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    Methods of making single mode optical fibers with reduced bend sensitivity and catastrophic bend loss
    11.
    发明申请
    Methods of making single mode optical fibers with reduced bend sensitivity and catastrophic bend loss 有权
    制造具有降低弯曲灵敏度和灾难性弯曲损耗的单模光纤的方法

    公开(公告)号：US20120159995A1

    公开(公告)日：2012-06-28

    申请号：US13374205

    申请日：2011-12-15

    Applicant: Peter Ingo Borel ,  David John DiGiovanni ,  John Michael Fini ,  Poul Kristensen

    Inventor： Peter Ingo Borel ,  David John DiGiovanni ,  John Michael Fini ,  Poul Kristensen

    IPC: C03B37/027 ,  C03B37/018

    CPC classification number: C03B37/018 ,  C03B37/01211 ,  C03B37/01807 ,  C03B2201/12 ,  C03B2203/22 ,  C03B2203/23 ,  G02B6/02342 ,  G02B6/03672 ,  G02B6/03677 ,  G02B6/03683 ,  G02B6/03688 ,  G02B6/14 ,  Y02P40/57

    Abstract: An optical fiber that is relatively insensitive to bend loss and alleviates the problem of catastrophic bend loss comprises a core region and a cladding region configured to support and guide the propagation of light in a fundamental transverse mode. The cladding region includes (i) an outer cladding region, (ii) an annular pedestal (or ring) region, (iii) an annular inner trench region, and (iv) an annular outer trench region. The pedestal region and the outer cladding region each have a refractive index relatively close to that of the outer cladding region. In order to suppress HOMs the pedestal region is configured to resonantly couple at least one (unwanted) transverse mode of the core region (other than the fundamental mode) to at least one transverse mode of the pedestal region. In a preferred embodiment, the fiber is configured so that, at a signal wavelength of approximately 1550 nm, its bend loss is no more than about 0.1 dB/turn at bend radius of 5 mm and is no more than about 0.02 dB/turn at a bend radius of 10 mm. In addition, in one embodiment, the core region also includes an inner core region and an annular outer core (or shelf) region surrounding the inner core region. The outer core region extends radially a distance of less than 9 μm from the fiber axis. In another embodiment, the inner trench region includes an annular inner portion and an annular outer (or step) portion surrounding said inner portion. The refractive index of the step portion is greater than that of the inner portion. In a preferred embodiment, both of the foregoing features of the core region and the inner trench region are incorporated in the fiber. Also described are multi-tube fabrication techniques for making such fibers.

    Abstract translation: 对弯曲损耗相对不敏感并减轻灾难性弯曲损耗的问题的光纤包括芯区域和被配置为支撑和引导基本横向模式的光的传播的包层区域。 包层区域包括（i）外包层区域，（ii）环形基座（或环）区域，（iii）环形内沟槽区域和（iv）环形外沟槽区域。 基座区域和外部包层区域的折射率相对于外部包层区域的折射率相对接近。 为了抑制HOM，基座区域被配置为将芯区域（基本模式除外）的至少一个（不需要的）横向模式谐振地耦合到基座区域的至少一个横向模式。 在优选实施例中，光纤被配置为使得在大约1550nm的信号波长处，其弯曲半径在5mm处的弯曲损耗不超过约0.1dB /匝，并且在不超过约0.02dB /匝 弯曲半径为10mm。 此外，在一个实施例中，芯区域还包括内芯区域和围绕内芯区域的环形外芯（或搁架）区域。 外芯区域从纤维轴径向延伸小于9μm的距离。 在另一个实施例中，内沟槽区域包括环形内部部分和围绕所述内部部分的环形外（或台阶）部分。 台阶部分的折射率大于内部部分的折射率。 在一个优选实施例中，芯部区域和内部沟槽区域的前述特征都包含在纤维中。 还描述了用于制造这种纤维的多管制造技术。

    Optical fiber configuration for dissipating stray light
    12.
    发明授权
    Optical fiber configuration for dissipating stray light 有权
    用于消散杂散光的光纤配置

    公开(公告)号：US07760978B2

    公开(公告)日：2010-07-20

    申请号：US12231947

    申请日：2008-09-08

    Applicant: David John DiGiovanni ,  Yoshihiro Emori ,  Michael Fishteyn ,  Clifford Headley

    Inventor： David John DiGiovanni ,  Yoshihiro Emori ,  Michael Fishteyn ,  Clifford Headley

