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    Optical fiber conserving plane of polarization and its manufacture
    213.
    发明专利
    Optical fiber conserving plane of polarization and its manufacture 失效
    光纤保护极化平面及其制造

    公开(公告)号：JPS58223102A

    公开(公告)日：1983-12-24

    申请号：JP10643882

    申请日：1982-06-21

    Applicant: Hitachi Cable Ltd

    Inventor： NIIZAWA MASAHARU ,  TOKUNAGA TOSHIHIDE ,  KAJIOKA HIROSHI

    IPC: C03B37/012 ,  C03B37/018 ,  C03B37/026 ,  G02B6/02 ,  G02B6/024 ,  G02B6/10

    CPC classification number: G02B6/105 ,  C03B37/01217 ,  C03B37/01861 ,  C03B37/01892 ,  C03B37/026 ,  C03B2201/10 ,  C03B2201/31 ,  C03B2203/30 ,  G02B6/02

    Abstract: PURPOSE:To attenuate unnecessary light shifting to the other optical axis speedily and to obtain a large quenching rate by providing a light absorbing part which contains transition elements diffused onto either one of characteristic axes of polarization differing in light propagation constant to the outer circumference of a jacket enclosing a core. CONSTITUTION:A couple of grooves 2 are formed at facing positions in the internal surface of a quartz pipe support 1; and quartz wires 3 containing a large quantity of a transition metal such as Fe, Cu, and Pd are inserted into the grooves 2 and an SiO2 glass film is deposited in the support 1 to a specific thickness and heated to form an intermediate collapse. Then, the elliptic jacket 5 containing much B2O3, a clad 6 of SiO2, and the core 1 in the form of an SiO2 layer containing GeO2 are deposited successively in the collapse and while the pressure in the collapse is reduced, a base material made solid by being heated is drawn to obtain a polarization-plane conserving optical fiber which has light absorving parts 4a and 4b of the quartz wire 3 on the short axis of the jeacket 5. Then, a polarized signal coincident with the long-axis direction of the jacket 5 is sent as a less-noise polarized signal of good quality because the polarization in the short-axis direction of the jacekt 5 due to variation in external stress of the optical fiber, etc., is absorbed.

    Abstract translation: 目的：为了减少不必要的光快速移动到另一个光轴，并通过提供一种光吸收部分来获得大的淬灭速率，该光吸收部分包含扩散到光传播常数不同的偏振特性轴之一上的过渡元素， 外套包围核心。 构成：在石英管支撑件1的内表面的相对位置处形成有一对槽2; 将包含大量过渡金属如Fe，Cu和Pd的石英线3插入到槽2中，并将SiO 2玻璃膜沉积在支撑体1中，使其具有特定的厚度并加热形成中间的塌陷。 然后，包含大量B 2 O 3，SiO 2的包层6的椭圆形护套5和含有GeO 2的SiO 2层形式的芯1依次沉积在塌陷中，并且当塌陷中的压力减小时，基材固体 通过加热被拉伸以获得在空隙5的短轴上具有石英线3的吸光部分4a和4b的偏振平面保存光纤。然后，与沿着凹部5的长轴方向一致的偏振信号 夹套5作为质量较差的低噪声极化信号发送，因为吸收了由于光纤的外部应力的变化而引起的端子5的短轴方向的偏振。

    Vitreous production condition determining method and the glass body production method
    217.
    发明专利
    Vitreous production condition determining method and the glass body production method 有权

    公开(公告)号：JP4742589B2

    公开(公告)日：2011-08-10

    申请号：JP2005005657

    申请日：2005-01-12

    Applicant: 住友電気工業株式会社

    Inventor： 徹也 春名 ,  稔樹 樽 ,  真二 石川

    IPC: C03B37/014 ,  G02B6/00

    CPC classification number: C03B37/01807 ,  C03B2201/10 ,  C03B2201/31 ,  C03B2201/32

    Abstract: PROBLEM TO BE SOLVED: To provide a method for determining a condition for producing a glass body suitable for producing a glass body containing each dopant at a concentration close to the set concentration. SOLUTION: In a first step, an initial value V X1 is set for the flow rate of a raw material gas of a dopant X, and the flow rate V Y1 of a raw material gas of a dopant Y is determined on the basis of the yield E Y (V X1 ) of the dopant Y when the flow rate of the raw material of the dopant X is V X1 and the set concentration of the dopant Y. In a second step, the flow rate V X1 of the raw material gas of the dopant X is determined on the basis of the yield E X (V Y1 ) of the dopant Y when the flow rate of the raw material of the dopant Y is V Y1 and the set concentration of the dopant X. The first step and the second step are alternately executed. In the alternate execution of the first and second steps, the flow rates V X1 and V Y1 of the raw materials of the dopants X and Y at a time when the expected concentration of each dopant satisfies a predetermined determination condition are determined as the set flow rate V X0 and V Y0 . COPYRIGHT: (C)2006,JPO&NCIPI

    Amplifying optical fiber and method of manufacturing the same
    218.
    发明专利
    Amplifying optical fiber and method of manufacturing the same 有权
    放大光纤及其制造方法

