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1. 发明专利

JPS5974520A Observing method of optical fiber end face 失效
标题翻译：光纤端面观察方法
公开(公告)号：JPS5974520A
公开(公告)日：1984-04-27
申请号：JP18365282
申请日：1982-10-21
申请人： Nippon Telegr & Teleph Corp , Sumitomo Electric Ind Ltd
发明人： USUI HIROICHI , KAKII TOSHIAKI , MATSUNO KOUICHIROU , TACHIKURA MASAO , HIRAI MASATAKA
IPC分类号： G02B6/24 , G02B6/00 , G02B6/38 , G02B21/00
CPC分类号： G02B6/3803
摘要： PURPOSE:To observe simultaneously both end faces of optical fibers facing each other, by forming mirror faces in the end part of a butting rod in two directions facing each other at about 45 deg. to the axis of the butting rod. CONSTITUTION:Optical fibers 1 and 1' are brought into contact with both side faces of a butting rod 9 where mirror faces 10 and 10' are formed in two directions facing each other at 45 deg. and optical fibers 1 and 1' are positioned. Thereafter, the butting rod 9 is allowed to fall, and mirror faces 10 and 10' are placed between end faces of optical fibers 1 and 1'. When they are observed by a microscope 4 provided above the butting rod 9, side faces 12 and 12' of optical fibers 1 and 1' and images 11 and 11' of end faces of optical fibers 1 and 1' projected to mirror faces 10 and 10' are observed in the visual field. In this case, lengths l and l' from the center of the visual field to images 11 and 11' are measured and are compared with each other to discriminate whether they are equal to each other, thereby confirming whether optical fibers 1 and 1' are shifted axially or not.
摘要翻译：目的：为了同时观察光纤的两个端面，通过在约45度的面对面的两个方向上在对接杆的端部中形成镜面。到对接杆的轴线。构成：光纤1和1'与对接杆9的两个侧面接触，其中镜面10和10'形成在相对于45度的两个方向上。并且光纤1和1'被定位。此后，允许对接杆9落下，并且将镜面10和10'放置在光纤1和1'的端面之间。当通过设置在对接杆9上方的显微镜4观察时，将光纤1和1'的侧面12和12'以及光纤1和1'的端面的图像11和11'投影到镜面10和 10'在视野中观察到。在这种情况下，测量从视野中心到图像11和11'的长度l和l'并将它们彼此进行比较以区分它们是否彼此相等，从而确认光纤1和1'是否为轴向或不轴向移动。

2. 发明专利

JPS59111603A Multicore batch cutter of optical fiber 失效
标题翻译：多光纤光栅切割机
公开(公告)号：JPS59111603A
公开(公告)日：1984-06-27
申请号：JP22228582
申请日：1982-12-17
申请人： Nippon Telegr & Teleph Corp , Sumitomo Electric Ind Ltd
发明人： MATSUNO KOUICHIROU , USUI HIROICHI , KAKII TOSHIAKI , TACHIKURA MASAO
IPC分类号： B26F3/00 , G02B6/00 , G02B6/245 , G02B6/25 , G02B6/44
CPC分类号： G02B6/245 , G02B6/25
摘要： PURPOSE:To carry out the multicore batch cutting of optical fibers by pressing a cutting box and applying a cutting edge to the surfaces of plural parallel optical fibers successively. CONSTITUTION:The blade 2 having a downward circular-arcuate edge 3 in the cutting box 1 is provided engaging a shaft 6 by a spring 7. The coating end 23 of a tape-shaped optical fiber core 22 wherein terminal parts of plural optical fibers 20 are exposed by removing a protection coating 21 on a leaf spring 10 is set abutting to a stop member 15 and then the box 1 is pressed down, so that a press plate 13 abuts to the optical fibers 20 firstly. Then, the optical fiber core 22 and leaf spring 10 are held and drawn out to the front side and the optical fibers are squeezed with the press plate to be arrayed orderly; and the box is further pressed and the optical fibers 20 are given cutting flaws by the cutting edge 2. Then, the leaf spring 10 and core 22 are bent on a slanting surface 16 to cut the optical fibers 20 at the cutting flaws at a time.
摘要翻译：目的：通过按压切割箱并将切割刃连续地施加到多个平行光纤的表面来进行光纤的多芯批量切割。构成：在切割箱1中具有向下圆弧形边缘3的刀片2通过弹簧7设置在轴6上。带状光纤芯22的涂覆端23，其中多根光纤20的端部通过移除板簧10上的保护涂层21而露出，与止动构件15抵接，然后将箱1压下，使得压板13首先与光纤20抵接。然后，将光纤芯22和板簧10保持并拉出到前侧，并且用压板挤压光纤以排列有序; 并且进一步按压箱体，并且通过切割刃2给予光纤20切割缺陷。然后，板簧10和芯22在倾斜表面16上弯曲，以一次切割光纤20处于切割缺陷处。

