中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

328 records (took 0.038 seconds)

    NEUTRALIZING GAS SYSTEM FOR FURNACE
    41.
    发明申请
    NEUTRALIZING GAS SYSTEM FOR FURNACE 审中-公开

    公开(公告)号：US20190062208A1

    公开(公告)日：2019-02-28

    申请号：US16100922

    申请日：2018-08-10

    Applicant: Corning Incorporated

    Inventor： Dana Craig Bookbinder ,  Richard Michael Fiacco ,  Pushkar Tandon

    IPC: C03C25/68

    Abstract: A method of preparing an optical preform, comprises the steps of: positioning an optical preform comprising silica within a cavity of a furnace; passing an etchant gas into the furnace and at least one of through an open channel defined in the optical preform and around the optical preform; and passing a neutralizing gas into the cavity of the furnace, the neutralizing gas configured to neutralize the etchant gas.

    Multimode optical fibers for attenuators
    42.
    发明授权
    Multimode optical fibers for attenuators 有权

    公开(公告)号：US10162109B2

    公开(公告)日：2018-12-25

    申请号：US15881239

    申请日：2018-01-26

    Applicant: Corning Incorporated

    Inventor： Kevin Wallace Bennett ,  Scott Robertson Bickham ,  Dana Craig Bookbinder ,  Robert Arnold Knowlton ,  Ming-Jun Li ,  Pushkar Tandon

    IPC: G02B6/028 ,  G02B6/036

    Abstract: According to embodiments, an optical fiber may include a core portion comprising a radius rC, a centerline CL, a numerical aperture NA greater than or equal to 0.15 and less than or equal to 0.25, a graded relative refractive index profile having a maximum relative refractive index ΔCmax and an α value greater than or equal to 1 and less than or equal to 3. The core portion may include an up-dopant with a graded concentration from the radius rC to the centerline CL and an attenuation dopant with a constant concentration from the centerline CL of the core portion to the radius rC of the core portion. The optical fiber is multi-moded for wavelengths of light within a range from 800 nm to 1350 nm and an attenuation of the optical fiber wavelengths between 800 nm and 1000 nm is greater than or equal to 0.5 dB/m.

    SINGLE MODE OPTICAL FIBER WITH CHLORINE DOPED CORE AND LOW BEND LOSS
    46.
    发明申请
    SINGLE MODE OPTICAL FIBER WITH CHLORINE DOPED CORE AND LOW BEND LOSS 审中-公开

    公开(公告)号：US20180031762A1

    公开(公告)日：2018-02-01

    申请号：US15660024

    申请日：2017-07-26

    Applicant: Corning Incorporated

    Inventor： Dana Craig Bookbinder ,  Ming-Jun Li ,  Snigdharaj Kumar Mishra ,  Pushkar Tandon

    IPC: G02B6/02 ,  G02B6/44 ,  G02B6/036

    Abstract: Single mode optical fibers with a chlorine doped core and a cladding having a fluorine doped trench region are disclosed. The optical fiber includes a chlorine doped silica core having a core alpha α≧10, a core radius r1 and maximum refractive index delta Δ1max % and a Cl concentration≧0.9 wt %. The optical fiber also has a cladding surrounding the core, the cladding having an inner and an outer cladding. The inner cladding has first and second cladding regions. The optical fiber has mode field diameter at 1310 nm of larger than 9 microns, a cable cutoff wavelength of ≦1260 nm, a zero dispersion wavelength λ0, where 1300 nm≦λ0≦1324 nm, and bend loss at 1550 nm for a 20 mm mandrel of less than 0.5 dB/turn.

    Low bend loss optical fiber
    48.
    发明授权
    Low bend loss optical fiber 有权

    公开(公告)号：US09851501B2

    公开(公告)日：2017-12-26

    申请号：US15463142

    申请日：2017-03-20

    Applicant: Corning Incorporated

    Inventor： Dana Craig Bookbinder ,  Ming-Jun Li ,  Snigdharaj Kumar Mishra ,  Pushkar Tandon

    IPC: G02B6/036 ,  G02B6/02

    CPC classification number: G02B6/03672 ,  G02B6/02009 ,  G02B6/02014 ,  G02B6/02395 ,  G02B6/0365

    Abstract: Disclosed herein are optical waveguide fibers comprising: (I) a core comprising an outer radius r1, a maximum refractive index delta percent Δ1 max and core alpha, α, of larger than 5; and (II) a cladding surrounding the core, the cladding comprising: (i) an inner cladding region having outer radius r2 and refractive index delta percent Δ2, wherein Δ1max>Δ2; (ii) a trench region surrounding the inner cladding region, the trench region having an outer radius, r3 where r3≧10 microns and refractive index delta percent Δ3; and (iii) an outer cladding region having chlorine concentration of ≧1.2 wt. % surrounding the trench region and comprising refractive index delta percent Δ4, wherein Δ1max>Δ4 and Δ2>Δ3, and Δ4>Δ3 and wherein the difference between Δ4 and Δ3 is ≧0.12 percent.

Patent Agency Ranking