    公开(公告)号：JP2010118663A

    公开(公告)日：2010-05-27

    申请号：JP2009258759

    申请日：2009-11-12

    Applicant: Draka Comteq Bv ,  ドラカ・コムテツク・ベー・ベー

    Inventor： PASTOURET ALAIN ,  BUROV EKATERINA ,  BOIVIN DAVID ,  COLLET CHRISTINE ,  CAVANI OLIVIER

    IPC: H01S3/06 ,  G02B6/00

    CPC classification number: H01S3/06716 ,  B82Y30/00 ,  C01F7/34 ,  C01F7/441 ,  C01P2002/52 ,  C01P2004/64 ,  C03B37/01838 ,  C03B37/01853 ,  C03B2201/10 ,  C03B2201/12 ,  C03B2201/14 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/60 ,  C03B2201/70 ,  C03C4/0071 ,  C03C13/04 ,  C03C14/006 ,  C03C2214/16 ,  H01S3/1608 ,  H01S3/169 ,  H01S3/176 ,  Y02P40/57

    Abstract: PROBLEM TO BE SOLVED: To provide an amplifying optical fiber doped with rare earth elements capable of maximizing gain medium efficiency in a specific gain configuration. SOLUTION: The present invention relates to an amplifying optical fiber having a central core and an optical cladding surrounding the central core wherein the central core is based on a silica matrix including nanoparticles composed of a matrix material including doping ions of at least one of an rare earth element. The matrix of the nanoparticle is selected to assist rare earth solubility and dispersion, and to assist an amplification process. Furthermore, the present invention relates to optical amplifier and an optical laser including the optical fiber according to the present application. Furthermore, the present invention relates to a method of preparing the nanoparticles, a method of manufacturing the optical fiber according to the present application, and the use of the optical fiber. COPYRIGHT: (C)2010,JPO&INPIT

    Abstract translation: 要解决的问题：提供掺杂有能够使特定增益配置中的增益介质效率最大化的稀土元素的放大光纤。 解决方案：本发明涉及一种具有中心芯和围绕中心芯的光学包层的放大光纤，其中中心芯基于二氧化硅基体，其包括由基质材料构成的纳米颗粒，所述基质材料包括至少一种 的稀土元素。 选择纳米颗粒的基质以辅助稀土溶解度和分散性，并辅助扩增过程。 此外，本发明涉及包括根据本申请的光纤的光放大器和光学激光器。 此外，本发明涉及一种纳米颗粒的制备方法，本发明的光纤的制造方法以及光纤的使用。 版权所有（C）2010，JPO＆INPIT

    Glass fiber having at least two glass clad layers
    219.
    发明专利
    Glass fiber having at least two glass clad layers 审中-公开
    玻璃纤维最少有两个玻璃层

    公开(公告)号：JP2007129243A

    公开(公告)日：2007-05-24

    申请号：JP2006324006

    申请日：2006-11-30

    Applicant: Schott Ag ,  ショット アクチエンゲゼルシャフトSchott AG

    Inventor： PEUCHERT ULRICH ,  SPRENGARD RUEDIGER ,  LETZ MARTIN ,  BUELLESFELD FRANK

    IPC: G02B6/00 ,  H01S3/10 ,  C03B37/012 ,  C03B37/023 ,  C03C3/068 ,  C03C3/253 ,  C03C13/04 ,  G02B6/036 ,  H01S3/06

    CPC classification number: C03B37/01274 ,  C03B37/01211 ,  C03B37/023 ,  C03B2201/10 ,  C03B2201/30 ,  C03B2201/32 ,  C03B2201/36 ,  C03B2203/23 ,  C03C3/068 ,  C03C3/253 ,  C03C13/046 ,  G02B6/03627 ,  G02B6/0365

    Abstract: PROBLEM TO BE SOLVED: To minimize a noise to be generated by scattered rays of light, and to increase the signal output of an amplifier as a result in a glass fiber for a light amplifier comprising a matrix glass containing at least one type of heavy metal oxide. SOLUTION: This invention relates to a glass fiber, comprising a core, the matrix glass of which contains the oxide of Bi, Te, Se, Sb, Pb, Cd, Ga and As, and/or mixed oxide, and/or at least one type of heavy metal oxide selected from among those mixtures and at least one type of rare earth compound, wherein the above mentioned core is surrounded by at least two glass clad layers, and a change Δn in refractive index from that of the core to that of the first clad is ranging from 0.001 to 0.08, and the refractive index of the first clad is set so as to be lower than that of the core. COPYRIGHT: (C)2007,JPO&INPIT

    Abstract translation: 要解决的问题：为了使由散射光产生的噪声最小化，并且为了增加放大器的信号输出，结果是包括含有至少一种类型的基体玻璃的光放大器的玻璃纤维 的重金属氧化物。 玻璃纤维本发明涉及一种玻璃纤维，其包含芯，其基质玻璃含有Bi，Te，Se，Sb，Pb，Cd，Ga和As的氧化物和/或混合氧化物，和/ 或选自这些混合物中的至少一种重金属氧化物和至少一种类型的稀土化合物，其中上述核心被至少两个玻璃包覆层包围，并且折射率的变化Δn与 第一包层的折射率为0.001〜0.08，第一包层的折射率设定为低于芯的折射率。 版权所有（C）2007，JPO＆INPIT

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