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1. 发明专利

JPS61137080A Failure position measuring apparatus 失效
标题翻译：故障位置测量装置
公开(公告)号：JPS61137080A
公开(公告)日：1986-06-24
申请号：JP25883784
申请日：1984-12-07
申请人： Nippon Telegr & Teleph Corp
发明人： ARAI TAKASHI , TOKUDA MASAMITSU , KURIBAYASHI HITOSHI , TAIRA HIROKI , KAWAGUCHI TOKIHIRO
IPC分类号： G01R31/08
摘要： PURPOSE: To measure accurately a failure position, by sending out pulses simulta neously to the reference core acommodated in the same cable with a failed core and extracting only reflecting pulses in the position of failure from a decrement of the reflecting pulses from both cores.
CONSTITUTION: An output of a pulse emittor 1 is fed into a transformer T and are of the side wound wires of the transformer T is connected to a failed core 13 and to other side wound wire, the reference core 14 held in the same cable as the failed core. The center point of the transformer T is connected to an amplifier 4. Pulses sent out from the circuit 1 are sent out simultaneously to the failed core 13 and the reference core 14. Pulses to the core 13 return to the transformer T after reflected by bridge tap points 13a, 13b and failed point 13c. Pulses to the reference core 14 return back to the transformer T after reflected by bridge top points 14a, 14b. To a local side wound wire of the transformer T, only the reflected pulses from the failed point 13c returns.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：为了准确测量故障位置，通过同时发射脉冲同一根电缆与参考核心发生故障的核心，并从两个核心的反射脉冲的减少中仅提取故障位置的反射脉冲。构成：将脉冲发射器1的输出馈送到变压器T中，并且变压器T的侧绕线被连接到故障芯13和另一侧绕线，参考铁芯14保持在与失败的核心变压器T的中心点连接到放大器4.从电路1发出的脉冲同时发送到故障磁芯13和参考磁芯14.到核心13的脉冲返回到变压器T，由桥梁反射分接点13a，13b和故障点13c。参考芯14的脉冲在由桥顶点14a，14b反射后返回到变压器T. 对于变压器T的局部侧绕线，只有来自故障点13c的反射脉冲返回。

2. 发明专利

JPS5969710A Manufacture of multicore optical fiber connector 失效
标题翻译：多光纤光纤连接器的制造
公开(公告)号：JPS5969710A
公开(公告)日：1984-04-20
申请号：JP18001182
申请日：1982-10-15
申请人： Nippon Telegr & Teleph Corp
发明人： IMON KENGO , TOKUDA MASAMITSU , MATSUMURA YASUNARI
IPC分类号： G02B6/24 , G02B6/28 , G02B6/36 , G02B6/38
CPC分类号： G02B6/2808
摘要： PURPOSE:To execute easily and with high accuracy positioning of an optical fiber strand by inserting a tapered part of a core which is bundled in a fixed shape and is subjected to heating wire-drawing, into a small diameter hole of a connector, forming them as one body by an adhesive, and thereafter, polishing the end face. CONSTITUTION:Exposed strands 3 of plural optical fiber cores 1 are made to pass through a heat contacting tube 8, are set temporarily, and the smallest diameter part of a tapered part formed by heating, elongating and wire-diawing them is cut, and is inserted into a positioning hole 7 of a connector body 6. By feeding the core 1 until the tapered part 11 of the strand 3 projects from the tip of the hole 7, a diameter of the hole 7 can be set so that a gap between the hole 7 and the strand 3 becomes minimum, and the positioning accuracy of the strand can be made very high. Subsequently, the connector 6 and the core 1 is formed as one body by an adhesive, and the end face is polished, by which the connector is finished. Accordingly, a connection loss can be made extremely small.
摘要翻译：目的：通过将固定成形并被加热拉丝的芯体的锥形部分插入到连接器的小直径孔中，使光纤线束的容易并且高精度地定位，形成它们通过粘合剂作为一体，然后对端面进行研磨。构成：使多根光纤芯1的裸线3通过热接触管8，暂时设定，并且通过加热，拉伸和拉丝而形成的锥形部的最小直径部分被切断，并且是插入连接器主体6的定位孔7.通过馈送芯1直到线束3的锥形部分11从孔7的顶端突出，孔7的直径可以被设定为孔7和股3变得最小，并且股线的定位精度可以非常高。随后，连接器6和芯1通过粘合剂形成为一体，并且端面被抛光，由此连接器被完成。因此，可以使连接损失极小。

