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    Fiber laser
    3.
    发明公开
    Fiber laser 有权
    Faserlaser

    公开(公告)号：EP0933841A2

    公开(公告)日：1999-08-04

    申请号：EP99300687.3

    申请日：1999-01-29

    申请人： HOYA CORPORATION

    发明人： Sekiguchi, Hiroshi ,  Tanaka, Akiyoshi

    IPC分类号： H01S3/06

    CPC分类号： H01S3/094003 ,  H01S3/06704 ,  H01S3/094015 ,  H01S3/094053 ,  H01S3/094057 ,  H01S3/09408 ,  H01S3/0941

    摘要： A laser fiber 1 is wound around an outer peripheral face 2a of a glass cylindrical member 2 serving as a structural member which can confine excitation lights L 1 and L 2 for exciting the laser fiber 1. The excitation lights L 1 and L 2 from laser diodes 41 and 42 impinge on the vicinity of the outer peripheral end portion of an end face 2b of the glass cylindrical member 2, through prisms 31 and 32, and confined by repeating total reflection at the inner side face of the outer peripheral face 2a. The confined excitation lights are introduced into the laser fiber 1 through portions contacted with the glass cylindrical member 2, thereby causing excitation.

    摘要翻译： 激光光纤1卷绕在作为结构部件的玻璃圆筒部件2的外周面2a上，该圆筒部件2能够限制用于激励激光光纤1的激发光L1和L2。激光二极管41和42的激发光L1和L2 撞击在玻璃圆柱形构件2的端面2b的外周端部附近，通过棱镜31和32，并且通过在外周面2a的内侧面上重复全反射来限制。 受限的激发光通过与玻璃圆柱形部件2接触的部分被引入到激光光纤1中，从而引起激发。

    Fiber laser
    4.
    发明公开
    Fiber laser 有权
    光纤激光器

    公开(公告)号：EP0933841A3

    公开(公告)日：2001-04-25

    申请号：EP99300687.3

    申请日：1999-01-29

    申请人： HOYA CORPORATION

    发明人： Sekiguchi, Hiroshi ,  Tanaka, Akiyoshi

    IPC分类号： H01S3/06

    CPC分类号： H01S3/094003 ,  H01S3/06704 ,  H01S3/094015 ,  H01S3/094053 ,  H01S3/094057 ,  H01S3/09408 ,  H01S3/0941

    摘要： A laser fiber 1 is wound around an outer peripheral face 2a of a glass cylindrical member 2 serving as a structural member which can confine excitation lights L 1 and L 2 for exciting the laser fiber 1. The excitation lights L 1 and L 2 from laser diodes 41 and 42 impinge on the vicinity of the outer peripheral end portion of an end face 2b of the glass cylindrical member 2, through prisms 31 and 32, and confined by repeating total reflection at the inner side face of the outer peripheral face 2a. The confined excitation lights are introduced into the laser fiber 1 through portions contacted with the glass cylindrical member 2, thereby causing excitation.

    Method for manufacturing optical fiber preform and method for manufacturing optical fiber
    5.
    发明公开
    Method for manufacturing optical fiber preform and method for manufacturing optical fiber 有权
    制造光纤的预制件的用于生产光学纤维的方法，和程序

    公开(公告)号：EP1016636A1

    公开(公告)日：2000-07-05

    申请号：EP99125712.2

    申请日：1999-12-23

    申请人： Hoya Corporation

    发明人： Tanaka, Akiyoshi

    IPC分类号： C03B37/018

    CPC分类号： C03B37/01838 ,  C03B2201/30 ,  C03B2201/34 ,  C03B2201/40 ,  C03B2201/50 ,  C03B2201/54 ,  C03B2207/90

    摘要： A method for manufacturing optical fiber preform comprising a core glass containing a light emitting substance (e.g. rare earth metal dopant) and a cladding glass, easily controlling an amount of the light emitting substance incorporated into the core glass without requiring any complicated step, includes the steps of forming a porous layer made of a precursor of the core glass on an inner surface of a hollow tube having an inner surface made of the cladding glass, spraying a medium containing the light emitting substance onto the porous layer, forming a layer of the core glass containing the light emitting substance by sintering the porous layer containing the light emitting substance, and forming a preform rod by collapsing the obtained hollow tube into a solid article. Alternatively, another method according to the invention includes the steps of spraying a medium containing a precursor of the core glass on the inner surface of the hollow tube, forming the core glass layer by sintering the formed precursor layer, and forming a preform rod by collapsing the obtained hollow tube into a solid article. A third method comprises spraying sequentially core-forming material and light emitting substance and a fourth method simultaneous spraying of both. An optical fiber can be formed by drawing the thus obtained optical fiber preforms.

    摘要翻译： 一种用于制造光纤预制件，其包括一个芯玻璃包含发光物质（例如稀土金属掺杂剂）和包层玻璃，容易地控制掺入到芯玻璃中的发光物质的量，而不需要任何复杂的步骤的方法，包括 形成由芯玻璃的前体的多孔层的步骤上的具有由包层玻璃的内表面上的中空管，喷涂含有轻到多孔层的发光物质的介质中，形成的一个层内表面 芯玻璃通过烧结包含发光物质的多孔层，并且通过折叠所述中空管获得成固体制品形成预制棒包含发光物质。 可替代地，雅丁本发明的另一方法包括喷涂含中空管的内表面上的芯玻璃的前体的培养基中，通过烧结所形成的前体层形成芯玻璃层，并通过折叠形成预制棒的步骤 得到的中空管成固体制品。 第三种方法包括喷涂依次形成芯的材料和发光物质和二者的第四方法同时喷雾。 光纤可通过拉伸如此获得的光纤预制件来形成。