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    Device for coating a fiber and a method for coating a fiber and a fiber
    2.
    发明授权
    Device for coating a fiber and a method for coating a fiber and a fiber 有权

    公开(公告)号：US10974991B2

    公开(公告)日：2021-04-13

    申请号：US15381119

    申请日：2016-12-16

    Applicant: J-FIBER GMBH

    Inventor： Robert Hanf ,  Lothar Brehm ,  Juergen Rosenkranz

    IPC: C03C25/6226 ,  B05B13/02 ,  C03C25/1065 ,  C03C25/106 ,  C03C25/14 ,  B05D3/06 ,  B05D3/04 ,  G02B6/02

    Abstract: A device for coating a fiber includes a fiber receiving arrangement and a coating arrangement which includes an application unit which wets the fiber with a coating agent, and a curing unit arranged downstream of the application unit which optically cures the coating agent. The curing unit includes a lamp which emits at least one light beam which is aimed directly or indirectly at a surface of the fiber. A main radiation direction of the lamp includes a beam angle between the main radiation direction and a longitudinal direction of the fiber of less than 40°. The fiber receiving arrangement and the application unit are movable relative to each other in the longitudinal direction of the fiber via a translational motion arrangement so that a wetting process is implemented substantially along an entire length of the fiber.

    POLARIZATION-MAINTAINING OPTICAL FIBRE AND PREFORM AND METHOD FOR PRODUCING THE SAME
    3.
    发明申请
    POLARIZATION-MAINTAINING OPTICAL FIBRE AND PREFORM AND METHOD FOR PRODUCING THE SAME 有权
    极化保持光纤及其制造方法及其制造方法

    公开(公告)号：US20170075147A1

    公开(公告)日：2017-03-16

    申请号：US15308549

    申请日：2015-05-06

    Applicant: J-FIBER GMBH

    Inventor： Thomas Gutsche ,  Wolfgang Hämmerle ,  Robert Hanf ,  Lothar Brehm

    IPC: G02F1/01 ,  C03B37/027 ,  C03B37/012

    CPC classification number: G02F1/0134 ,  C03B37/01217 ,  C03B37/01234 ,  C03B37/02709 ,  C03B2203/30 ,  C03B2203/31 ,  C03B2205/08 ,  C03B2205/12 ,  G02B6/00 ,  G02B6/024 ,  Y02P40/57

    Abstract: The invention relates to a method for producing a polarization-maintaining optical fibre, consisting of a core region and stress-generating elements embedded in the fibre body, having the following method steps: producing a core preform for the core region using internal deposition on a substrate tube, the internally coated substrate tube subsequently being collapsed, generating recesses on the core preform by virtue of the material on the outer surface of the core preform being removed parallel to the longitudinal axis of the core preform at diametrically opposed positions, filling the recesses with stress-generating rods, with the tightest possible rod packing, in a freely selectable first filling geometry, possibly filling the recesses in addition with non-stress-generating rods in a second filling geometry, sheathing the filled core preform with a jacketing tube, preparing the sheathed core preform for a fibre-drawing process, and drawing the sheathed arrangement to form in the optical fibre. A preform for producing a polarization-maintaining optical fibre contains a core preform, having a core region and a lateral region, and also contains a jacketing tube, which encloses the core preform, as well as stress-generating elements contained in the lateral region, wherein the stress-generating elements are provided in the form of recesses in the lateral region, wherein the recesses are filled with doped rods and/or undoped rods, and wherein the rod filling forms a first and/or a second arrangement geometry.

    Abstract translation: 本发明涉及一种用于制造偏振保持光纤的方法，该光纤由核心区域和嵌入在该纤维体内的应力产生元件组成，具有以下方法步骤：使用内部沉积制备用于芯区域的纤芯预制棒 衬底管，内部涂覆的衬底管随后被塌缩，由于纤芯预制件的外表面上的材料在径向相对的位置处平行于芯预制件的纵向轴线移除，从而在芯预制件上产生凹陷，填充凹部 具有最可能的杆填料的应力产生杆以可自由选择的第一填充几何形状，可能地在第二填充几何形状中用非应力产生杆填充凹部，用夹套管覆盖填充的芯预制件， 准备用于纤维拉伸工艺的护套芯预制件，并绘制护套布置以形成选择 光纤。 用于制造偏振保持光纤的预制件包含具有芯区域和横向区域的芯预制件，并且还包含封装芯预制件的护套管以及包含在横向区域中的应力产生元件， 其中所述应力产生元件以横向区域中的凹部的形式提供，其中所述凹部填充有掺杂的棒和/或未掺杂的棒，并且其中所述棒填充物形成第一和/或第二布置几何形状。

    Methods for making active laser fibers
    4.
    发明授权
    Methods for making active laser fibers 有权
    制作激光光纤的方法

    公开(公告)号：US09255026B2

    公开(公告)日：2016-02-09

    申请号：US13787084

    申请日：2013-03-06

    Applicant: j-fiber GmbH

    Inventor： Jurgen Rosenkranz ,  Wolfgang Haemmerle ,  Lothar Brehm ,  Katrin Roessner ,  Robert Hanf

