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1. 发明授权

US4506947A Method and apparatus for core alignment of optical fibers 失效
标题翻译：光纤芯线对准的方法和装置
公开(公告)号：US4506947A
公开(公告)日：1985-03-26
申请号：US438821
申请日：1982-11-03
申请人： Koichi Tatekura , Hitoshi Yamamoto , Makoto Nunokawa , Yoshihiro Ejiri
发明人： Koichi Tatekura , Hitoshi Yamamoto , Makoto Nunokawa , Yoshihiro Ejiri
IPC分类号： G02B6/24 , G01B11/27 , G01M11/00 , G02B6/255 , G02B6/38 , G02B7/26
CPC分类号： G02B6/2551 , G01B11/272 , G01M11/37 , G02B6/2555
摘要： In the connection of the opposed ends of two optical fibers, a method and apparatus for core alignment of the optical fibers, comprises placing the two optical fibers being connected so that their ends face each other, and illuminating at least the facing ends with a beam of ultraviolet light thereby causing the illuminated ends of the cores of the optical fibers which are doped with germanium (Ge) to emit light of a wavelength in the visible region and enabling the core alignment to be directly monitored visually with the aid of the visible light so emitted from the cores during the course of the core alignment.
摘要翻译：在两个光纤的相对端的连接中，用于光纤的芯线对准的方法和装置包括将两个光纤连接成使得它们的端部彼此面对，并且用光束至少照射相对端部的紫外线，从而使掺杂有锗（Ge）的光纤的芯的照明端发射出可见光区域的波长的光，并且借助于可见光直接监视核心对准因此在核心对准过程中从核心发射。

2. 发明授权

US4595284A Method and apparatus for measuring distribution of elongation in an optical cable 失效
标题翻译：测量光缆伸长分布的方法和装置
公开(公告)号：US4595284A
公开(公告)日：1986-06-17
申请号：US564534
申请日：1983-12-22
申请人： Koichi Tatekura , Kiyofumi Mochizuki , Yoshihiro Ejiri
发明人： Koichi Tatekura , Kiyofumi Mochizuki , Yoshihiro Ejiri
IPC分类号： G01B11/16 , G01M11/00 , G01S11/12 , G02B6/00 , G01N21/84
CPC分类号： G01M11/30 , G01B11/18 , G01S11/12
摘要： Elongation distortion at any location of an optical fiber cable is measured by using the principle of the stimulated Raman effect in which a stokes beam with a little frequency difference from that of a pumping beam is generated when a pumping beam and a seed beam with the same frequency as that of the stokes beam meet in a Raman material like an optical fiber cable. Due to the fact that the group refractive index of an optical fiber cable for a pumping beam is different from that for a stokes beam, elongation of a cable is measured by observing time difference of the arrival of pumping beam and stokes beam. The location that the pumping beam meets with the stokes beam can be adjusted merely by shifting the pumping pulse, then, elongation distortion at any location can be measured. According to the invention, the pumping pulse is applied to the cable to be tested from both the ends of the cable with one of the pumping pulse delayed according to the desired location for meeting of two pulses. At one end of the cable, the arrival time t.sub.1 and t.sub.2 is observed, where t.sub.1 is the arrival time of the stokes pulse and t.sub.1 +t.sub.2 is the arrival time of the pumping pulse. The distribution of elongation (d.DELTA.z/dz) is obtained by calculating the equations z=k.sub.1 t.sub.1 -k.sub.2 t.sub.2, and .DELTA.z=k.sub.3 t.sub.2 -k.sub.4 t.sub.1, where k.sub.1, k.sub.2, k.sub.3 and k.sub.4 are constants, z is the length between the end and the location to be tested, and .DELTA.z is the elongation of the cable of the length z.
摘要翻译：通过使用受激拉曼效应的原理来测量光纤电缆的任何位置处的伸长失真，其中当具有相同的泵浦光束和种子光束时，产生具有与泵浦光束的频率差小的频率差的斯托克斯光束频率与斯托克斯光束的频率在像光纤电缆那样的拉曼材料中相遇。由于用于泵浦光束的光纤电缆的组折射率与斯托克斯光束的折射率不同，所以通过观察泵浦光束和斯托克斯光束到达的时间差来测量电缆的伸长率。可以仅通过移动泵浦脉冲来调节泵浦梁与斯托克斯梁相遇的位置，然后可以测量任何位置处的伸长失真。根据本发明，泵浦脉冲从电缆的两端施加到要测试的电缆，其中一个泵浦脉冲根据期望的位置延迟以满足两个脉冲。在电缆的一端，观察到到达时间t1和t2，其中t1是斯托克斯脉冲的到达时间，t1 + t2是泵浦脉冲的到达时间。通过计算公式z = k1t1-k2t2和DELTA z = k3t2-k4t1获得伸长分布（d DELTA z / dz），其中k1，k2，k3和k4是常数，z是端部和要测试的位置，DELTA z是长度为z的电缆的伸长率。

