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    METHOD OF CONTROLLING FLUORINE DOPING IN SOOT PREFORMS
    136.
    发明公开
    METHOD OF CONTROLLING FLUORINE DOPING IN SOOT PREFORMS 审中-公开
    VERFAHREN ZUR REGELUNG DER FLUORDOTIERUNG VON RUSSVORFORMEN

    公开(公告)号：EP1181253A4

    公开(公告)日：2004-12-15

    申请号：EP00914850

    申请日：2000-03-07

    Applicant: CORNING INC

    Inventor： DELISO EVELYN M ,  LACY CLAUD E ,  MARLATT DEBORAH L

    IPC: G02B6/00 ,  C03B37/012 ,  C03B37/014 ,  C03C3/06

    CPC classification number: C03C3/06 ,  C03B37/01211 ,  C03B37/01446 ,  C03B2201/12 ,  C03B2203/26 ,  C03C2201/12 ,  C03C2201/28 ,  C03C2201/31 ,  C03C2201/32 ,  C03C2201/40 ,  C03C2201/42 ,  C03C2203/40 ,  C03C2203/46

    Abstract: A method for controlling the refractive index achieved using a fluorine dopant gas, wherein CF4 is employed as the dopant gas, and the soot preform (12) is doped using the CF4 for a time and temperature sufficient to result in a decrease in fluorine dopant nearest the surface which is in contact with the CF4 gas. Preform (12) is mounted on handle (11) which is fused to handle (14) and the assembly (20) is heated in a furnace muffle (15). The CF4 flows through furnace muffle (15), as indicated by arrows (17), and preferably contains a diluent gas such as helium. An optional centerflow gas (16) may be flowed through the centerline hole (18) in several embodiments, which consists of helium. The end of the porous preform (12) may optionally include a capillary tube (19) to prevent the muffle gases (17) from entering the preform.

    Abstract translation: 控制使用氟掺杂剂气体实现的折射率的方法，其中使用CF 4作为掺杂剂气体，并且使用CF 4掺杂烟灰预制体足够的时间和温度，以使得最接近表面的氟掺杂剂减少 与CF4气体接触。

    Article comprising silica-based glass containing aluminum and phosphorus
    138.
    发明公开
    Article comprising silica-based glass containing aluminum and phosphorus 失效
    Gegenstand auf Basis vonKieselsäuregas，enthaltend Aluminum und Phosphor。

    公开(公告)号：EP0328315A1

    公开(公告)日：1989-08-16

    申请号：EP89301055.3

    申请日：1989-02-03

    Applicant: AT&T Corp.

    Inventor： Lemaire, Paul Joseph ,  MacChesney, John Burnette ,  Simpson, Jay Richard

    IPC: C03C13/04

    CPC classification number: G02B6/03611 ,  C03B37/01807 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2203/30 ,  C03C3/06 ,  C03C13/04 ,  C03C2201/28 ,  C03C2201/32 ,  C03C2203/44 ,  G02B6/03627 ,  G02B6/105

    Abstract: it has been discovered that fused silica doped with approximately equimolar amounts of Al and P, has advantageous properties that make such co-doped glass useful in a variety of applications, including optical fiber, especially polarization-maintaining optical fiber, and planar waveguides in optical and opto-electronic devices. In particular, such co-doped fused silica can have a refractive index that is lower than, or at least not significantly greater than, that of pure fused silica, even though both Al and P individually are known up-dopants for silica. The co-doped fused silica also can have a relatively low working temperature, while otherwise maintaining many of the desirable properties of fused silica, e.g., chemical inertness and relatively low coefficient of thermal expansion.

    Abstract translation: 已经发现，掺杂有大约等摩尔量的Al和P的熔融石英具有有利的性质，使得这种共掺杂玻璃可用于各种应用，包括光纤，特别是偏振保持光纤，以及光学中的平面波导 和光电器件。 特别地，这种共掺杂的熔融二氧化硅可以具有比纯熔融二氧化硅低的折射率，或至少不显着大于纯熔融石英的折射率，即使Al和P分别是二氧化硅的已知掺杂剂。 共掺杂的熔融二氧化硅也可以具有相对低的工作温度，而另外保持熔融二氧化硅的许多所需性能，例如化学惰性和相对低的热膨胀系数。

    YTTERBIUM-DOPED OPTICAL FIBER
    139.
    发明公开
    YTTERBIUM-DOPED OPTICAL FIBER 审中-公开
    YTTERBIUMDOTIERTE GLASFASER

    公开(公告)号：EP2348587A4

    公开(公告)日：2017-04-26

    申请号：EP09824607

    申请日：2009-11-04

    Applicant: FUJIKURA LTD

    Inventor： ICHII KENTARO ,  TANIGAWA SHOJI ,  ARAI TOMOFUMI

    IPC: H01S3/067 ,  H01S3/16 ,  H01S3/17 ,  H01S3/30

    CPC classification number: H01S3/06716 ,  C03C2201/28 ,  H01S3/06733 ,  H01S3/06754 ,  H01S3/1618 ,  H01S3/1693 ,  H01S3/175 ,  H01S3/302

