利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

30 条记录 (耗时 0.049 秒)

    Low bend loss optical fiber
    3.
    发明授权
    Low bend loss optical fiber 有权
    低弯曲损耗光纤

    公开(公告)号：US08953917B2

    公开(公告)日：2015-02-10

    申请号：US13680641

    申请日：2012-11-19

    申请人： George Edward Berkey ,  Dana Craig Bookbinder ,  Steven Bruce Dawes ,  Ming-Jun Li ,  Pushkar Tandon ,  Ji Wang

    发明人： George Edward Berkey ,  Dana Craig Bookbinder ,  Steven Bruce Dawes ,  Ming-Jun Li ,  Pushkar Tandon ,  Ji Wang

    IPC分类号： G02B6/036 ,  G02B6/028

    CPC分类号： G02B6/028 ,  G02B6/0286 ,  G02B6/03627 ,  G02B6/03638 ,  G02B6/0365

    摘要： According to some embodiments a single mode fiber includes: a germania doped central core region having outer radius r1 and relative refractive index Δ1; and a cladding region comprising (i) a first inner cladding region having an outer radius r2>6 microns and relative refractive index Δ2 and 0.3≦r1/r2≦0.85; and (ii) a second inner cladding region having an outer radius r3>9 microns and comprising a minimum relative refractive index Δ3, wherein said second inner cladding region has at least one region with a relative refractive index delta that becomes more negative with increasing radius; and (iii) an outer cladding region surrounding the second inner cladding region and comprising relative refractive index Δ4, wherein Δ1>Δ2>Δ3, Δ3

    摘要翻译： 根据一些实施例，单模光纤包括：具有外半径r1和相对折射率＆Dgr; 1的掺杂锗的中心芯区域; 包括区域，其包括（i）具有外半径r2> 6微米的第一内包层区域和相对折射率＆lt; Dgr; 2和0.3＆amp; nlE; r1 / r2＆nlE; 0.85; 和（ii）外半径r3> 9微米并且包括最小相对折射率＆lt; Dgr; 3的第二内包层区域，其中所述第二内包层区域具有至少一个相对折射率Δδ的区域变得更为负， 半径增加 4，一种包围第二内包层区域的外包层区，包括相对折射率＆Dgr; 4，其中＆Dgr; 1＆Dgr; 2＆Dgr; 3，＆Dgr; 3＆

    LOW BEND LOSS OPTICAL FIBER
    4.
    发明申请
    LOW BEND LOSS OPTICAL FIBER 有权
    低弯损失光纤

    公开(公告)号：US20130136407A1

    公开(公告)日：2013-05-30

    申请号：US13680641

    申请日：2012-11-19

    申请人： George Edward Berkey ,  Dana Craig Bookbinder ,  Steven Bruce Dawes ,  Ming-Jun Li ,  Pushkar Tandon ,  Ji Wang

    发明人： George Edward Berkey ,  Dana Craig Bookbinder ,  Steven Bruce Dawes ,  Ming-Jun Li ,  Pushkar Tandon ,  Ji Wang

    IPC分类号： G02B6/028

    CPC分类号： G02B6/028 ,  G02B6/0286 ,  G02B6/03627 ,  G02B6/03638 ,  G02B6/0365

    摘要： According to some embodiments a single mode fiber includes: a germania doped central core region having outer radius r1 and relative refractive index Δ1; and a cladding region comprising (i) a first inner cladding region having an outer radius r2>6 microns and relative refractive index Δ2 and 0.3≦r1/r2≦0.85; and (ii) a second inner cladding region having an outer radius r3>9 microns and comprising a minimum relative refractive index Δ3, wherein said second inner cladding region has at least one region with a relative refractive index delta that becomes more negative with increasing radius; and (iii) an outer cladding region surrounding the inner cladding region and comprising relative refractive index Δ4, wherein Δ1>Δ2>Δ3, Δ3

    摘要翻译： 根据一些实施例，单模光纤包括：具有外半径r1和相对折射率Delta1的掺杂锗的中心芯区域; 和包括（i）具有外半径r2> 6微米的第一内包层区域和相对折射率Delta2和0.3 @ r1 / r2为0.85的包层区域; 和（ii）外半径r3> 9微米并且包括最小相对折射率Delta 3的第二内包层区域，其中所述第二内包层区域具有至少一个具有随着半径增加而变得更负的相对折射率Δ的区域 ; 和（iii）围绕内包层区域的外包层区域，并且包括相对折射率Delta4，其中Delta1> Delta2> Delta3，Delta3Δ4。

    Methods for Producing Optical Fiber Preforms with Low Index Trenches
    5.
    发明申请
    Methods for Producing Optical Fiber Preforms with Low Index Trenches 有权
    用于生产具有低指数倾斜度的光纤预制件的方法

    公开(公告)号：US20130000840A1

    公开(公告)日：2013-01-03

    申请号：US13173777

    申请日：2011-06-30

    申请人： Steven Bruce Dawes ,  Robert A. Knowlton ,  Pushkar Tandon ,  Ji Wang

    发明人： Steven Bruce Dawes ,  Robert A. Knowlton ,  Pushkar Tandon ,  Ji Wang

    IPC分类号： B32B37/00

    CPC分类号： C03B37/01211 ,  C03B37/01446 ,  C03B37/01453 ,  C03B37/01466 ,  C03B2201/12 ,  C03B2203/22 ,  C03B2207/36 ,  C03B2207/66 ,  C03B2207/70

    摘要： Methods for forming optical fiber preforms with low-index trenches are disclosed. According to one embodiment, the method includes depositing silica-based glass soot on a bait rod to form a low-index trench region of the optical fiber preform. The silica-based glass soot is deposited such that the low-index trench region has a first density. Thereafter a barrier layer having a second density greater than the first density is formed around the low-index trench region. Therafter, an overclad region is deposited around the barrier layer. The bait rod is then removed from a central channel of the trench-overclad assembly. A separate core assembly is inserted into the central channel. A down-dopant gas is then directed through the central channel of the trench-overclad assembly as the trench-overclad assembly is heated to dope the low-index trench region. The barrier layer prevents diffusion of the down-dopant from the low-index trench region into the overclad region.

    摘要翻译： 公开了用于形成具有低折射率沟槽的光纤预制棒的方法。 根据一个实施方案，该方法包括在诱饵棒上沉积二氧化硅基玻璃烟炱以形成光纤预制棒的低折射率沟槽区域。 沉积二氧化硅基玻璃烟炱，使得低折射率沟槽区域具有第一密度。 此后，在低折射率沟槽区域周围形成具有大于第一密度的第二密度的阻挡层。 Therafter，一个外包层区域沉积在阻挡层周围。 然后将诱饵棒从沟槽外包装组件的中心通道移除。 单独的芯组件插入中心通道。 然后，随着沟槽外包层组件被加热以掺杂低折射率沟槽区域，下掺杂剂气体被引导通过沟槽外包层组件的中心通道。 阻挡层防止下掺杂剂从低折射率沟槽区域扩散到外包层区域中。