利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

16 条记录 (耗时 0.014 秒)

    OPTICAL FIBER PARENT MATERIAL AND METHOD FOR MANUFACTURING OPTICAL FIBER
    2.
    发明公开
    OPTICAL FIBER PARENT MATERIAL AND METHOD FOR MANUFACTURING OPTICAL FIBER 审中-公开
    光纤母材和制造光纤的方法

    公开(公告)号：EP3243803A1

    公开(公告)日：2017-11-15

    申请号：EP16735094.1

    申请日：2016-01-08

    申请人： Furukawa Electric Co. Ltd.

    发明人： KAWASAKI, Mitsuhiro

    IPC分类号： C03B37/012 ,  C03C19/00 ,  G02B6/02

    CPC分类号： C03B37/012 ,  C03B37/01251 ,  C03B37/0253 ,  C03B37/02772 ,  C03B2205/40 ,  C03B2205/44 ,  C03B2205/45 ,  C03B2205/47 ,  C03B2205/72 ,  G02B6/02

    摘要： An optical fiber preform includes: a columnar portion having an approximately constant radius of r; and a taper portion located adjacent to the columnar portion in a lengthwise direction and having a radius decreasing along the lengthwise direction. The taper portion includes: a first taper portion including a portion having a radius varying between 0.9r and 0.6r; and a second taper portion including a portion having a radius varying between 0.4r and 0.15r. A diameter of the first taper portion in the portion having the radius varying between 0.9r and 0.6r decreases so as to form a maximum angle θ1 between 40 degrees and 60 degrees with respect to the columnar portion, a diameter of the second taper portion in the portion having the radius varying between 0.4r and 0.15r decreases so as to form an average angle θ2 between 5 degrees and 30 degrees with respect to a central axis in the lengthwise direction, and a volume of the taper portion is smaller than or equal to 45% of a volume of a column having a same outer diameter as a maximum outer diameter of the taper portion and having a same length as the taper portion.

    摘要翻译： 一种光纤预制棒包括：具有近似不变的半径r的柱状部分; 以及在长度方向上与所述柱状部分相邻并且具有沿所述长度方向减小的半径的锥形部分。 锥形部分包括：第一锥形部分，其包括半径在0.9r和0.6r之间变化的部分; 以及包括半径在0.4r和0.15r之间变化的部分的第二锥形部分。 半径在0.9r和0.6r之间变化的部分中的第一锥形部分的直径减小，从而相对于柱形部分形成40度和60度之间的最大角度θ1，第二锥形部分的直径 半径在0.4r和0.15r之间变化的部分减小，从而相对于中心轴在长度方向上形成5度和30度之间的平均角度θ2，并且锥形部分的体积小于或等于 相同外径的锥体部分的最大外径的圆柱体积的45％，并具有与锥体部分相同的长度。

    Multimode optical fiber with large bandwidth and preform
    3.
    发明公开
    Multimode optical fiber with large bandwidth and preform 审中-公开
    Optische Mehrmodenfaser mit grosser Bandbreite und Vorform

    公开(公告)号：EP1156019A2

    公开(公告)日：2001-11-21

    申请号：EP01302471.6

    申请日：2001-03-19

    申请人： LUCENT TECHNOLOGIES INC.

    发明人： Golowich, Steven Eugene ,  Jones, Sean L. ,  Ritger, Albert John ,  Thornburg, K. Scott, Jr.

    IPC分类号： C03B37/012 ,  G02B6/16

    CPC分类号： C03B37/012 ,  G02B6/02 ,  G02B6/0281

    摘要： Embodiments of the invention include an optical fiber preform (30) and a multimode optical fiber drawn therefrom that has improved overfill-launch bandwidth performance without disturbing existing laser-launch bandwidth performance. The optical fiber preform includes a core region (34) configured to have a refractive index with a characteristic differential mode delay with a first portion associated with lower order modes that behaves conventionally and a second portion associated with higher order modes that deviates from conventional behavior in a way that improves overfill-launch bandwidth performance at one operating window without adversely impacting the laser-launch bandwidth performance at the same and other operating windows. Preform configurations conventionally optimized for operation at 850 nm are configured in such a way that their characteristic differential mode delay, at 1300 nm, initially increases in a conventional manner and then flattens out to approximately zero at the higher order modes. At 850 nm, the characteristic differential mode delay initially remains flat at approximately zero, in a conventional manner, and then decreases at the higher order modes.

