattia MICHIELETTO

    IPC: G02B6/02 ,  G02B6/42

    Abstract: A hollow core photonic crystal fiber (PCF) comprising an outer cladding region and 7 hollow tubes surrounded by the outer cladding region. Each of the hollow tubes is fused to the outer cladding to form a ring defining an inner cladding region and a hollow core region surrounded by the inner cladding region. The hollow tubes are not touching each other, but are arranged with distance to adjacent hollow tubes. The hollow tubes each have an average outer diameter d2 and an average inner diameter d1, wherein d1/d2 is equal to or larger than about 0.8, such as equal to or larger than about 0.85, such as equal to or larger than about 0.9.Also a laser system is disclosed.

    Optical Fiber with Microstructured Core
    19.
    发明申请
    Optical Fiber with Microstructured Core 审中-公开

    公开(公告)号：US20170336698A1

    公开(公告)日：2017-11-23

    申请号：US15513769

    申请日：2015-09-03

    Applicant: NKT Photonics A/S

    Inventor： Jens Kristian LYNGSØE ,  Thomas ALKESKJOLD

    IPC: G02F1/365 ,  G02B6/02 ,  G02F1/35

    CPC classification number: G02F1/365 ,  G02B6/02295 ,  G02B6/02338 ,  G02B6/02366 ,  G02F2001/3528

    Abstract: A micro-structured optical fiber suitable for supercontinuum generation, a preform therefor, and a method of production thereof and a supercontinuum light source. The optical fiber includes a core microstructured length section Lcm, which includes a micro-structured core region having at least a first region forming a central part of the core region and a second region surrounding the first region; and a cladding surrounding the core region; wherein the first and second regions are of a first and second silica material, respectively, which differs with respect to composition, and wherein the core region in at least a length part of the core microstructured length section Lcm has a cross sectional diameter Dcm perpendicular to the longitudinal axis which is about 8 μm or less.

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