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    Polarization maintaining optical fiber and production method for polarization maintaining optical fiber preform
    11.
    发明授权
    Polarization maintaining optical fiber and production method for polarization maintaining optical fiber preform 有权
    偏振维持光纤的极化保持和光纤预制棒的制造方法

    公开(公告)号：US06738549B2

    公开(公告)日：2004-05-18

    申请号：US10091924

    申请日：2002-03-05

    Applicant: Tadayuki Inaba ,  Shigeru Emori ,  Naoki Shamoto ,  Kuniharu Himeno

    Inventor： Tadayuki Inaba ,  Shigeru Emori ,  Naoki Shamoto ,  Kuniharu Himeno

    IPC: G02B616

    CPC classification number: G02B6/105 ,  C03B37/01217 ,  C03B37/01231 ,  C03B2203/31

    Abstract: The present invention provides a polarization maintaining optical fiber of which polarization crosstalk characteristic is not deteriorated after fusing two or more polarization maintaining optical fibers, and provides a method for producing a preform thereof. The polarization maintaining optical fiber includes two stress applying portions disposed in a cladding around a core, in which an angle formed by a line connecting the center of one of the stress applying portions with the center of the core and a line connecting the center of the other stress applying portion with the center of the core is 3 degrees or less. The preform is produced by forming one insertion hole in a cladding element and then rotating the preform 180 degrees around a core element without moving the drilling tool, followed by forming the other insertion hole in the cladding element and then inserting stress applying elements into the insertion holes.

    Abstract translation: 本发明提供一种在熔融两种或更多种保偏光纤之后极化串扰特性不劣化的偏振保持光纤，并且提供了一种用于制造预制棒的方法。 偏振保持光纤包括设置在芯周围的包层中的两个应力施加部分，其中由将应力施加部分之一的中心与芯的中心连接的线和连接芯的中心的线形成的角度 具有芯的中心的其他应力施加部分为3度以下。 通过在包层元件中形成一个插入孔，然后将预制件围绕芯元件旋转180度而不移动钻孔工具，然后在包层元件中形成另一插入孔，然后将应力施加元件插入到插入件中， 孔。

    Optical fiber for preserving plane of polarization
    12.
    发明授权
    Optical fiber for preserving plane of polarization 有权
    用于保持极化平面的光纤

    公开(公告)号：US06687442B2

    公开(公告)日：2004-02-03

    申请号：US10047669

    申请日：2002-01-14

    Applicant: Naoki Shamoto ,  Kuniharu Himeno ,  Akira Wada

    Inventor： Naoki Shamoto ,  Kuniharu Himeno ,  Akira Wada

    IPC: G02B602

    CPC classification number: G02B6/105 ,  C03B37/01217 ,  C03B2203/31

    Abstract: An optical fiber for preserving the plane of polarization including a cladding and a stress imparting part disposed in the cladding, the stress imparting part comprising a base material including B2O3. The average concentration of B2O3 in the base material of the stress imparting part is in a range between about 17 and 21 wt. %, and the maximum concentration of B2O3 in the base material is in a range between about 17 and 22 wt. %. The optical fiber has excellent polarization plane preserving properties, and no concave portion is generated in its stress imparting part even under wet heat conditions.

    Abstract translation: 一种用于保持包括包层的偏振平面的光纤和设置在包层中的应力施加部分，所述应力赋予部分包括包含B 2 O 3的基底材料。 应力赋予部的基材中的B 2 O 3的平均浓度在约17〜21重量％的范围内。 ％，并且基材中B 2 O 3的最大浓度在约17和22重量％之间的范围内。 ％。 该光纤具有优异的偏振面保存特性，即使在湿热条件下也不会在其应力赋予部中产生凹部。

    Method for producing preform for polarization retaining optical fiber
    13.
    发明授权
    Method for producing preform for polarization retaining optical fiber 失效
    用于生产用于偏振保持光纤的预制件的方法