3. 发明授权

US4798969A Power feed system in transmission line between terminals of three-terminal station 失效
标题翻译：三站终端传输线馈电系统
公开(公告)号：US4798969A
公开(公告)日：1989-01-17
申请号：US151619
申请日：1988-02-02
申请人： Yoshiyuki Inoue , Masaaki Takahashi , Koichi Tatekura , Hitoshi Nishikawa , Hajime Ohta , Yoshikazu Kogure
发明人： Yoshiyuki Inoue , Masaaki Takahashi , Koichi Tatekura , Hitoshi Nishikawa , Hajime Ohta , Yoshikazu Kogure
IPC分类号： H04B3/44 , H02J3/36
CPC分类号： H04B3/44 , Y10T307/511 , Y10T307/74
摘要： A transmission line between terminals of a three-terminal station is branched by a branching unit and power is transmitted between the terminals of the three-terminal station and a power feed system in the transmission line including: a switch for switching a power feed line feeding power to a repeater between a both-end power feed mode and a single-end power feed mode; and connection holding means for holding a power feed connection state without change upon an occurrence of a failure.
摘要翻译：三端站的端子之间的传输线由分支单元分支，并且在三端站的端子和传输线路中的馈电系统之间传输电力，包括：用于切换馈电线馈电的开关在两端供电模式和单端供电模式之间向中继器供电; 以及连接保持装置，用于在发生故障时不改变地保持供电连接状态。

4. 发明授权

US4505540A Spliced portion housing structure for optical fiber in optical submerged repeater 失效
标题翻译：光接收式中继器光纤接头部分外壳结构
公开(公告)号：US4505540A
公开(公告)日：1985-03-19
申请号：US340350
申请日：1982-01-18
申请人： Kahei Furusawa , Makoto Nunokawa , Yoshihiro Ejiri , Hitoshi Yamamoto , Yoshihiko Yamazaki , Koichi Tatekura
发明人： Kahei Furusawa , Makoto Nunokawa , Yoshihiro Ejiri , Hitoshi Yamamoto , Yoshihiko Yamazaki , Koichi Tatekura
IPC分类号： G02B6/24 , G02B6/44 , H02G15/08 , H02G15/14 , G02B5/14 , G02B7/26
CPC分类号： G02B6/4448
摘要： A spliced portion housing structure for an optical fiber in an optical submerged repeater, characterized in that, in order to splice together in a joint ring an optical fiber and a power-supplying feeder from the optical submerged repeater to an optical fiber and a power-supplying feeder of a tail cable from a cable coupling of an optical submarine cable, respectively, a joint chamber is provided on an end plate of a housing of the optical submerged repeater in such a manner that the end plate forms a part of the joint chamber; the optical fiber and the power-supplying feeder from the submerged repeater are introduced into the joint chamber through a first feedthrough provided in the end plate for hermetically introducing the optical fiber and the power-supplying feeder; the tail cable from the cable coupling is hermetically introduced into the joint chamber through a second feedthrough provided in the wall of the joint chamber so that the tail cable is insulated from the joint chamber, the optical fibers and the feeders pulled into the joint chamber from both of the first and second feedthroughs are respectively spliced together while being isolated from each other and housed in the joint chamber; the optical fiber spliced portion is fixed to a cage mounted in the joint chamber; and the joint chamber is formed to have a water pressure resisting and airtight structure.
摘要翻译：一种用于光学浸没式转发器中的光纤的接合部分壳体结构，其特征在于，为了将接头环中的光纤和从所述光学浸没式中继器馈送到光纤的功率供给馈送器连接在一起，分别从光学海底电缆的电缆耦合器供给尾缆的馈线，接合室设置在光学浸没式中继器的壳体的端板上，使得端板形成接头室的一部分 ; 来自浸没式中继器的光纤和供电给料器通过设置在端板中的用于气密地引入光纤和供电馈送器的第一馈通引入接头室; 来自电缆耦合器的尾部电缆通过设置在接头室的壁中的第二馈通气密地引入接头室，使得尾部电缆与接头室绝缘，光纤和馈线从接头室中拉出第一和第二馈通两者分别拼接在一起，同时彼此隔离并容纳在关节室中; 光纤接合部固定在安装在接头室内的保持架上; 并且所述接合室形成为具有耐水压力和气密结构。

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