3. 发明专利

JPS5958404A Method and device for nonbreak detection of optical fiber propagating light 失效
标题翻译：用于不检测光纤传播光的方法和装置
公开(公告)号：JPS5958404A
公开(公告)日：1984-04-04
申请号：JP17070782
申请日：1982-09-29
申请人： Nippon Telegr & Teleph Corp
发明人： YAMASHITA KATSUYA , HATANO YOSHINORI , TOKUDA MASAMITSU
IPC分类号： G01B11/00 , B25B7/00 , G02B6/00 , G02B6/02 , G02B6/28 , G02B6/42 , H04B10/07 , H04B10/079
CPC分类号： G02B6/4201 , G02B6/4259 , G02B6/4286 , G02B6/4287
摘要： PURPOSE:To detect radiation power effectively by dividing the curved part of an optical fiber into two stages, radiating light from inside a core part to a cover body at the 1st curved part, and arranging a photodetector at the 2nd curved part. CONSTITUTION:The optical fiber 1 has the 1st and the 2nd curved parts 5 and 6 at middle parts and the photodetector 4 is arranged outside the 2nd curved part 6. Popagating light 2a incident from the incidence end of the optical fiber 1 is radiated partially from the core part 1a at the 1st curved part 5 and converted to a mode wherein the light propagates in the cover body 1c. The light 2d propagating in the cover body 2 is emitted from the cover body 1c to the outside space at the 2nd curved part 6 by the curvature. Further, a part of light 2a propagating in the core part 1a is radiated externally at the 2nd curved part 6 and added to the light radiated from the curved part 6. Thus, the radiation power is detected efficiently.
摘要翻译：目的：通过将光纤的弯曲部分分成两个阶段来有效地检测辐射功率，在第一弯曲部分将光从芯部内部照射到盖主体，并将光电检测器布置在第二弯曲部分。构成：光纤1在中间部分具有第一和第二弯曲部分5和6，并且光电检测器4布置在第二弯曲部分6的外部。从光纤1的入射端入射的波峰光2a部分地从在第一弯曲部分5处的芯部1a，并转换成其中光在盖体1c中传播的模式。在盖体2中传播的光2d从盖主体1c向第二弯曲部6的外部空间发射曲率。此外，在芯部1a中传播的一部分光2a在第二弯曲部6向外部辐射，并且与从弯曲部6发射的光相加。因此，有效地检测辐射功率。

4. 发明专利

JPS5910918A Manufacture of optical fiber connector plug 失效
标题翻译：光纤连接器插头的制造
公开(公告)号：JPS5910918A
公开(公告)日：1984-01-20
申请号：JP12074482
申请日：1982-07-12
申请人： Nippon Telegr & Teleph Corp
发明人： IMON KENGO , TOKUDA MASAMITSU
IPC分类号： G02B6/38
CPC分类号： G02B6/3855
摘要： PURPOSE:To avoid several problems causing by the use of adhesive agents and to manufacture easily plugs with high accuracy, by making the inside diameter of a glass sleeve small by melting and sticking inserted optical fibers and a glass sleeve. CONSTITUTION:When one end face of a glass sleeve 2 which is cut by a diamond cutter, etc. is heated by a heating source such as arc discharge, the part around the end face is melted and a wall part of the end part of the sleeve 2 is put in the state to be swelled by action of surface tension, and at the same time the inner diameter at the top end side of a hole 3 is uniformly reduced in the circumference direction, as a force acts uniformly in the liquid. The inner diameter of the glass sleeve is reduced to the extent which is slightly larger than the optical fiber and one end of the optical fiber 1 and the end face of the glass sleeve 2 are put together. When each end face is heated by a heating source in this state, the part around the end face is melted and the outside of the optical fibers 1 and the inner face of the sleeve 2 are welded.
摘要翻译：目的：为了避免使用粘合剂引起的几个问题，并通过熔化和粘贴插入的光纤和玻璃套筒使玻璃套筒的内径变小，从而容易地制造出高精度的插头。构成：当通过金刚石切割器等切割的玻璃套筒2的一个端面被诸如电弧放电的加热源加热时，端面周围的部分熔化，并且端部的端部的壁部分套筒2处于由于表面张力的作用而膨胀的状态，同时孔3的顶端侧的内径在圆周方向上均匀地减小，因为力均匀地作用在液体中。玻璃套筒的内径减小到略大于光纤的程度，将光纤1的一端和玻璃套筒2的端面放在一起。当在这种状态下每个端面被加热源加热时，端面周围的部分熔化，并且光纤1的外侧和套管2的内表面被焊接。

