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    PROCESS FOR PRODUCING OPTICAL FIBER
    43.
    发明申请
    PROCESS FOR PRODUCING OPTICAL FIBER 审中-公开
    生产光纤的工艺

    公开(公告)号：US20090095024A1

    公开(公告)日：2009-04-16

    申请号：US12272101

    申请日：2008-11-17

    Applicant: Tatsuo NAGASHIMA ,  Tomoharu Hasegawa ,  Seiki Ohara ,  Naoki Sugimoto

    Inventor： Tatsuo NAGASHIMA ,  Tomoharu Hasegawa ,  Seiki Ohara ,  Naoki Sugimoto

    IPC: C03B37/075

    CPC classification number: G02B6/02371 ,  C03B37/0124 ,  C03B37/01254 ,  C03B2201/60 ,  C03B2201/62 ,  C03B2201/78 ,  C03B2203/16 ,  C03B2203/42 ,  C03C13/048 ,  G02B6/02333 ,  G02B6/02366

    Abstract: To provide a process for producing an air cladding type optical fiber by a method other than extrusion molding.A process for producing an optical fiber comprising a hollow glass fiber with an optical transmission glass held to extend in its axial direction at its center, which process comprises a step of heating and drawing a glass rod having three or more holes with an equal diameter provided around its center axis to extend in its axial direction where the distance between each hole and the axis is mutually equal and the distance between adjacent holes is mutually equal, and a portion surrounded by such holes will constitute said optical transmission glass, while applying pressure to expand the holes with one end of the rod closed, to form a preform wherein glass between the holes is in a plate form, and subjecting the preform to wire drawing to form an optical fiber in which said optical transmission glass is held by plate glass.

    Abstract translation: 提供通过除挤出成型以外的方法制造空气包层型光纤的方法。 一种制造光纤的方法，该光纤包括中空玻璃纤维，该中空玻璃纤维具有保持其轴向在其中心延伸的光学透射玻璃，该方法包括加热和拉制具有三个或更多个具有相同直径的孔的玻璃棒的步骤 围绕其中心轴线延伸，每个孔和轴之间的距离相互相等并且相邻孔之间的距离相互相等，并且由这些孔包围的部分将构成所述光学透射玻璃，同时施加压力 在孔的一端封闭的情况下扩大孔，形成预成型件，其中，孔之间的玻璃呈板状，并对预成型件进行拉丝，形成光学玻璃。

    METHOD OF MAKING LOW-TEMPERATURE OPTICAL GLASS FIBERS FREE OF DEFECTS
    44.
    发明申请
    METHOD OF MAKING LOW-TEMPERATURE OPTICAL GLASS FIBERS FREE OF DEFECTS 审中-公开
    制造低温光学玻璃纤维的方法无缺陷

    公开(公告)号：US20090090136A1

    公开(公告)日：2009-04-09

    申请号：US12241461

    申请日：2008-09-30

    Applicant: Dahn C. Tran

    Inventor： Dahn C. Tran

    IPC: C03B37/023 ,  C03C25/10

    CPC classification number: C03B37/01268 ,  C03B2201/78 ,  C03C3/253 ,  C03C13/048

    Abstract: A method of molding low-temperature glass into a preform for formation by drawing into glass fiber, especially for transmission of mid-IR, involves casting a cladding glass into a mold cavity in the shape of the desired preform to form a cladding layer, and forming a glass core within the cladding layer, wherein the molten cladding glass is drained from the bottom of the mold cavity, forming an annular coating of cladding glass as an annular layer, and the core glass is quickly added within the annular cladding layer to form the glass core with the cladding layer thereabout.

    Abstract translation: 将低温玻璃成型为通过拉入玻璃纤维形成的预制件的方法，特别是用于中红外透射的方法包括将包层玻璃以期望的预成型件的形状浇铸到模腔中以形成包覆层，以及 在包覆层内形成玻璃芯，其中熔融包层玻璃从模腔的底部排出，形成环形层的包层玻璃的环形涂层，并且将芯玻璃快速添加到环形包层内以形成 玻璃芯与其上的包层。

    Borosilicate cladding glasses for germanate core thulium-doped amplifiers
    45.
    发明授权
    Borosilicate cladding glasses for germanate core thulium-doped amplifiers 失效
    用于锗酸盐铯掺杂放大器的硼硅酸盐包覆玻璃

