METHODS FOR FORMING OPTICAL FIBER PREFORMS WITH SELECTIVE DIFFUSION LAYERS
    4.
    发明申请
    METHODS FOR FORMING OPTICAL FIBER PREFORMS WITH SELECTIVE DIFFUSION LAYERS 审中-公开
    用选择性扩散层形成光纤预制件的方法

    公开(公告)号:US20140174133A1

    公开(公告)日:2014-06-26

    申请号:US14107259

    申请日:2013-12-16

    IPC分类号: C03B37/014 G02B6/036

    摘要: Methods for forming optical fiber preforms are disclosed. According to one embodiment, a method for forming an optical fiber preform includes forming a preform core portion from silica-based glass soot. The silica-based glass soot may include at least one dopant species for altering an index of refraction of the preform core portion. A selective diffusion layer of silica-based glass soot may be formed around the preform core portion to form a soot preform. The selective diffusion layer may have an as-formed density greater than the density of the preform core portion. A diffusing species may be diffused through the selective diffusion layer into the preform core portion. The soot preform may be sintered such that the selective diffusion layer has a barrier density which is greater than the as-formed density and the selective diffusion layer prevents diffusion of the at least one dopant species through the selective diffusion layer.

    摘要翻译: 公开了形成光纤预制棒的方法。 根据一个实施例,用于形成光纤预制棒的方法包括从二氧化硅基玻璃烟炱形成预制芯部分。 二氧化硅基玻璃烟炱可以包括至少一种用于改变预制核心部分的折射率的掺杂物种类。 二氧化硅基玻璃烟炱的选择性扩散层可以在预制核心部分周围形成,以形成烟炱预制件。 选择性扩散层可以具有大于预制核心部分的密度的形成密度。 扩散物质可以通过选择性扩散层扩散到预制核心部分中。 烟炱预制件可以烧结,使得选择性扩散层具有大于形成密度的势垒密度,并且选择性扩散层防止至少一种掺杂剂物质通过选择性扩散层的扩散。

    Low bend loss optical fiber
    5.
    发明授权
    Low bend loss optical fiber 有权
    低弯曲损耗光纤

    公开(公告)号:US08666214B2

    公开(公告)日:2014-03-04

    申请号:US13680676

    申请日:2012-11-19

    摘要: One embodiment of a single mode optical fiber includes: a graded index central core region having outer radius r1 and relative refractive index Δ1; a cladding region comprising (i) a first inner cladding region having an outer radius r2 10 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: 单模光纤的一个实施例包括:具有外半径r1和相对折射率Delta1的渐变折射率中心纤芯区域; 包层区域,包括(i)具有外半径r2 <10微米和相对折射率Delta2和0.65 @ r1 / r2 @ 1的第一内包层区域; (ii)和具有外径r3> 10微米并且包括最小相对折射率Delta3的第二内包层区域(即,沟槽),其中所述第二内包层区域具有至少一个具有相对折射率Δδ的区域, 半径越来越大; 和(iii)围绕第二内包层区域并包括相对折射率Delta4的外包层区域,其中Delta1> Delta2> Delta3,Delta3Δ4。

    Bend loss resistant multi-mode fiber
    6.
    发明授权
    Bend loss resistant multi-mode fiber 有权
    弯曲损耗多模光纤

    公开(公告)号:US08588568B2

    公开(公告)日:2013-11-19

    申请号:US13289029

    申请日:2011-11-04

    IPC分类号: G02B6/02

    摘要: A graded index multimode optical fiber comprising: (a) a silica core doped with germania, and at least one co-dopant, comprising one of P2O5 or F or B2O3, the core extending to outermost core radius, r1 and having a dual alpha, α1; (b) a low index inner cladding surrounding the core and off-set from said core; (c) an outer cladding surrounding and in contact with the inner cladding, such that at least the region of the inner cladding off-set from said core has a lower refractive index than the outer cladding. The center germania concentration at the centerline, CGe1, is greater than or equal to 0, and an outermost germania concentration in the core CGe2, at r1 is greater than or equal to 0. The core has a center co-dopant concentration at the centerline, Cc-d1, greater than or equal to 0, and an outermost co-dopant concentration Cc-d2, at r1, wherein Cc-d2 is greater than or equal to 0.

    摘要翻译: 一种分级折射率多模光纤,包括:(a)掺杂有氧化锗的二氧化硅芯,以及包含P2O5或F或B2O3之一的至少一种共掺杂物,所述芯延伸到最外芯半径r1并具有双重α, alpha1; (b)围绕所述芯并偏离所述芯的低折射率内包层; (c)包围并与内包层接触的外包层,使得至少从所述芯偏离的内包层的区域具有比外包层更低的折射率。 中心线CGe1处的中心锗浓度大于或等于0,核心CGe2在r1处的最外面的锗浓度大于或等于0.核心在中心线处具有中心共掺杂剂浓度 ,Cc-d1,大于或等于0,最外侧辅助掺杂浓度Cc-d2在r1处,其中Cc-d2大于或等于0。

    LOW BEND LOSS OPTICAL FIBER
    7.
    发明申请
    LOW BEND LOSS OPTICAL FIBER 有权
    低弯损失光纤