    IPC: C03B37/027 ,  C03B37/012 ,  H01S3/094

    CPC classification number: C03B37/02763 ,  C03B37/01211 ,  C03B37/01217 ,  C03B37/0122 ,  C03B37/01222 ,  C03B2201/04 ,  C03B2201/10 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2203/02 ,  C03B2203/12 ,  C03B2203/14 ,  C03B2203/31 ,  C03B2203/34 ,  C03B2205/40 ,  H01S3/094007

    Abstract: Methods for making active laser fibers include the production of an optical fiber with disturbed (or deviated) cylindrical symmetry on the glass surface of the fiber. The methods include a preform containing a central core made of glass. In one embodiment, the preform is circular and surrounded by additional glass rods and an outer glass jacket tube. In a first alternative embodiment, this preform is merged during fiber drawing. In a second alternative embodiment, the preform merged in a process forming a compact glass body with disturbed cylindrical symmetry. This compact preform is drawn into a fiber under conditions maintaining the disturbed cylindrical symmetry.

    Abstract translation: 制造活性激光光纤的方法包括在纤维的玻璃表面上产生具有干扰（或偏离）圆柱对称的光纤。 该方法包括一个包含由玻璃制成的中心芯的预制件。 在一个实施例中，预成型件是圆形的并被另外的玻璃棒和外部玻璃护套管包围。 在第一替代实施例中，在纤维拉伸期间将该预制件合并。 在第二替代实施例中，预成型件在形成具有扰动的圆柱形对称的紧凑玻璃体的工艺中合并。 这种紧凑的预成型件在保持受扰的圆柱形对称性的条件下被拉入纤维中。

    Bend insensitive gradient index multi-mode light conducting fiber
    5.
    发明授权
    Bend insensitive gradient index multi-mode light conducting fiber 有权
    弯曲不敏感梯度折射率多模光导纤维

    公开(公告)号：US08805145B2

    公开(公告)日：2014-08-12

    申请号：US13654975

    申请日：2012-10-18

    Applicant: J-Fiber GMBH

    Inventor： Wolfgang Hämmerle ,  Harald Hein ,  Christian Genz ,  Lothar Brehm ,  Falk Wirth

    IPC: G02B6/02

    CPC classification number: G02B6/0365 ,  G02B6/0288

    Abstract: The invention relates to a bend insensitive gradient index multimode light conducting fiber comprising a leakage mode dependent optical core diameter that is uniform over its length and numerical aperture that is uniform over its length, a core (1), an inner cladding (2), a refraction index trench (3) and an outer cladding (4), wherein the core (1) includes a core radius R1, an alpha-refraction index profile and a core refraction index difference dn1 with respect to the outer cladding (4), wherein the refraction index trench (3) includes a refraction index trench radius R3 and a trench refraction index difference dn3 with respect to the outer cladding (4), wherein the outer cladding (4) includes an outer cladding radius R4 and a refraction index between 1.40 and 1.55, wherein for a light wavelength of 850 nm and an overfilled launch (OFL), the optical core diameter for a fiber length in a range between 2 m and 300 m decreases by less than 5% and the numerical aperture decreases by less than 2.5% and the curvature related attenuation increase for two turns and a curvature radius of 7.5 mm is less than 0.2 db.

    Abstract translation: 本发明涉及一种弯曲不敏感梯度折射率多模光导纤维，其包括在其长度上均匀的泄漏模式相关光纤芯直径和在其长度上均匀的数值孔径;芯（1），内包层（2）， 折射折射率沟槽（3）和外包层（4），其中芯部（1）包括芯部半径R1，α折射率分布和相对于外包层（4）的芯折射率差dn1， 其中所述折射折射沟槽（3）包括相对于所述外包层（4）的折射率折射率沟槽半径R3和沟槽折射率差dn3，其中所述外包层（4）包括外包层半径R4和 1.40和1.55，其中对于850nm的光波长和过满的发射（OFL），在2μm和300μm之间的范围内的光纤长度的光纤芯直径减小小于5％，并且数值孔径减小 超过2.5％，曲率相关衰减增加两圈，曲率半径为7.5mm小于0.2db。

    Methods for Making a Graded-Index Multimode Preform and Fiber
    7.
    发明申请
    Methods for Making a Graded-Index Multimode Preform and Fiber 审中-公开
    制造分级指数多模前体和纤维的方法

    公开(公告)号：US20140020431A1

    公开(公告)日：2014-01-23

    申请号：US13945142

    申请日：2013-07-18

    Applicant: j-fiber GmbH

    Inventor： Christian Genz ,  Wolfgang Haemmerle ,  Lothar Brehm

    IPC: C03B37/018

    CPC classification number: C03B37/01815 ,  C03B2203/26 ,  C03B2207/66 ,  C03B2207/70

    Abstract: Methods for making a preform for a graded-index multimode fiber by using an inside deposition process are disclosed. The methods are characterized by an iterative refractive index profile correction with the following steps: determining a target refractive index profile for the preform to be produced, carrying out an inside deposition process with fixed volume flows for the reacting gases inside a tube and a given burner speed for all deposited layers, collapsing the tube and measuring the actual refractive index profile, comparing the target profile with the actual profile and calculating a correction value of index differences, converting this correction value in corrected burner speeds as varying process parameter, carrying out a inside deposition process with fixed gas flows and corrected burner speeds for all layers to be deposited.