5. 发明专利

JPS58199309A Axis aligning method of optical fiber 失效
标题翻译：光纤的轴对准方法
公开(公告)号：JPS58199309A
公开(公告)日：1983-11-19
申请号：JP8236382
申请日：1982-05-18
申请人： Nippon Telegr & Teleph Corp
发明人： TANIFUJI TADATOSHI , TOKUDA MASAMITSU , KATOU YASUYUKI
IPC分类号： G02B6/24 , G02B6/38
CPC分类号： G02B6/3803
摘要： PURPOSE:To improve the work efficiency and to save energy, by making an optical beam incident from a diagonal side to a boundary of two optical fibers to be connected, and executing the axis adjustment so that the detected light quantity of light reflected by the side of one optical fiber and the end face of the other optical fiber becomes minimum. CONSTITUTION:One 4 of optical fibers 2, 4 having secondary coverings 1, 3 is fixed, and the other 2 is supported by a fine adjustment device 8. Optical beams A-C emitted from a light source and a detector 5 are projected from the diagonal side to a boundary of both optical fibers 2, 4. The beam B is emitted to the opposite side of the detector 5, and the beam C is reflected by the side and the end face of the optical fiber, is made incident to the detector 5 and becomes a noize. The beam A for adjusting an axis is reflected by the side of the optical fiber 4 and the end face of the optical fiber 2, and is made incident to the detector. The work efficiency is improved and energy is saved by executing the axis adjustment so that the detected quantity of this reflected light becomes minimum.
摘要翻译：目的：为了提高工作效率和节约能源，通过从对角线入射到要连接的两根光纤的边界的光束，并执行轴调整，使得检测到的光侧反射的光量并且另一根光纤的端面变得最小。构成：具有次级覆盖物1,3的光纤2,4的一个被固定，另一个2由微调装置8支撑。从光源和检测器5发出的光束AC从对角线侧到光纤2,4的边界。光束B被发射到检测器5的相反侧，光束C被光纤的侧面和端面反射，被入射到检测器5 并成为一个noize。用于调节轴的光束A被光纤4的侧面和光纤2的端面反射，并入射到检测器。通过执行轴调整来提高工作效率并节省能量，使得该反射光的检测量变得最小。

6. 发明专利

JPS58198011A Formation for connector plug of optical fiber 失效
标题翻译：光纤连接器插头的形成
公开(公告)号：JPS58198011A
公开(公告)日：1983-11-17
申请号：JP8014082
申请日：1982-05-14
申请人： Nippon Telegr & Teleph Corp
发明人： IMON KENGO , TOKUDA MASAMITSU
IPC分类号： G02B6/38
CPC分类号： G02B6/3803
摘要： PURPOSE:To mass produce the connector of an optical fiber having superir characteristics, by positioning an optical fiber axis on the center of a hole in using surface tension maintained until the hardening of a liquid adhesive and fixing the axis of optical fiber on the center element by utilizing the hardening of the liquid adhesive solution while keeping said state. CONSTITUTION:A cover is removed from the end part of a covered fiber 1 to expose the optical fiber 2 and the vertically set up fiber 2 is inserted into an insertion hole of the center element 3 filled with a liquid adhesive. Since the liquid adhesive accumulated between the inwall of the insertion hole and the periphery of the optical fiber 2 exists on a closed system, the pressure of the solution is fixed in the whole directions by Pascal's principle. When force is applied in the axial direction of the optical fiber 2, distortion is generated on the surface 6 of the liquid adhesive and the center axial of the optical fiber 2 is made coincide with the center axial of the insertion hole by the balance of surface tension at the generation of the distortion. The optical fiber 2 can be fixed highly accurately on the center of the center element 3 by hardening the liquid adhesive under said condition.
摘要翻译：目的：为了大量生产具有超级特性的光纤的连接器，通过将光纤轴定位在孔的中心，使用保持的表面张力直到液态粘合剂硬化并将光纤轴固定在中心元件上通过在保持所述状态的同时利用液体粘合剂溶液的硬化。构成：将覆盖物从覆盖纤维1的端部移除以露出光纤2，并且垂直安装的纤维2插入填充有液体粘合剂的中心元件3的插入孔中。由于积聚在插入孔的内壁和光纤2的周边之间的液体粘合剂存在于封闭系统上，所以溶液的压力通过帕斯卡的原理在整个方向上固定。当在光纤2的轴向上施加力时，在液体粘合剂的表面6上产生变形，并且通过平衡表面使光纤2的中心轴线与插入孔的中心轴线重合张力在产生变形。通过在所述条件下硬化液态粘合剂，可以将光纤2高精度地固定在中心元件3的中心。

