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    OPTICAL FIBER, OPTICAL TRANSMISSION SYSTEM, AND METHOD OF MAKING OPTICAL FIBER
    331.
    发明申请
    OPTICAL FIBER, OPTICAL TRANSMISSION SYSTEM, AND METHOD OF MAKING OPTICAL FIBER 有权
    光纤，光传输系统和制造光纤的方法

    公开(公告)号：US20130148934A1

    公开(公告)日：2013-06-13

    申请号：US13706458

    申请日：2012-12-06

    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

    Inventor： Tetsuya NAKANISHI ,  Tatsuya KONISHI ,  Kazuya KUWAHARA

    IPC: G02B6/028 ,  C03B37/027

    CPC classification number: G02B6/028 ,  C03B37/02718 ,  C03B37/02727 ,  C03B2201/075 ,  C03B2201/12 ,  C03B2201/23 ,  C03B2205/56 ,  C03C13/045 ,  C03C13/046

    Abstract: Provided is an inexpensive low-loss optical fiber suitably used in an optical transmission network. An optical fiber includes a core, an optical cladding, and a jacket. The core has a relative refractive index difference between 0.2% and 0.32% and has a refractive index volume between 9%·μm2 and 18%·μm2. The jacket has a relative refractive index difference between 0.03% and 0.20%. Glass constituting the core has a fictive temperature between 1400° C. and 1560° C. Stress remaining in the core is compressive stress. A cutoff wavelength measured on a fiber having a length of 2 m is 1300 nm or more and a cutoff wavelength measured on a fiber having a length of 100 m is 1500 nm or less. An effective area at a wavelength of 1550 nm is 110 μm2 or more. A attenuation at a wavelength of 1550 nm is 0.19 dB/km or less.

    Abstract translation: 提供了适用于光传输网络的便宜的低损耗光纤。 光纤包括芯，光学包层和外壳。 芯的相对折射率差在0.2％至0.32％之间，折射率体积在9％·mum2和18％·mum2之间。 护套的相对折射率差为0.03％至0.20％。 构成核心的玻璃具有1400℃至1560℃之间的假想温度。芯体中的应力是压应力。 在长度为2μm的光纤上测量的截止波长为1300nm以上，在长度为100μm的光纤上测定的截止波长为1500nm以下。 1550nm波长的有效面积为110m 2以上。 在1550nm波长处的衰减为0.19dB / km或更小。

    METHOD AND TUBULAR SEMIFINISHED PRODUCT FOR PRODUCING AN OPTICAL FIBER
    333.
    发明申请
    METHOD AND TUBULAR SEMIFINISHED PRODUCT FOR PRODUCING AN OPTICAL FIBER 有权
    用于生产光纤的方法和管状半纤维产品

    公开(公告)号：US20120324960A1

    公开(公告)日：2012-12-27

    申请号：US13583605

    申请日：2011-03-10

    Applicant: Ralph Sattmann ,  Jan Vydra ,  Michael Huenermann

    Inventor： Ralph Sattmann ,  Jan Vydra ,  Michael Huenermann

    IPC: C03B37/027 ,  G02B6/036

    CPC classification number: C03B37/02754 ,  C03B37/01211 ,  C03B37/01228 ,  C03B37/01242 ,  C03B37/018 ,  C03B37/027 ,  C03B2201/075 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/30 ,  C03B2201/31 ,  C03B2203/22 ,  C03B2203/23 ,  C03B2205/30 ,  C03C13/045 ,  C03C2201/12 ,  G02B6/03633 ,  G02B6/0365 ,  Y10T428/2935

    Abstract: Methods for producing an optical fiber by elongating a silica glass blank or a coaxial group of silica glass components, on the basis of which a fiber is obtained that comprises a core zone, an inner jacket zone enclosing the core zone and a ring zone surrounding the inner jacket zone, are known. In order to provide, proceeding from this, a method, a tubular semi-finished product and a group of coaxial components for the cost-effective production of an optical fiber, which is characterized by a high quality of the boundary between the core and jacket and by low bending sensitivity, according to the invention, the silica glass of the ring zone is provided in the form of a ring zone tube made of silica glass having a mean fluorine content of at least 6000 weight ppm and the tube has an inner tube surface and an outer tube surface, wherein via the wall of the ring zone tube, a radial fluorine concentration profile is adjusted which has an inner fluorine depletion layer with a layer thickness of at least 1 μm and no more than 10 μm, in which the fluorine content decreases toward the inner tube surface and is no more than 3000 weight ppm in a region close to the surface which has a thickness of 1 μm.