    Abstract translation: 公开了通过使用内部沉积工艺制备用于渐变折射率多模光纤的预成型件的方法。 该方法的特征在于迭代折射率分布校正，具有以下步骤：确定待生产的预成型件的目标折射率分布，对于管内和给定的燃烧器内的反应气体进行固定体积流的内部沉积工艺 对所有沉积层进行速度，塌缩管并测量实际折射率分布，将目标轮廓与实际轮廓进行比较，并计算折射率差异的校正值，将校正的燃烧器速度中的该校正值转换为变化的过程参数，执行 内部沉积过程中具有固定气体流量和校正的燃烧器速度，用于所有层的沉积。

    Methods and Devices for Making Glass Fiber Preforms
    9.
    发明申请
    Methods and Devices for Making Glass Fiber Preforms 审中-公开
    制造玻璃纤维预制件的方法和装置

    公开(公告)号：US20130273248A1

    公开(公告)日：2013-10-17

    申请号：US13830008

    申请日：2013-03-14

    Applicant: J-FIBER GMBH

    Inventor： Wolfgang Haemmerle ,  Elke Poppitz ,  Klaus Westhauser ,  Lothar Brehm

    IPC: C03C25/22

    CPC classification number: C03C25/223 ,  C03B37/01807 ,  C03B37/01815 ,  C03B2201/31

    Abstract: Methods and devices for the production of glass fiber preforms are disclosed. The methods and devices are based on a modified chemical vapour deposition process wherein the reacting gases are reacted in a hot zone within a substrate tube. Glass layers are deposited by a first heating instrument moving with respect to the substrate tube. The reaction gases are subjected to a temperature treatment before entering the hot zone of the main burner to encourage an evenly distributed chemical reaction, deposition and doping concentration over the length of the substrate tube. This is based on the position of the substrate tube with respect to the heating instrument and the resulting different heating of the reaction gases.

    Abstract translation: 公开了用于生产玻璃纤维预成型件的方法和装置。 方法和装置基于改进的化学气相沉积方法，其中反应气体在衬底管内的热区中反应。 通过相对于衬底管移动的第一加热仪器沉积玻璃层。 在进入主燃烧器的热区之前，将反应气体进行温度处理，以促进在衬底管的长度上的均匀分布的化学反应，沉积和掺杂浓度。 这是基于衬底管相对于加热仪器的位置和由此导致的反应气体的不同加热。

    Polarization-maintaining optical fibre and preform and method for producing the same
    10.
    发明授权
    Polarization-maintaining optical fibre and preform and method for producing the same 有权

    公开(公告)号：US09720264B2

    公开(公告)日：2017-08-01

    申请号：US15308549

    申请日：2015-05-06

    Applicant: J-FIBER GMBH

    Inventor： Thomas Gutsche ,  Wolfgang Hämmerle ,  Robert Hanf ,  Lothar Brehm

    IPC: C03B37/012 ,  C03B37/027 ,  G02B6/024 ,  G02F1/01

    CPC classification number: G02F1/0134 ,  C03B37/01217 ,  C03B37/01234 ,  C03B37/02709 ,  C03B2203/30 ,  C03B2203/31 ,  C03B2205/08 ,  C03B2205/12 ,  G02B6/00 ,  G02B6/024 ,  Y02P40/57

    Abstract: The invention relates to a method for producing a polarization-maintaining optical fiber, consisting of a core region and stress-generating elements embedded in the fiber body, having the following method steps: producing a core preform for the core region using internal deposition on a substrate tube, the internally coated substrate tube subsequently being collapsed, generating recesses on the core preform by virtue of the material on the outer surface of the core preform being removed parallel to the longitudinal axis of the core preform at diametrically opposed positions, filling the recesses with stress-generating rods, with the tightest possible rod packing, in a freely selectable first filling geometry, possibly filling the recesses in addition with non-stress-generating rods in a second filling geometry, sheathing the filled core preform with a jacketing tube, preparing the sheathed core preform for a fiber-drawing process, and drawing the sheathed arrangement to form the optical fiber. A preform for producing a polarization-maintaining optical fiber contains a core preform, having a core region and a lateral region, and also contains a jacketing tube, which encloses the core preform, as well as stress-generating elements contained in the lateral region, wherein the stress-generating elements are provided in the form of recesses in the lateral region, wherein the recesses are filled with doped rods and/or undoped rods, and wherein the rod filling forms a first and/or a second arrangement geometry.

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