    Abstract: An ytterbium-doped optical fiber including a core containing at least ytterbium, aluminum and phosphorous and a clad surrounding the core, wherein a molar concentration of diphosphorus pentoxide with respect to phosphorus in the core is equal to a molar concentration of aluminum oxide with respect to aluminum in the core, wherein a ratio of a molar concentration of diphosphorus pentoxide with respect to phosphorus in the core to the molar concentration of ytterbium oxide with respect to ytterbium in the core is higher than or equal to 10 and lower than or equal to 30, and wherein a relative refractive index difference between the core and the clad is higher than or equal to 0.05% and lower than or equal to 0.30%.

    Abstract translation: 1。一种掺镱光纤，其特征在于，包含至少含有镱，铝和磷的核以及包围所述核的包层，所述核中的五氧化二磷的摩尔浓度相对于氧化铝的摩尔浓度 其中核中的五氧化二磷的摩尔浓度相对于核中的磷的摩尔浓度与氧化镱相对于核中的镱的摩尔浓度之比高于或等于10且小于或等于30 并且其中所述芯与所述包层之间的相对折射率差大于或等于0.05％并且小于或等于0.30％。

    OPTICAL FIBER WITH LOW LOSS AND NANOSCALE STRUCTURALLY HOMOGENEOUS CORE
    140.
    发明公开
    OPTICAL FIBER WITH LOW LOSS AND NANOSCALE STRUCTURALLY HOMOGENEOUS CORE 审中-公开
    GLASFASER MIT GERINGEM VERLUST UND NANOSKALIGER STRUKTURELL HOMOGENER KERN

    公开(公告)号：EP3121155A1

    公开(公告)日：2017-01-25

    申请号：EP16180670.8

    申请日：2016-07-22

    Applicant: Ofs Fitel Llc, A Delaware Limited Liability Company

    Inventor： Yan, Man F. ,  Borel, Peter I. ,  Geisler, Tommy ,  Jensen, Rasmus V. ,  Levring, Ole A. ,  Olsen, Jorgen Ostgaard ,  Peckham, David W. ,  Trevor, Dennis J. ,  Wisk, Patrick W. ,  Zhu, Benyuan

    IPC: C03C3/06 ,  C03C4/10 ,  C03C13/04 ,  C03B37/012

    CPC classification number: C03C13/046 ,  C03B37/01208 ,  C03B37/027 ,  C03B2201/07 ,  C03B2201/08 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/50 ,  C03C3/06 ,  C03C4/10 ,  C03C13/045 ,  C03C2201/11 ,  C03C2201/12 ,  C03C2201/28 ,  C03C2201/50 ,  G02B6/03627 ,  G02B6/0365

    Abstract: An optical fiber has a core region that is doped with one or more viscosity-reducing dopants in respective amounts that are configured, such that, in a Raman spectrum with a frequency shift of approximately 600 cm -1 , the fiber has a nanoscale structure having an integrated D2 line defect intensity of less than 0.025. Alternatively, the core region is doped with one or more viscosity-reducing dopants in respective amounts that are configured such that the fiber has a residual axial compressive stress with a stress magnitude of more than 20 MPa and a stress radial extent between 2 and 7 times the core radius.
    According to another aspect of the invention a majority of the optical propagation through the fiber is supported by an identified group of fiber regions comprising the core region and one or more adjacent cladding regions. The fiber regions are doped with one or more viscosity-reducing dopants in respective amounts and radial positions that are configured to achieve viscosity matching among the fiber regions in the identified group.

    Abstract translation: 光纤具有掺杂有一种或多种减少粘度的掺杂剂的核心区域，其各自的配置量使得在具有约600cm -1频移的拉曼光谱中，纤维具有纳米尺度结构，其具有 集成的D2线缺陷强度小于0.025。 或者，核心区域掺杂有一种或多种各种量的降低粘度的掺杂剂，其被配置成使得纤维具有应力幅值大于20MPa的残余轴向压缩应力和2至7倍的应力径向范围 核心半径。 根据本发明的另一方面，通过光纤的大部分光学传播由包括芯区域和一个或多个相邻包层区域的所识别的一组光纤区域支撑。 纤维区域掺杂有相应量和径向位置中的一种或多种降低粘度的掺杂剂，其被配置为实现所识别的组中的纤维区域之间的粘度匹配。

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