    Abstract translation: 通过使二氧化硅玻璃坯料或同轴的二氧化硅玻璃成分组延长来制造光纤的方法，在此基础上获得包含芯区的纤维，包围芯区的内护套区和围绕该芯区的环带 内护套区域，已知。 为了提供一种用于成本有效地生产光纤的方法，管状半成品和一组同轴部件，其特征在于芯和夹套之间的边界质量高 并且通过低弯曲灵敏度，根据本发明，环区的石英玻璃以平均氟含量为至少6000重量ppm的石英玻璃制成的环形管的形式提供，并且管具有内管 表面和外管表面，其中通过环带管的壁，调节径向氟浓度分布，其具有层厚度为至少1μm且不大于10μm的内氟耗尽层，其中 氟含量向内管表面减少，并且在接近表面厚度为1μm的区域中不超过3000重量ppm。

    Low loss optical fiber designs and methods for their manufacture
    334.
    发明授权
    Low loss optical fiber designs and methods for their manufacture 有权
    低损耗光纤设计及其制造方法

    公开(公告)号：US08295668B2

    公开(公告)日：2012-10-23

    申请号：US13317073

    申请日：2011-10-07

    Applicant: Lance Gibson ,  David Peckham ,  Robert Lingle, Jr.

    Inventor： Lance Gibson ,  David Peckham ,  Robert Lingle, Jr.

    IPC: G02B6/036

    CPC classification number: G02B6/03683 ,  C03B37/01211 ,  C03B37/01228 ,  C03B37/014 ,  C03B37/018 ,  C03B2201/04 ,  C03B2201/075 ,  C03B2201/12 ,  C03B2201/31 ,  C03B2203/22

    Abstract: The specification describes an improved optical fiber produced by a hybrid VAD/MCVD process. The core of the fiber is produced using VAD and the inner cladding layer has a depressed index and is produced using MCVD. In preferred embodiments, the optical power envelope is essentially entirely contained in VAD produced core material and the MCVD produced depressed index cladding material. Optical loss is minimized by confining most of the optical power to the VAD core where OH presence is low, as well as by maximizing the optical power in the un-doped silica region. The MCVD substrate tube material is essentially devoid of optical power.

    Abstract translation: 本说明书描述了通过混合VAD / MCVD工艺生产的改进的光纤。 使用VAD制造纤维的芯，并且内包层具有凹陷指数，并且使用MCVD制造。 在优选实施例中，光功率包层基本上完全包含在VAD生产的芯材料中，并且MCVD产生凹陷的折射率包层材料。 通过将大部分光功率限制在其中OH存在低的VAD核心以及通过使未掺杂二氧化硅区域中的光功率最大化来将光损耗最小化。 MCVD衬底管材料基本上没有光学功率。

    SYNTHETIC SILICA GLASS WITH UNIFORM FICTIVE TEMPERATURE
    338.
    发明申请
    SYNTHETIC SILICA GLASS WITH UNIFORM FICTIVE TEMPERATURE 有权
    合成二氧化硅玻璃具有均匀的温度

    公开(公告)号：US20110092354A1

    公开(公告)日：2011-04-21

    申请号：US12902238

    申请日：2010-10-12

    Applicant: Carlos Duran ,  Kenneth Edward Hrdina ,  Ulrich Wilhelm Heinz Neukirch

    Inventor： Carlos Duran ,  Kenneth Edward Hrdina ,  Ulrich Wilhelm Heinz Neukirch

    IPC: C03C3/04 ,  C03B25/00

    CPC classification number: C03B25/02 ,  C03B19/1453 ,  C03B2201/07 ,  C03B2201/075 ,  C03B2201/22 ,  C03B2201/23

    Abstract: A method of making a silica glass having a uniform fictive temperature. The glass article is heated at a target fictive temperature, or heated or cooled at a rate that is less than the rate of change of the fictive temperature, for a time that is sufficient to allow the fictive temperature of the glass to come within 3° C. of the target fictive temperature. The silica glass is then cooled from the target fictive temperature to a temperature below the strain point of the glass at a cooling rate that is greater than the relaxation rate of the glass at the target fictive temperature. The silica glass has a fictive temperature that varies by less than 3° C. after the annealing step. A silica glass made by the method is also described.

    Abstract translation: 制造具有均匀的假想温度的二氧化硅玻璃的方法。 将玻璃制品在目标假想温度下加热，或以低于假想温度变化率的速率加热或冷却一段足以使玻璃的假想温度达到3°的时间 C.目标虚构温度。 然后将二氧化硅玻璃从目标假想温度冷却至低于玻璃应变点的温度，其冷却速率大于目标假想温度下玻璃的松弛率。 二氧化硅玻璃具有在退火步骤之后变化小于3℃的假想温度。 还描述了通过该方法制备的二氧化硅玻璃。

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