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    SINGLE MODE OPTICAL FIBER WITH CHLORINE DOPED CORE AND LOW BEND LOSS
    42.
    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
    44.
    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.

    LOW BEND LOSS OPTICAL FIBER
    47.
    发明申请
    LOW BEND LOSS OPTICAL FIBER 有权

    公开(公告)号：US20170285260A1

    公开(公告)日：2017-10-05

    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.

    Ion exchanged glasses via non-error function compressive stress profiles
    48.
    发明授权
    Ion exchanged glasses via non-error function compressive stress profiles 有权

    公开(公告)号：US09718727B2

    公开(公告)日：2017-08-01

    申请号：US14874849

    申请日：2015-10-05

    Applicant: CORNING INCORPORATED

    Inventor： Dana Craig Bookbinder ,  Richard Michael Fiacco ,  Timothy Michael Gross ,  Stephan Lvovich Logunov

    IPC: C03C21/00 ,  C03C23/00

    CPC classification number: C03C21/002 ,  C03C23/007 ,  Y10T428/315

    Abstract: Glasses with compressive stress profiles that allow higher surface compression and deeper depth of layer (DOL) than is allowable in glasses with stress profiles that follow the complementary error function at a given level of stored tension. In some instances, a buried layer or local maximum of increased compression, which can alter the direction of cracking systems, is present within the depth of layer. Theses compressive stress profiles are achieved by a three step process that includes a first ion exchange step to create compressive stress and depth of layer that follows the complimentary error function, a heat treatment at a temperature below the strain point of the glass to partially relax the stresses in the glass and diffuse larger alkali ions to a greater depth, and a re-ion-exchange at short times to re-establish high compressive stress at the surface.

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