7. 发明专利

JPS58196513A Connecting method of multicored optical fibers 失效
标题翻译：多光纤光纤连接方法
公开(公告)号：JPS58196513A
公开(公告)日：1983-11-16
申请号：JP7916082
申请日：1982-05-13
申请人： Nippon Telegr & Teleph Corp
发明人： TOKUDA MASAMITSU , MATSUMOTO MICHITO
IPC分类号： G02B6/24 , G02B6/36 , G02B6/38
CPC分类号： G02B6/2558
摘要： PURPOSE:To enable the connection of optical fibers by forming the part exactly reverse from the part where the forward ends of the fibers project from the forward ends of the other optical fibers, matching the positions of the optical fibers with the outside diameters thereof, and fixing the fitted part with a heat shrinkable tube or the like. CONSTITUTION:A connector plug of the type wherein optical fibers 2, 4 and 6 project forward from optical fibers 1, 3, 5 and 7 and a plug wherein the fibers 1, 3, 5 and 7 are backward by the same length exactly reverse from said plug are formed. The positions of the seven optical fibers are matched with the outside diameters of the optical fibers and a heat shrinkable tube 8 is put on the juncture to retrain the fibers 2-7 and 2'-7', whereby the connection is completed. The optical fibers of the same numbers are connected to each other. The combinations as a connection method in addition to the abovementioned method are permitted. Therefore, if a large connection loss is observed with one combination, the other two combinations may be tested.
摘要翻译：目的：通过与纤维的前端从其他光纤的前端突出的部分正好相反的部分与光纤的外径匹配，使光纤的连接成为可能，并且用热收缩管等固定装配的部件。构成：其中光纤2,4和6从光纤1,3,5和7向前突出的类型的插头，以及插头，其中纤维1,3,5和7向后相反的方向与所述插头形成。这七个光纤的位置与光纤的外径相匹配，并且将热收缩管8放在接合部上以重新拉紧纤维2-7和2'-7'，由此完成连接。相同编号的光纤相互连接。除了上述方法之外，作为连接方法的组合是允许的。因此，如果用一种组合观察到大的连接损耗，则可以测试其他两种组合。

8. 发明专利

JPS58196512A Connecting method of multicored optical fibers 失效
标题翻译：多光纤光纤连接方法
公开(公告)号：JPS58196512A
公开(公告)日：1983-11-16
申请号：JP7915982
申请日：1982-05-13
申请人： Nippon Telegr & Teleph Corp
发明人： TOKUDA MASAMITSU , TANIFUJI TADATOSHI
IPC分类号： G02B6/24 , G02B6/36 , G02B6/38
CPC分类号： G02B6/2558 , G02B6/255 , G02B6/403
摘要： PURPOSE:To enable connection by forming two connector plugs having exactly reverse position relations of forward ends, matching the positions with the outside diameters thereof, fitting the plugs to each other and fixing the same with a heat shrinkable tube. CONSTITUTION:A connector plug I of the type wherein pipes 12, 14 and 16 project from pipes 13, 15, and 17, and a connector plug II wherein the pipes 12, 14 and 16 are recessed by the same length from the pipes 13, 15, 17 exactly reverse from the plug I are formed. If the plugs I and II are fitted to each other, the pipes 12'-14' which are the pipes of the plug II match the positions of optical fibers with their outside diameters. A heat shrinkable tube 18 is put on the outside of the juncture to retain the pipes 12-17 and 12'-17', whereby the connection is completed.
摘要翻译：目的：通过形成具有与前端完全相反的位置关系的两个连接器插头来实现连接，使其位置与外径匹配，将插头彼此嵌合并用可热收缩管固定。构成：其中管道12,14和16从管13,15和17突出的类型的连接器插头I和连接器插头II，其中管12,14和16从管13,13和16凹入相同的长度， 15,17从与其形成的插头I正好相反。如果插头I和II彼此配合，作为插头II的管子的管12'-14'与其外径的光纤的位置相匹配。将热收缩管18放置在接合部的外侧，以保持管12-17和12'-17'，从而完成连接。