    摘要翻译： 本发明的实施例包括光纤预制件（30）和从其中抽出的多模光纤，其具有改进的过充满发射带宽性能而不干扰现有的激光发射带宽性能。 光纤预制件包括芯区域（34），其被构造成具有特性差模延迟的折射率，第一部分与常规行为的低阶模式相关联，以及与高阶模式相关联的第二部分与偏离常规行为的第二部分 这样可以在一个操作窗口中改善过充电启动带宽性能，而不会对相同和其他操作窗口的激光发射带宽性能造成不利影响。 传统上为850nm操作而优化的预成型配置被配置成使得它们在1300nm下的特征差模延迟最初以常规方式增加，然后在高阶模式下变平到大约零。 在850nm处，特征性差模延迟最初以常规方式保持在大约零度平坦，然后在高阶模式下降低。

    Préforme comprenant un revêtement barrière contre la diffusion d'hydrogène dans la fibre optique fabriquée à partir de cette préforme, et procédé de préparation d'une telle préforme
    4.
    发明公开
    Préforme comprenant un revêtement barrière contre la diffusion d'hydrogène dans la fibre optique fabriquée à partir de cette préforme, et procédé de préparation d'une telle préforme 有权
    与Wasserstoffundurchlässigerlage瓶坯在从预制件和制造这种预制件的方法生产的光纤

    公开(公告)号：EP1048623A1

    公开(公告)日：2000-11-02

    申请号：EP00401136.7

    申请日：2000-04-25

    申请人： ALCATEL

    发明人： Orcel, Gérard ,  Dubois, Sophie ,  Campion, Jean-Florent

    IPC分类号： C03B37/012 ,  G02B6/16 ,  G02B6/44

    CPC分类号： G02B6/4492 ,  C03B37/012 ,  C03B37/01291 ,  C03B37/01413 ,  C03B2201/32 ,  G02B6/02

    摘要： Préforme (3) de fibre optique comprenant un coeur (20), de rayon R, et une gaine comprenant une gaine optique (21) et une gaine externe (28), caractérisée en ce que la gaine externe (28) comprend une zone interne (27), et une zone périphérique (25), cette dernière en silice dopée par l'alumine, d'épaisseur comprise entre 0,08 R et 2,2 R et de proportion poids d'alumine telle que la concentration équivalente d'alumine dans toute la gaine externe (28) est comprise entre 100 et 1000 ppm en poids d'aluminium par rapport à la silice. Procédé de fabrication de ladite préforme et fibre optique associée (15).

    摘要翻译： 光纤预制件，对外部氧化铝掺杂二氧化硅包层（28），用0.08-2.2řthicknes的周边区（25）和氧化铝含量提供相对低的等效氧化铝浓度在整个外部包层。 基于二氧化硅的光纤预制件包括半径（R）的芯（20）与芯直接接触，并且掺杂氧化铝 - 二氧化硅的外部覆层（28）内部光学包层（21）。 的新颖之处在于做（a）所述外部包层具有与所述光学包层和一个周边区域（25），所有这些是与哪besteht主要的氧化铝掺杂二氧化硅的内部区直接接触的直接接触内部ZO（27）; （B）的周边区域（25）的厚度0.08-2.2的R; 和（c）在所述周边区域中的量氧化铝检查没有氧化铝的整个外部覆层的当量浓度相当于按重量计100-1000ppm的铝的二氧化硅。 因此独立权利要求中包括了：（1）用于制造上述预成型体的工序; 和（2）从上述预型体或由上述方法制得的预成型体制造光纤

    VERFAHREN ZUR HERSTELLUNG VON SYNTHETISCHEM QUARZGLAS NACH DER SOOTMETHODE
    6.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON SYNTHETISCHEM QUARZGLAS NACH DER SOOTMETHODE 有权
    用于生产合成石英玻璃后SOOTMETHODE