    IPC: G02B6/02 ,  G02B6/26

    CPC classification number: G02B6/2804 ,  G02B6/02395 ,  G02B6/0365

    Abstract: An optical transmission fiber is formed to include a relatively low-index, relatively thin outer cladding layer disposed underneath the protective polymer outer coating. Stray light propagating along an inner cladding layer(s) within the fiber will be refracted into the thin outer cladding (by proper selection of refractive index values). The thin dimension of the outer cladding layer allows for the stray light to “leak” into the outer coating in a controlled, gradual manner so as to minimize heating of the coating associated with the presence of stray light. The inventive fiber may also be bent to assist in the movement of stray light into the coating.

    Abstract translation: 光传输光纤被形成为包括设置在保护性聚合物外涂层下方的相对较低折射率的较薄的外包层。 沿着纤维内的内包层传播的杂散光将被折射入薄的外包层（通过适当地选择折射率值）。 外包层的薄的尺寸允许杂散光以受控的逐渐的方式“泄漏”到外涂层中，以便最小化与杂散光的存在相关联的涂层的加热。 本发明的纤维也可以被弯曲以帮助杂散光移动到涂层中。

    Method of applying a precursor to an assembled fiber bundle and fusing the bundle together
    15.
    发明授权
    Method of applying a precursor to an assembled fiber bundle and fusing the bundle together 有权
    将前体施加到组装的纤维束并将束熔合在一起的方法

    公开(公告)号：US06397636B1

    公开(公告)日：2002-06-04

    申请号：US09315631

    申请日：1999-05-20

    Applicant: David John DiGiovanni ,  Mikhail Fishteyn

    Inventor： David John DiGiovanni ,  Mikhail Fishteyn

    IPC: C03B37028

    CPC classification number: G02B6/2835 ,  G02B6/2856

    Abstract: Optical fiber bundles having high optical throughput can be produced with relatively high yield if gaps between fibers are eliminated by application of a particle-containing glass precursor material, exemplarily fumed silica in an aqueous medium. Manufacture of optical fiber bundles that comprise two or more fibers that each comprise a substantially planar surface (with the planar surfaces facing each other) is improved by application of a particle-free glass precursor material, e.g., partially hydrolysed tetramethyl orthosilicate, to the fiber bundle. After drying of the applied glass precursor material the fiber bundle is heated to fuse the fibers together.

    Abstract translation: 具有高光学通过量的光纤束可以通过施加含水玻璃前体材料（例如在水性介质中的热解二氧化硅）来消除纤维之间的间隙而以相对高的产率生产。 通过将无颗粒玻璃前体材料（例如部分水解的原硅酸甲酯）施加到纤维上来改进包含两个或更多个纤维的光纤束的制造，每个纤维各自包括基本平坦的表面（平面彼此面对） 束。 在施加的玻璃前体材料干燥之后，加热纤维束以将纤维熔合在一起。

    Reduced Bend Sensitivity and Catastrophic Bend Loss In Single Mode Optical Fibers and Method of Making Same
    18.
    发明申请
    Reduced Bend Sensitivity and Catastrophic Bend Loss In Single Mode Optical Fibers and Method of Making Same 有权
    降低弯曲灵敏度和单模光纤中的灾难性弯曲损耗及其制作方法

    公开(公告)号：US20090290841A1

    公开(公告)日：2009-11-26

    申请号：US12472522

    申请日：2009-05-27

    Applicant: Peter Ingo Borel ,  David John DiGiovanni ,  John Michael Fini ,  Poul Kristensen

    Inventor： Peter Ingo Borel ,  David John DiGiovanni ,  John Michael Fini ,  Poul Kristensen

    IPC: G02B6/036

    CPC classification number: C03B37/018 ,  C03B37/01211 ,  C03B37/01807 ,  C03B2201/12 ,  C03B2203/22 ,  C03B2203/23 ,  G02B6/02342 ,  G02B6/03672 ,  G02B6/03677 ,  G02B6/03683 ,  G02B6/03688 ,  G02B6/14 ,  Y02P40/57