    公开(公告)号：US5221307A

    公开(公告)日：1993-06-22

    申请号：US892783

    申请日：1992-06-03

    Applicant: Masahiro Takagi ,  Hiroshi Suganuma ,  Hiroo Kanamori

    Inventor： Masahiro Takagi ,  Hiroshi Suganuma ,  Hiroo Kanamori

    IPC: C03B37/012

    CPC classification number: C03B37/01217 ,  C03B2203/31

    Abstract: A preform for a polarization retaining optical fiber is produced by making at least two bores symmetrically around a center axis of a preform comprising a core part and a cladding part which surrounds the core part, decreasing a diameter of one end of each bore, or connecting a glass tube to one end of the preform, the glass tube having a part with a smaller inner diameter near its end which is connected to the preform, inserting a first glass rod, a stressing member and a second glass rod in this order from the other end of each bore or from an end of each bore which is remote from the connected glass tube, contacting the first glass rod to the diameter-decreased end of each bore or to the part with a smaller inner diameter of the glass tube, and heating and fusing the second glass rod to the preform.

    Abstract translation: 用于偏振保持光纤的预成型体通过使包括芯部的芯部和包层部的包围芯部的预成型件的中心轴对称地形成至少两个孔而制造，减少每个孔的一端的直径或连接 玻璃管到预成型件的一端，玻璃管具有靠近其端部具有较小内径的部分，其连接到预成型件，从第一玻璃棒，第二玻璃棒按顺序插入第一玻璃棒，应力构件和第二玻璃棒 每个孔的另一端或远离连接的玻璃管的每个孔的端部，将第一玻璃棒接触每个孔的直径减小的端部或具有较小的玻璃管的内径的部分，以及 将第二玻璃棒加热并熔合到预制件上。

    Method of coating optical fibers
    14.
    发明授权
    Method of coating optical fibers 失效
    涂敷光纤的方法

    公开(公告)号：US4950047A

    公开(公告)日：1990-08-21

    申请号：US361385

    申请日：1989-06-05

    Applicant: George E. Berkey ,  Robert M. Hawk

    Inventor： George E. Berkey ,  Robert M. Hawk

    IPC: C03B37/027 ,  C03C25/10 ,  G02B6/10 ,  G02B6/255 ,  G02B6/28 ,  G02B6/44

    CPC classification number: C03C25/1055 ,  C03B37/027 ,  C03B37/02709 ,  G02B6/105 ,  G02B6/2552 ,  G02B6/2835 ,  G02B6/2843 ,  G02B6/4415 ,  G02B6/4486 ,  C03B2203/30 ,  C03B2203/31

    Abstract: This invention relates to a method of drawing twist-free optical fibers; it is particularly useful for drawing polarization retaining single-mode optical fibers having azimuthal inhomogeneities. There is applied to the fiber, during the drawing thereof, a coating having a non-circular cross-section, the azimuthal inhomogeneity of the fiber being positioned in a substantially constant orientation with respect to the non-circular cross-section of the coating. In another embodiment, a plurality of fibers having azimuthal inhomogeneities are drawn from a plurality of preforms that are properly oriented in the draw furnace. The fibers are drawn through the same coater so that the azimuthal inhomogeneity of each fiber is oriented in a substantially constant relationship with respect to the azimuthal inhomogeneities of the remaining fibers in the coating.

    Abstract translation: 本发明涉及无捻光纤的拉丝方法， 对于具有方位不均匀性的偏振保持单模光纤是特别有用的。 纤维在拉伸期间被应用于具有非圆形横截面的涂层，纤维的方位不均匀性相对于涂层的非圆形横截面定位在基本恒定的方位。 在另一个实施例中，多个具有方位不均匀性的纤维从在拉丝炉中正确取向的多个预制件中拉出。 通过相同的涂布机将纤维拉伸，使得每个纤维的方位不均匀性相对于涂层中剩余纤维的方位不均匀性基本恒定地定向。

    HIGH-BIREFRINGENCE HOLLOW-CORE FIBERS AND TECHNIQUES FOR MAKING SAME
    19.
    发明申请
    HIGH-BIREFRINGENCE HOLLOW-CORE FIBERS AND TECHNIQUES FOR MAKING SAME 有权
    高效的中空纤维和制造相同的技术

