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    Evanescent optical couplers employing polymer-clad fibers and tapered ion-exchanged optical waveguides
    2.
    发明授权
    Evanescent optical couplers employing polymer-clad fibers and tapered ion-exchanged optical waveguides 有权

    公开(公告)号：US10690858B2

    公开(公告)日：2020-06-23

    申请号：US15907647

    申请日：2018-02-28

    Applicant: CORNING INCORPORATED

    Inventor： Lars Martin Otfried Brusberg ,  Sergey Anatol'evich Kuchinsky ,  Aramais Robert Zakharian

    IPC: G02B6/30 ,  G02B6/12

    Abstract: The evanescent optical coupler is constituted by an IOX waveguide and an optical fiber. The IOX waveguide is formed in a glass substrate and has a tapered section that runs in an axial direction. The IOX waveguide supports a waveguide fundamental mode having an waveguide effective index NW0 that varies within a range ΔNW0 as a function of the axial direction. The IOX waveguide can also support a few higher-order modes. The optical fiber supports a fiber fundamental mode having a fiber effective index NF0 that falls within the waveguide effective index range ΔNW0 of the waveguide fundamental mode of the tapered section of the IOX waveguide. A portion of the optical fiber is interfaced with the tapered section of the IOX waveguide to define a coupling region over which evanescent optical coupling occurs between the optical fiber and the IOX waveguide.

    EVANESCENT OPTICAL COUPLERS EMPLOYING POLYMER-CLAD FIBERS AND TAPERED ION-EXCHANGED OPTICAL WAVEGUIDES
    6.
    发明申请
    EVANESCENT OPTICAL COUPLERS EMPLOYING POLYMER-CLAD FIBERS AND TAPERED ION-EXCHANGED OPTICAL WAVEGUIDES 审中-公开

    公开(公告)号：US20190265416A1

    公开(公告)日：2019-08-29

    申请号：US15907647

    申请日：2018-02-28

    Applicant: CORNING INCORPORATED

    Inventor： Lars Martin Otfried Brusberg ,  Sergey Anatol'evich Kuchinsky ,  Aramais Robert Zakharian

    IPC: G02B6/30

    Abstract: The evanescent optical coupler is constituted by an IOX waveguide and an optical fiber. The IOX waveguide is formed in a glass substrate and has a tapered section that runs in an axial direction. The IOX waveguide supports a waveguide fundamental mode having an waveguide effective index NW0 that varies within a range ΔNW0 as a function of the axial direction. The IOX waveguide can also support a few higher-order modes. The optical fiber supports a fiber fundamental mode having a fiber effective index NF0 that falls within the waveguide effective index range ΔNW0 of the waveguide fundamental mode of the tapered section of the IOX waveguide. A portion of the optical fiber is interfaced with the tapered section of the IOX waveguide to define a coupling region over which evanescent optical coupling occurs between the optical fiber and the IOX waveguide.

    MODE-SELECTIVE OPTICAL FIBER COUPLERS
    8.
    发明公开
    MODE-SELECTIVE OPTICAL FIBER COUPLERS 审中-公开

    公开(公告)号：US20240159966A1

    公开(公告)日：2024-05-16

    申请号：US18382255

    申请日：2023-10-20

    Applicant: CORNING INCORPORATED

    Inventor： Sergey Anatol'evich Kuchinsky ,  Dmitri Vladislavovich Kuksenkov ,  Ming-Jun Li ,  Vladimir Nikolaevich Nazarov ,  Aramais Robert Zakharian

    IPC: G02B6/14 ,  G02B6/02

    CPC classification number: G02B6/14 ,  G02B6/02071 ,  G02B6/021

    Abstract: In embodiments, a mode selective optical fiber coupler may include a first propagation waveguide and a second propagation waveguide joined along a coupling length L. The first propagation waveguide and the second propagation waveguide may be tapered from an input face and an output face of the coupler to a midpoint of the coupler. An LP01 mode of an optical signal with a wavelength of 800-950 nm coupled into the first propagation waveguide propagates through the first propagation waveguide and is emitted from the first propagation waveguide. An LP01 loss of the coupler at the output face is less than 1.0 dB. An LP11 mode of the optical signal coupled into the first propagation waveguide is cross-coupled to the second propagation waveguide and is emitted from the second propagation waveguide. An LP11 loss of the coupler at the output face is less than 1.5 dB.

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