    公开(公告)号：US06515795B1

    公开(公告)日：2003-02-04

    申请号：US09897833

    申请日：2001-06-29

    Applicant: Matthew J. Dejneka ,  Ji Wang

    Inventor： Matthew J. Dejneka ,  Ji Wang

    IPC: H01S3067

    CPC classification number: C03B37/01211 ,  C03B37/01274 ,  C03B2201/10 ,  C03B2201/30 ,  C03B2201/50 ,  C03B2201/54 ,  C03B2201/58 ,  C03B2201/78 ,  C03C13/046 ,  G02B6/03694 ,  H01S3/06716 ,  H01S3/06754 ,  H01S3/1616 ,  H01S3/163 ,  H01S3/1655

    Abstract: A borosilicate glass composition comprises SiO2 having a concentration of about 40 mole percent to about 60 mole percent, B2O3 having a concentration of about 10 mole percent to about 30 mole percent, and an alkaline earth and/or alkali compound having a concentration of 10 mole percent to about 40 mole percent. An optical fiber amplification device comprises a borosilicate glass material cladding. The core comprises a germanate glass material doped with Tm3+. The germanate glass material has a first surface configured to receive an optical signal having a wavelength of from about 1400 nm to about 1540 nm and a second surface configured to output an amplified optical signal. In this manner, low cost fiber amplifiers in the 1450-1530 nm wavelength region (corresponding to the S-band) can be achieved.

    Abstract translation: 硼硅酸盐玻璃组合物包含浓度为约40摩尔％至约60摩尔％的SiO 2，浓度为约10摩尔％至约30摩尔％的B 2 O 3和浓度为10摩尔的碱土金属和/或碱化合物 百分比至约40摩尔％。 光纤放大装置包括硼硅酸盐玻璃材料包层。 核心包括掺杂有Tm3 +的锗酸盐玻璃材料。 锗酸盐玻璃材料具有被配置为接收波长为约1400nm至约1540nm的光信号的第一表面和被配置为输出放大的光信号的第二表面。 以这种方式，可以实现1450-1530nm波长区域（对应于S波段）的低成本光纤放大器。

    Method of manufacturing optical fiber
    48.
    发明专利
    Method of manufacturing optical fiber 有权
    制造光纤的方法

    公开(公告)号：JP2007308323A

    公开(公告)日：2007-11-29

    申请号：JP2006137914

    申请日：2006-05-17

    Applicant: Asahi Glass Co Ltd ,  旭硝子株式会社

    Inventor： NAGASHIMA TATSUO ,  HASEGAWA TOMOHARU ,  OHARA MORITERU ,  SUGIMOTO NAOKI

    IPC: C03B37/027 ,  C03B37/012 ,  C03C13/04 ,  G02B6/00 ,  G02B6/032

    CPC classification number: G02B6/02371 ,  C03B37/0124 ,  C03B37/01254 ,  C03B2201/60 ,  C03B2201/62 ,  C03B2201/78 ,  C03B2203/16 ,  C03B2203/42 ,  C03C13/048 ,  G02B6/02333 ,  G02B6/02366

    Abstract: PROBLEM TO BE SOLVED: To provide a method of manufacturing an air-clad type optical fiber by a method other than an extrusion molding process. SOLUTION: Regarding the method of manufacturing an optical fiber where, to the center of a hollow glass fiber, an optical transmission glass elongating in the axial direction thereof is held, a glass rod 10 in which, around the central axis, three or more holes 11 elongating to the axial direction thereof and having mutually equal diameters are formed in such a manner that the distance between the axes of the respective holes and the central axis is made equal, further, the distance among the axes of the respective holes is made equal, and also, the part surrounded by these holes is made into the part so as to be the optical transmission glass is subjected to a stage in which it is heated while being pressurized so as to expand the holes with one end thereof sealed, thus its drawing is caused, so as to be a preform in which each glass between the respective holes has a planar shape, and this preform is drawn, so as to be the optical fiber in which the optical transmission glass is held by the planar glass. COPYRIGHT: (C)2008,JPO&INPIT

    Abstract translation: 要解决的问题：提供一种通过挤出成型工艺以外的方法制造空气包层型光纤的方法。 解决方案：关于制造光纤的方法，其中，在中空玻璃纤维的中心，保持沿其轴向延伸的光学透射玻璃的玻璃棒10，其中围绕中心轴线，三 或更多个沿其轴向延伸并且具有相互相同直径的孔11以这样的方式形成，使得各个孔的轴线与中心轴线之间的距离进一步等于各个孔的轴线之间的距离 相等，并且将由这些孔包围的部分制成部分，以使光透射玻璃经受其加压的阶段，以在其一端密封的情况下使孔膨胀 因此引起拉伸，从而成为各个孔之间的每个玻璃具有平面形状的预制件，并且将该预成型件拉制成光学透镜玻璃的光纤 由平面玻璃形成。 版权所有（C）2008，JPO＆INPIT

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