利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

6 条记录 (耗时 0.032 秒)

    Optical fiber splicing method and optical fiber
    3.
    发明授权
    Optical fiber splicing method and optical fiber 有权
    光纤拼接方法和光纤

    公开(公告)号：US06705772B2

    公开(公告)日：2004-03-16

    申请号：US10161624

    申请日：2002-06-05

    申请人： Motonori Nakamura ,  Osamu Kasuu ,  Daisuke Yokota ,  Yuichi Ohga

    发明人： Motonori Nakamura ,  Osamu Kasuu ,  Daisuke Yokota ,  Yuichi Ohga

    IPC分类号： G02B6255

    CPC分类号： G01N21/67 ,  G01N21/72

    摘要： An optical fiber splicing method capable of fully reducing the splice loss at room temperature is provided. In the optical fiber splicing method in accordance with the present invention, respective end faces of optical fibers are fused together in a splicing step (S101). In a condition setting step (S102), a set value &agr;0 is set. Thereafter, a heating step (S103), a measuring step (S104), and a termination determining step (S105) are carried out repeatedly. In the heating step, a region including the fusion-spliced point is heated under a predetermined heating condition. In the measuring step, splice loss is measured. In the termination determining step, the splice loss &agr;n measured in the measuring step and the set value &agr;0 set in the condition setting step are compared with each other in terms of magnitude. If the splice loss &agr;n is not greater than the set value &agr;0, then it is determined that the alternation should be terminated, whereby the optical fiber connecting operation is terminated.

    摘要翻译： 提供能够完全降低室温下的接头损耗的光纤接合方法。 在根据本发明的光纤拼接方法中，光纤的各个端面在拼接步骤中熔合在一起（S101）。 在条件设定步骤（S102）中，设定设定值α0。 此后，重复执行加热步骤（S103），测量步骤（S104）和终止确定步骤（S105）。 在加热步骤中，在预定加热条件下加热包含熔接点的区域。 在测量步骤中，测量接头损耗。 在终止确定步骤中，在测量步骤中测量的拼接损耗色差和在条件设置步骤中设置的设置值α0在幅度方面彼此进行比较。 如果接头损失字母不大于设定值α0，则确定应该终止交替，从而终止光纤连接操作。

    Method for fusion splicing of optical fibers
    4.
    发明授权
    Method for fusion splicing of optical fibers 有权
    光纤熔接方法

    公开(公告)号：US06854293B2

    公开(公告)日：2005-02-15

    申请号：US10068852

    申请日：2002-02-11

    申请人： Osamu Kasuu ,  Motonori Nakamura ,  Tomomi Sano ,  Tomomi Moriya ,  Shinji Kayou

    发明人： Osamu Kasuu ,  Motonori Nakamura ,  Tomomi Sano ,  Tomomi Moriya ,  Shinji Kayou

    IPC分类号： G02B6/255 ,  C03B37/15

    CPC分类号： G02B6/2551

    摘要： A method of fusion-splicing optical fibers having different mode field diameters or small mode field diameters is provided, which method is advantageous in that the splicing loss is smaller. The method comprises a fusion splicing process in which fusion splicing is performed by butting end faces of two optical fibers together and a heat treatment process in which the fusion spliced part of the optical fibers and the vicinity thereof are heated. The heat treatment process is performed by moving an arc heating unit in a direction other than the Y-axis direction (a direction perpendicular to the Z-axis direction and the opposing direction of arc electrodes) and Z-axis direction (the axial direction of the optical fiber), via the fusion spliced part in a Y-Z plane formed by the Y-axis direction and Z-axis direction.