9. 发明专利

JPS57122342A Device for measuring transmission characteristic of optical fiber 失效
标题翻译：用于测量光纤传输特性的装置
公开(公告)号：JPS57122342A
公开(公告)日：1982-07-30
申请号：JP837281
申请日：1981-01-21
申请人： Anritsu Corp , Nippon Telegr & Teleph Corp
发明人： TOKUDA MASAMITSU , TANIFUJI TADATOSHI , MORI HIDEO , NAKAYABU SHIYUUICHI , NOMOTO MINORU
IPC分类号： G01M11/02 , G01M11/00
CPC分类号： G01M11/33
摘要： PURPOSE:To measure the characteristics of the optical cable after laying simply, conveniently, and precisely, by alternately switching several base band frequencies to be measured automatically, sending out said frequency, and converting the received output signal into one intermediate frequency. CONSTITUTION:The outputs from oscillators 10-12 are switched by a switch 13 at a period (a), converted 14 into optical signals, and sent to the optical cable 2 to be measured. In the device 3 on the receiving side, the amplified outputs f0-f2 are converted into one intermediate frequency by a mixer 36 and local oscillators 33 and 34. In this case, the frequency of the oscillator 33 is given to the mixer 36 through a switch 35, and the amplitude A0 of the output IF at this time is memorized in a computing device 38. Then the output of the oscillator 34 is given to the mixer 36, and the IF output similar to the case of f0 is obtained with respect to input frequencies f1 and f2. The signals having the amplitudes A1 and A2 are memorized in the computing device 38 through a detector 37. By computing these signal in the computing device 38, the base band loss and the frequency characteristics in the cable 2 are obtained.
摘要翻译：目的：通过交替切换要自动测量的几个基带频率，发出所述频率，并将接收到的输出信号转换为一个中频，以便简单，方便，精确地测量光缆的特性。构成：振荡器10-12的输出由开关13以（a）的周期切换，转换为14，成为光信号，发送到光缆2进行测量。在接收侧的装置3中，放大的输出f0-f2由混频器36和本地振荡器33和34转换成一个中频。在这种情况下，振荡器33的频率通过一个开关35，此时输出IF的振幅A0被存储在计算装置38中。然后，振荡器34的输出被提供给混频器36，并且与f0的情况类似的IF输出是相对于以输入频率f1和f2。具有幅度A1和A2的信号通过检测器37存储在计算装置38中。通过在计算装置38中计算这些信号，获得电缆2中的基带损耗和频率特性。

10. 发明专利

JPS5773633A Light pulse testing device 失效
标题翻译：光脉冲测试装置
公开(公告)号：JPS5773633A
公开(公告)日：1982-05-08
申请号：JP15041780
申请日：1980-10-27
申请人： Nippon Telegr & Teleph Corp
发明人： NAKAZAWA MASATAKA , TOKUDA MASAMITSU , UCHIDA NAOYA
IPC分类号： G01J1/00 , G01M11/00 , G01M11/02 , G02B6/00
CPC分类号： G01M11/3181
摘要： PURPOSE:To obtain the constitution of a less-loss device by interposing an ultrasonic-wave polarizer between a laser light source and the input terminal of an optical fiber and by separating incident light and reflected light reflected in the fiber and emitted. CONSTITUTION:Pulses from a pulse generator 11 are supplied to a Q switch driver 23 through a delay circuit 22. This driver 23 drives a YAG laser 24, and between its output and an objective lens 14, a ultrasonic-wave polarizing element 27 is arranged. The polarizing element 27 is put in operation for an adequate time through a dedicated driver 28 controlled by a pulse control circuit 29 to separate and extract laser scattering light, arriving from an optical fiber 15, from an incident optical path, thereby sending it to a photodetector 16. Its output is passed through an amplifier 17, a box Kerr integrator 18, and a logarithmic amplifier 19 to obtain a drawing on an X-Y plotter 21. Thus, the loss accompanying the separation of the incident light and emitted light is reduced and the device has increased diagnostic distance.
摘要翻译：目的：通过在激光光源和光纤的输入端之间插入超声波偏振器，并通过分离入射光和在光纤中反射的反射光并发射来获得较少损耗器件的结构。构成：来自脉冲发生器11的脉冲通过延迟电路22提供给Q开关驱动器23.该驱动器23驱动YAG激光器24，并且在其输出与物镜14之间布置有超声波偏振元件27 。通过由脉冲控制电路29控制的专用驱动器28使偏振元件27工作足够的时间，从入射光路分离并提取从光纤15到达的激光散射光，从而将其发送到光电检测器16.其输出通过放大器17，盒克尔积分器18和对数放大器19，以获得XY绘图仪21上的图。因此，伴随着入射光和发射光的分离的损失减小，该设备具有增加的诊断距离。

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