    Abstract: An optical fiber that is relatively insensitive to bend loss and alleviates the problem of catastrophic bend loss comprises a core region and a cladding region configured to support and guide the propagation of light in a fundamental transverse mode. The cladding region includes (i) an outer cladding region, (ii) an annular pedestal (or ring) region, (iii) an annular inner trench region, and (iv) an annular outer trench region. The pedestal region and the outer cladding region each have a refractive index relatively close to that of the outer cladding region. In order to suppress HOMs the pedestal region is configured to resonantly couple at least one (unwanted) transverse mode of the core region (other than the fundamental mode) to at least one transverse mode of the pedestal region. In a preferred embodiment, the fiber is configured so that, at a signal wavelength of approximately 1550 nm, its bend loss is no more than about 0.1 dB/turn at bend radius of 5 mm and is no more than about 0.02 dB/turn at a bend radius of 10 mm. In addition, in one embodiment, the core region also includes an inner core region and an annular outer core (or shelf) region surrounding the inner core region. The outer core region extends radially a distance of less than 9 μm from the fiber axis. In another embodiment, the inner trench region includes an annular inner portion and an annular outer (or step) portion surrounding said inner portion. The refractive index of the step portion is greater than that of the inner portion. In a preferred embodiment, both of the foregoing features of the core region and the inner trench region are incorporated in the fiber. Also described are multi-tube fabrication techniques for making such fibers.

    Abstract translation: 对弯曲损耗相对不敏感并减轻灾难性弯曲损耗的问题的光纤包括芯区域和被配置为支撑和引导基本横向模式的光的传播的包层区域。 包层区域包括（i）外包层区域，（ii）环形基座（或环）区域，（iii）环形内沟槽区域和（iv）环形外沟槽区域。 基座区域和外部包层区域的折射率相对于外部包层区域的折射率相对接近。 为了抑制HOM，基座区域被配置为将芯区域（基本模式除外）的至少一个（不需要的）横向模式谐振地耦合到基座区域的至少一个横向模式。 在优选实施例中，光纤被配置为使得在大约1550nm的信号波长处，其弯曲半径在5mm处的弯曲损耗不超过约0.1dB /匝，并且在不超过约0.02dB /匝 弯曲半径为10mm。 此外，在一个实施例中，芯区域还包括内芯区域和围绕内芯区域的环形外芯（或搁架）区域。 外芯区域从纤维轴径向延伸小于9μm的距离。 在另一个实施例中，内沟槽区域包括环形内部部分和围绕所述内部部分的环形外（或台阶）部分。 台阶部分的折射率大于内部部分的折射率。 在一个优选实施例中，芯部区域和内部沟槽区域的前述特征都包含在纤维中。 还描述了用于制造这种纤维的多管制造技术。

    Mode-field resizing in optical fibers
    19.
    发明申请
    Mode-field resizing in optical fibers 审中-公开
    光纤中的模场调整大小

    公开(公告)号：US20080267560A1

    公开(公告)日：2008-10-30

    申请号：US11796892

    申请日：2007-04-30

    Applicant: David John DiGiovanni ,  Clifford Everill Headley ,  Andrew Douglas Yablon

    Inventor： David John DiGiovanni ,  Clifford Everill Headley ,  Andrew Douglas Yablon

    IPC: G02B6/26

    CPC classification number: G02B6/14 ,  G02B6/2856 ,  H01S3/06754

    Abstract: An all-fiber mode-field resizer comprises a first optical fiber configured to propagate signal light in a predetermined transverse mode along a longitudinal axis from a first input/output (I/O) port to a second I/O port. The first fiber is configured to have a first effective mode-field area and a first core V-parameter proximate the first I/O port and to have a second effective mode-field area and a second core V-parameter proximate the second I/O port. The second mode-field area is greater than the first mode-field area, and the second V-parameter is less than the first V-parameter. In one embodiment, the second V-parameter is less than approximately 1.3, and preferably less than 1.0. In another embodiment, the first V-parameter is greater than approximately 1.8. In yet another embodiment, our mode-field resizer is incorporated into a tapered fiber bundle.

    Abstract translation: 全光纤模场调幅器包括第一光纤，其被配置为沿着纵轴从第一输入/输出（I / O）端口传输到预定横向模式的信号光从第一输入/输出（I / O）端口传送到第二I / O端口。 第一光纤被配置为具有靠近第一I / O端口的第一有效模场区域和第一核心V参数，并且具有靠近第二I / O端口的第二有效模场区域和第二核心V参数， O端口 第二模场区域大于第一模场区域，第二V参数小于第一V参数。 在一个实施例中，第二V参数小于约1.3，优选小于1.0。 在另一个实施例中，第一V参数大于大约1.8。 在另一个实施例中，我们的模场调整器被并入到锥形纤维束中。

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