    摘要翻译： 提供了具有不同模场直径或小模场直径的熔接光纤的方法，该方法的优点在于拼接损耗较小。 该方法包括熔接过程，其中通过将两根光纤的端面对接在一起进行熔接，并且加热熔接了光纤的一部分及其附近的热处理工艺。 通过使电弧加热单元沿除了Y轴方向（与Z轴方向垂直的方向和电弧电极的相反方向）以及Z轴方向（轴方向 光纤）经由Y轴方向和Z轴方向形成的YZ平面中的熔接部分。

    Method for fusion splicing optical fibers and apparatus for heating spliced part by arc
    5.
    发明授权
    Method for fusion splicing optical fibers and apparatus for heating spliced part by arc 失效
    用于熔接光纤的方法和用于通过电弧加热拼接部分的装置

    公开(公告)号：US06886998B2

    公开(公告)日：2005-05-03

    申请号：US10150929

    申请日：2002-05-21

    申请人： Osamu Kasuu ,  Motonori Nakamura ,  Tomomi Sano ,  Tomomi Moriya ,  Shinji Kayou

    发明人： Osamu Kasuu ,  Motonori Nakamura ,  Tomomi Sano ,  Tomomi Moriya ,  Shinji Kayou

    IPC分类号： G02B6/255

    CPC分类号： G02B6/2551

    摘要： An object is to provide an optical fiber fusion splicing method in which splice loss can be reduced, and also to provide an arc-heating unit used for heating the fusion spliced part of an optical fiber. The method comprises a process of fusion-splicing together the end faces of two optical fibers and a process of continuously heating the fusion spliced part by arc while moving one pair of electrodes provided opposite to each other across the fusion spliced part. The arc heating process is performed with the operation for decreasing arc temperature. The operation for decreasing arc temperature may be achieved by flowing a gas having a molecular weight greater than the average molecular weight of air into a gas atmosphere in which arc heating is performed, or by adding a modulation to an electric discharge current such that the maximum value becomes equal to or more than an electric current for starting arc discharge and the minimum value becomes more than zero and less than the electric current for starting arc discharge.

    摘要翻译： 本发明的目的是提供一种可以减少接头损耗的光纤熔接方法，并且还提供用于加热光纤的熔接部分的电弧加热单元。 该方法包括将两根光纤的端面熔接在一起的工序和通过电弧连续地加热熔接部的工序，同时使跨接在熔接部上的彼此相对设置的一对电极移动。 通过降低电弧温度的操作进行电弧加热处理。 降低电弧温度的操作可以通过将分子量大于空气的平均分子量的气体流入进行电弧加热的气体气氛中，或通过向放电电流添加调制，使得最大值 值变为等于或大于开始电弧放电的电流，并且最小值变得大于零并且小于用于开始电弧放电的电流。

    Method for connecting optical fibers
    6.
    发明授权
    Method for connecting optical fibers 有权

    公开(公告)号：US06666591B2

    公开(公告)日：2003-12-23

    申请号：US09939662

    申请日：2001-08-28

    申请人： Eisuke Sasaoka ,  Motonori Nakamura ,  Osamu Kasuu

    发明人： Eisuke Sasaoka ,  Motonori Nakamura ,  Osamu Kasuu

    IPC分类号： G02B6255

    CPC分类号： G02B6/2551 ,  G02B6/2552 ,  G02B6/262

    摘要： Methods for connecting two optical fibers having different mode field diameters ((MFD) with low connection loss is proposed. One method comprises steps of preparing the third fiber (Fiber 3), a short length and MFD being smaller than that of the first fiber (Fiber 1) and larger than that of the second (Fiber 2), connecting the Fiber 1 to 3, connecting Fiber 2 to 3, and increasing MFD of Fiber 3 near the part connected or to be connected to Fiber 1, or MFD of Fiber 2 near the part connected or to be connected to Fiber 3 by heating the corresponding part. The other method comprises steps of preparing a short length Fiber 3 having smaller MFD than that of Fiber 1, increasing MFD of Fiber 3 near the part to be connected to Fiber 1 by heating the corresponding part, and then connecting Fiber 1 to 3, and 3 to 2 in that order.