    公开(公告)号：EP2782880A1

    公开(公告)日：2014-10-01

    申请号：EP12794915.4

    申请日：2012-11-22

    申请人： Heraeus Quarzglas GmbH & Co. KG

    发明人： FABIAN, Heinz ,  RÖPER, Jürgen

    IPC分类号： C03B37/014 ,  C03B19/14

    CPC分类号： C03B20/00 ,  C03B19/1415 ,  C03B37/012 ,  C03B37/01413 ,  C03B2207/32 ,  C03B2207/85

    摘要： A known method for producing synthetic quartz glass comprises the following method steps: forming a stream from a SiO
    2 starting material that contains octamethylcyclotetrasiloxane (D4) as a main component; a reference molecular mass being associated therewith; supplying the stream to a reaction zone in which the starting material is converted by pyrolysis or hydrolysis to SiO
    2 while amorphous SiO
    2 particles are formed; depositing the amorphous SiO
    2 particles on a deposition surface to form a porous SiO
    2 soot body; and vitrifying the soot body to form the quartz glass. In order to, proceeding therefrom, produce large-volume, cylindrical soot bodies having an outer diameter of more than 300 mm and an improved material homogeneity, the invention proposes that the liquid starting material contains additional components in the form of additional polyalkylsiloxanes, wherein light polyalkylsiloxanes having a relative molecular mass of less than the reference molecular mass and heavy polyalkylsiloxanes having a relative molecular mass of more than the reference molecular mass are contained with a weight proportion of at least 50 ppm and at least 30 ppm, respectively.

    ROD INSERTION JIG AND METHOD FOR PRODUCING MULTICORE OPTICAL FIBER BASE MATERIAL
    8.
    发明公开
    ROD INSERTION JIG AND METHOD FOR PRODUCING MULTICORE OPTICAL FIBER BASE MATERIAL 审中-公开

    公开(公告)号：EP4438569A1

    公开(公告)日：2024-10-02

    申请号：EP22895640.5

    申请日：2022-11-16

    申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD.

    发明人： SUGANUMA, Takahiro ,  HASEGAWA, Takemi ,  MOTOFUJI, Tooru

    IPC分类号： C03B37/012

    CPC分类号： C03B37/012

    摘要： A rod insertion jig inserts a glass rod into a hole penetrating a cladding preform. The cladding preform has a first hole. A first glass pipe is connected to a first end of the cladding preform. A second glass pipe is connected to a second end of the cladding preform. The first glass rod that is the glass rod inserted into the first hole is a rod-shaped member of which an axial direction is a first direction. The rod insertion jig includes a support portion installed in contact with an inner surface of the first glass pipe, a first holding portion supported by the support portion inside the first glass pipe, and a first moving portion that is a member for moving the first glass rod. The first holding portion has a first mounting surface on which the first glass rod is mounted along the first direction. The support portion supports the first holding portion such that the first glass rod mounted on the first mounting surface entirely overlaps the first hole as viewed from the first direction. The first moving portion moves the first glass rod mounted on the first mounting surface in the first direction.

    Optical fiber having reduced residual stress discontinuity
    10.
    发明公开
    Optical fiber having reduced residual stress discontinuity 审中-公开
    Optische Faser mit reduzierter Restspannungsdiskontinuittt

    公开(公告)号：EP1564570A1

    公开(公告)日：2005-08-17

    申请号：EP05002495.9

    申请日：2005-02-07

    申请人： Samsung Electronics Co., Ltd.

    发明人： Park, Se Ho ,  Kim, Jin-Haing

    IPC分类号： G02B6/18 ,  C03B37/027

    CPC分类号： G02B6/0288 ,  C03B37/012 ,  C03B37/01205 ,  C03B37/027 ,  C03B2201/02 ,  C03B2201/31 ,  C03B2203/225 ,  C03B2203/26 ,  C03C13/045 ,  C03C13/046

    摘要： An optical fiber having reduced residual stress discontinuity is disclosed. The optical fiber includes a core which is an optical transmission medium and a clad for surrounding the core. The residual stress discontinuity at an interface between the core and the clad is 20.0 MPa or less, which is represented by an absolute value of a difference between a minimum axial stress at (r/a) = 0.8-1.1 and a maximum axial stress at (r/a) = 1.0-1.2, wherein a is the radius of the core and r is a radius measured from the center of the core.

    摘要翻译： 公开了具有减小的残余应力不连续性的光纤。 光纤包括作为光传输介质的芯和用于围绕芯的包层。 在芯和包层之间的界面处的残余应力不连续性为20.0MPa或更小，其由（r / a）= 0.8-1.1的最小轴向应力与最大轴向应力之间的差异的绝对值 （r / a）= 1.0-1.2，其中a是芯的半径，r是从芯的中心测量的半径。