    公开(公告)号:US20130136405A1

    公开(公告)日:2013-05-30

    申请号:US13485028

    申请日:2012-05-31

    IPC分类号: G02B6/028

    摘要: One embodiment of a single mode optical fiber includes: a graded index central core region having outer radius r1 and refractive index Δ1; a cladding region comprising (i) a first inner cladding region having an outer radius r2 10 microns and comprising a minimum refractive index Δ3, wherein said second cladding region has at least one region with a refractive index delta that becomes more negative with increasing radius; and (iii) an outer cladding region surrounding the inner cladding region and comprising refractive index Δ4, wherein Δ1>Δ2>Δ3, Δ3

    摘要翻译: 单模光纤的一个实施例包括:具有外半径r1和折射率Delta1的渐变折射率中心纤芯区域; 包层区域,包括(i)具有外半径r2 <10微米和折射率Delta2和0.65 @ r1 / r2 @ 1的第一内包层区域; (ii)和具有外半径r3> 10微米并且包括最小折射率Delta3的第二内包层区域,其中所述第二包层区域具有至少一个具有随着半径增加而变得更负的折射率δ的区域; 和(iii)围绕内包层区域并包括折射率Delta4的外包层区域,其中Delta1> Delta2> Delta3,Delta3Δ4。

    APPARATUS FOR MIXING VAPORIZED PRECURSOR AND GAS AND METHOD THEREFOR
    8.
    发明申请
    APPARATUS FOR MIXING VAPORIZED PRECURSOR AND GAS AND METHOD THEREFOR 有权
    用于混合蒸发前体和气体及其方法的装置

    公开(公告)号:US20130011319A1

    公开(公告)日:2013-01-10

    申请号:US13176804

    申请日:2011-07-06

    IPC分类号: C01B33/12 B01J19/00

    摘要: An apparatus for mixing a vaporized precursor with a gas for producing silica particles is provided. The apparatus includes a mixer housing, a precursor delivery chamber having an output in communication with the mixer housing for delivering a vaporized precursor in the mixer housing, and an oxidizing gas delivery chamber having an output in communication with the mixer housing for delivering an oxidizing gas to be mixed with the vaporized precursor. The apparatus further includes a flashback member disposed within the mixer housing and between the output of the precursor delivery chamber and the output of the oxidizing gas delivery chamber. The flashback member is located at a minimum distance from the output of the oxidizing gas delivery chamber defined by Lminimum (cm)=0.453 U (Re)−0.5567, wherein U is the flow rate in cm/sec of precursor and Re is the flow Reynolds number. The flashback member may include a tapered surface on at least one side to reduce recirculation of vaporized gas.

    摘要翻译: 提供了一种用于混合蒸发的前体与用于生产二氧化硅颗粒的气体的装置。 该装置包括混合器壳体,前体输送室,其具有与混合器壳体连通的输出,用于将混合器壳体内的蒸发前体输送;以及氧化气体输送室,具有与混合器壳体连通的输出,用于输送氧化气体 与蒸发的前体混合。 该装置还包括设置在混合器壳体内并且在前体输送室的输出和氧化气体输送室的输出之间的回火构件。 回闪构件位于距离最小(cm)= 0.453U(Re)-0.5567所限定的氧化气体输送室的输出的最小距离处,其中U是前体的流速(cm / sec),Re是流量 雷诺数。 闪回构件可以在至少一侧上包括锥形表面以减少气化气体的再循环。

    LASER-PROCESSED GRIN LENSES AND OPTICAL INTERFACE DEVICES AND ASSEMBLIES USING SAME
    9.
    发明申请
    LASER-PROCESSED GRIN LENSES AND OPTICAL INTERFACE DEVICES AND ASSEMBLIES USING SAME 有权
    激光加工的磨光镜片和光学接口设备及使用相同的组件

    公开(公告)号:US20120321249A1

    公开(公告)日:2012-12-20

    申请号:US13495073

    申请日:2012-06-13

    IPC分类号: G02B3/00 B05D3/06 G02B6/32

    摘要: Laser-processed gradient-index (GRIN) lenses and optical interface devices and assemblies that utilize the laser-processed GRIN lenses are disclosed. A GRIN lens assembly includes a cylindrical central section having a GRIN index profile, planar front and back surfaces, an outer surface, and a diameter D1 where 200 micrometers≦D1≦420 micrometers. An annular cladding of outer diameter D2 surrounds the central section outer surface and has front and back annular surfaces and a constant or a varying refractive index. One or both of the front and back annular surfaces may be curved. An optical fiber is optically coupled to the central section at the planar back surface. An optical interface device is formed by operably supporting at least one GRIN lens assembly with a support member. An optical interface assembly is formed by interfacing two optical interface devices.

    摘要翻译: 公开了使用激光加工的GRIN透镜的激光加工梯度折射率(GRIN)透镜和光学接口装置和组件。 GRIN透镜组件包括具有GRIN折射率分布,平面前表面和后表面的圆柱形中心部分,外表面和直径D1,其中200微米&amp; D1; n1E; 420微米。 外径为D2的环形包层围绕中心部分外表面并且具有前后环形表面和恒定或变化的折射率。 前后环形表面中的一个或两个可以是弯曲的。 光纤在平面后表面处光耦合到中心部分。 光学接口装置通过可操作地支撑至少一个具有支撑构件的GRIN透镜组件形成。 通过接口两个光接口装置形成光接口组件。