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    Optical fiber
    62.
    发明授权
    Optical fiber 失效
    光纤

    公开(公告)号：US07386210B2

    公开(公告)日：2008-06-10

    申请号：US11538334

    申请日：2006-10-03

    Applicant: Julia A. Farroni ,  Adrian Carter ,  Kanishka Tankala

    Inventor： Julia A. Farroni ,  Adrian Carter ,  Kanishka Tankala

    IPC: G02B6/00

    CPC classification number: G02B6/02114 ,  C03B37/01217 ,  C03B37/01231 ,  C03B2201/10 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/34 ,  C03B2201/42 ,  C03B2203/23 ,  C03B2203/31 ,  G02B6/024

    Abstract: An optical fiber comprises a photosensitive core that includes a concentration of a first material that increases the refractive index of the core and a concentration of a second material that is other than boron and that reduces the refractive index of the core. A cladding is disposed about the core for tending to confine light to the core. The fiber also includes at least one longitudinally extending region having a thermal coefficient of expansion that is different from the thermal coefficient of expansion of the cladding. In another embodiment, the core includes a concentration of germanium and a concentration of boron. Also disclosed is a polarization-maintaining double-clad (PM DC) fiber comprising one or both of at least one circular axially extending stress inducing region(s) and an inner cladding comprising a circular outer perimeter. Fibers according to the invention can include a rare earth dopant for emitting light of a selected wavelength responsive to being pumped by pump light of a pump wavelength that is different than the selected wavelength.

    Abstract translation: 光纤包括感光芯，其包括提高芯的折射率的第一材料的浓度和不同于硼的第二材料的浓度，并降低芯的折射率。 围绕芯部布置包层以倾向于将光限制在芯部上。 纤维还包括具有不同于包层的热膨胀系数的热膨胀系数的至少一个纵向延伸区域。 在另一个实施方案中，芯包括锗的浓度和硼的浓度。 还公开了一种包括至少一个圆形轴向延伸的应力诱导区域和包含圆形外周边的内包层中的一个或两个的偏振保持双包层（PMDC）光纤。 根据本发明的纤维可以包括用于发射选定波长的光的稀土掺杂剂，其响应于通过不同于所选波长的泵浦波长的泵浦光泵浦。

    Use of amorphous carbon film as a hardmask in the fabrication of optical waveguides
    66.
    发明授权
    Use of amorphous carbon film as a hardmask in the fabrication of optical waveguides 失效
    在制造光波导中使用无定形碳膜作为硬掩模

    公开(公告)号：US07079740B2

    公开(公告)日：2006-07-18

    申请号：US10799147

    申请日：2004-03-12

    Applicant: Laurent Vandroux ,  Herve Monchoix

    Inventor： Laurent Vandroux ,  Herve Monchoix

    IPC: G02B6/10

    CPC classification number: C03B19/143 ,  C03B19/1469 ,  C03B2201/10 ,  C03B2201/24 ,  C03B2201/28 ,  C03B2201/31 ,  Y02P40/57

    Abstract: Methods are provided for forming optical devices, such as waveguides, with minimal defect formation. In one aspect, the invention provides a method for forming a waveguide structure on a substrate surface including forming a cladding layer on the substrate surface, forming a core layer on the cladding layer, depositing an amorphous carbon hardmask on the core layer, forming a patterned photoresist layer on the amorphous carbon hardmask, etching the amorphous carbon hardmask, and etching the core material.

    Abstract translation: 提供了用于形成具有最小缺陷形成的光学器件（例如波导）的方法。 一方面，本发明提供了一种在基板表面上形成波导结构的方法，包括在基板表面上形成包覆层，在包层上形成芯层，在芯层上沉积无定形碳硬掩模，形成图案化 无定形碳硬掩模上的光致抗蚀剂层，蚀刻无定形碳硬掩模，并蚀刻芯材。

    Optical fiber preform having barrier layers for hydroxyl (OH) radicals
    67.
    发明授权
    Optical fiber preform having barrier layers for hydroxyl (OH) radicals 失效
    具有羟基（OH）自由基的屏障层的光纤预制棒

    公开(公告)号：US07008696B2

    公开(公告)日：2006-03-07

    申请号：US10465242

    申请日：2003-06-19

    Applicant: Sung-Jin Kim ,  Sung-Koog Oh

    Inventor： Sung-Jin Kim ,  Sung-Koog Oh

    IPC: B32B17/02

    CPC classification number: C03C13/045 ,  C03B37/01807 ,  C03B2201/10 ,  C03B2201/28 ,  C03B2203/22 ,  Y10T428/315

    Abstract: Disclosed is an optical-fiber preform having barrier layers to hydroxyl radicals, the optical-fiber preform comprising: a quartz tube in the form of a cylinder shape serving as a substrate for forming the optical-fiber preform; a first barrier layer for preventing hydroxyl radicals from permeating the optical-fiber preform and deposited onto the inner surface of the quartz tube; a second barrier layer having a permeation coefficient higher than the first barrier layer and deposited onto the first barrier layer; a third barrier layer having a permeation coefficient lower than the second barrier layer and deposited onto the second barrier layer; and, a core layer being located at the center of the optical-fiber preform.

    Abstract translation: 公开了一种具有羟基自由基阻挡层的光纤预制棒，该光纤预制棒包括：作为用于形成光纤预制棒的基底的圆筒形状的石英管; 用于防止羟基自由基渗透到光纤预制件并沉积到石英管的内表面上的第一阻挡层; 第二阻挡层，其透过系数高于第一阻挡层并沉积在第一阻挡层上; 第三阻挡层，其透过系数低于第二阻挡层并沉积到第二阻挡层上; 并且芯层位于光纤预制棒的中心。

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