    公开(公告)号：US20150198764A1

    公开(公告)日：2015-07-16

    申请号：US14420467

    申请日：2013-03-15

    Applicant: OFS Fitel, LLC

    Inventor： David J. Digiovanni ,  John M. Fini ,  Robert S. Windeler

    IPC: G02B6/032 ,  C03B37/027 ,  C03B37/012

    CPC classification number: G02B6/032 ,  C03B37/01217 ,  C03B37/0122 ,  C03B37/02709 ,  C03B37/02781 ,  C03B2203/14 ,  C03B2203/16 ,  C03B2203/30 ,  C03B2203/302 ,  C03B2203/31 ,  C03B2205/10 ,  G02B6/02328 ,  G02B6/024 ,  Y02P40/57

    Abstract: A hollow core fiber has a cladding comprising a matrix of cells, wherein each cell comprises a hole and a wall surrounding the hole. The fiber further has a hollow core region comprising a core gap in the matrix of cells, wherein the core gap spans a plurality of cells and has a boundary defined by the interface of the core gap. The matrix of cells comprises 8 plurality of lattice cells, and a plurality of defect cells characterised by at least one difference in at least one property from that of the lattice cells. The cells at the core region boundary include lattice cells and defect cells that are arranged in a pattern that define two orthogonal axes of reflection symmetry, so as to produce birefringence in a light propagating through the hollow core fiber.

    Abstract translation: 中空芯纤维具有包含电池基体的包层，其中每个电池包括孔和围绕孔的壁。 纤维还具有包含细胞矩阵中的芯间隙的中空芯区域，其中芯间隙跨越多个单元并且具有由芯间隙的界面限定的边界。 单元矩阵包括8个多个晶格单元，以及多个缺陷单元，其特征在于与晶格单元的至少一个特性的至少一个差异。 核心区域边界处的单元包括以限定反射对称的两个正交轴的图案布置的晶格单元和缺陷单元，以便在通过中空芯纤维传播的光中产生双折射。

    Method of making an optical fiber
    20.
    发明授权
    Method of making an optical fiber 有权
    制造光纤的方法

    公开(公告)号：US07900481B2

    公开(公告)日：2011-03-08

    申请号：US11437382

    申请日：2006-05-19

    Applicant: Michael Thomas Gallagher ,  Ming-Jun Li ,  Joseph Edward McCarthy ,  Ji Wang ,  Luis Alberto Zenteno

    Inventor： Michael Thomas Gallagher ,  Ming-Jun Li ,  Joseph Edward McCarthy ,  Ji Wang ,  Luis Alberto Zenteno

    IPC: C03B37/028

    CPC classification number: C03B37/01217 ,  C03B37/01211 ,  C03B2201/10 ,  C03B2201/14 ,  C03B2201/31 ,  C03B2201/34 ,  C03B2201/36 ,  C03B2203/12 ,  C03B2203/14 ,  C03B2203/31

    Abstract: According to one embodiment a method of making optical fibers comprises: (i) manufacturing a core cane; (ii) situating a plurality of microstructures selected from rods, air filled tubes and glass filed tubes and placing said microstructures adjacent to the core cane, said microstructures forming no more than 3 layers; (iii) placing the core cane with said adjacent microstructures inside a holding clad tube; and (iv) placing interstitial cladding rods inside the holding (clad) tube, thereby forming an assembly comprising a tube containing a core cane, a plurality of microstructures and interstitial cladding rods. The assembly is then drawn into a microstructured cane and an optical fiber is drawn from the microstructured cane. According to several embodiments, the method of making an optical fiber includes providing at least one air hole and at least one stress rod adjacent to the core.

    Abstract translation: 根据一个实施例，制造光纤的方法包括：（i）制造芯棒; （ii）将选自杆，充气管和玻璃管的多个微结构放置在一起，并将所述微结构放置在与所述芯棒相邻的位置，所述微观结构不超过3层; （iii）将具有所述相邻微结构的芯棒放置在保持包层管内; 以及（iv）将间隙包层杆放置在保持（包覆）管内，由此形成包括含有芯棒，多个微结构和间隙包层棒的管的组件。 然后将组件拉入微结构的拐杖中，并且从微结构的拐杖中拉出光纤。 根据若干实施例，制造光纤的方法包括提供至少一个气孔和与芯相邻的至少一个应力棒。

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