3. 发明专利

JPS5975214A Reinforcing method of optical fiber arc welding connection part 失效
标题翻译：光纤焊接连接部分加固方法
公开(公告)号：JPS5975214A
公开(公告)日：1984-04-27
申请号：JP18579682
申请日：1982-10-22
申请人： Nippon Telegr & Teleph Corp , Sumitomo Electric Ind Ltd
发明人： KAKII TOSHIAKI , USUI HIROICHI , MATSUNO KOUICHIROU , TACHIKURA MASAO
IPC分类号： G02B6/24 , G02B6/255 , G02B6/38
CPC分类号： G02B6/2558 , G02B6/2551
摘要： PURPOSE:To reduce transmission loss and to improve reliability for a long period by reinforcing an arc welding connection part while tensile force is loaded on both ends of an arc welding connected optical fiber core. CONSTITUTION:A core 1 is drawn previously by 200g tensile force 4 and while a bare fiber 2 is tensed without curvature, the arc welding connection part 5 is reinforced by a reinforcing method in which a heat shrinkable tube is used as a reinforcing member 3. Consequently, this method wherein the tensile force is loaded prevents the curvature of the bare fiber part 2 and suppress an increase in transmission loss due to the reinforcement to
摘要翻译：目的：通过在电弧焊接连接的光纤芯的两端加载拉力来加强电弧焊连接部分，以减少传输损耗并提高可靠性。构成：预先通过200g拉伸力4将芯体1拉出，而当裸露的纤维2没有曲率地拉紧时，通过使用热收缩管作为加强构件3的增强方法来加强电弧焊接接部5。因此，其中加载张力的方法防止裸光纤部件2的曲率，并且抑制由于加强而导致的传输损耗增加到<= 0.01dB，而其中未加载拉力4的方法导致约0.06 估计由裸光纤2的曲率引起的传输损耗的dB增加。此外，由于约200g张力4引起的电弧焊接接部5断开的速率为<= 1％，张力被加载到消除诸如破裂等麻烦。

4. 发明专利

JPS5972413A Positioning jig of optical fiber 失效
标题翻译：光纤定位镜
公开(公告)号：JPS5972413A
公开(公告)日：1984-04-24
申请号：JP18342582
申请日：1982-10-19
申请人： Fujikura Ltd , Furukawa Electric Co Ltd:The , Nippon Telegr & Teleph Corp , Sumitomo Electric Ind Ltd
发明人： SEIKE TAKEO , HAIBARA TADASHI , TACHIKURA MASAO , TATEGAMI SHIGERU , YAMADA TAKESHI
IPC分类号： G02B6/24 , G02B6/38
CPC分类号： G02B6/2555 , G02B6/3616 , G02B6/3652
摘要： PURPOSE:To execute exactly and easily positioning of an optical fiber by providing an auxiliary groove so as to cross a positioning groove of a jig body, and fitting a holding member into the auxiliary groove. CONSTITUTION:An auxiliary groove 12 is provided so as to cross a V-shaped positioning groove 11 of a jig body 1, and a plate-like holding member 14 is fitted into this groove so as to be inserted and drawn out freely. The member 14 is fitted so as to be slidable to a supporting frame 15 through a spring 16, and the supporting frame 15 is attahced pivotally to the tip of a rocking arm 17. When the holding member 14 is inserted from the upper part, it is made to press-contact with just the upper face of an optical fiber (a) in a state that its holding face 13 reaches the bottom of the positioning groove 11. Therefore, the holding face 13 can be made sufficiently longer than the diameter of the optical fiber (a), the fiber (a) is not detached from the holding face 13, and the positioning can be executed exactly and easily.
摘要翻译：目的：通过提供辅助槽来跨越夹具本体的定位槽，并且将保持构件装配到辅助槽中，来精确且容易地定位光纤。构成：辅助槽12设置成与夹具本体1的V形定位槽11交叉，并且板状保持构件14嵌合在该槽中以便自由地插拔。构件14通过弹簧16被安装成能够滑动到支撑框架15，并且支撑框架15被枢转地固定到摇臂17的尖端。当保持构件14从上部插入时，使其在保持面13到达定位槽11的底部的状态下仅与光纤（a）的上表面压接。因此，保持面13可以制成足够长于光纤（a），光纤（a）不从保持面13脱离，能够精确，容易地进行定位。

5. 发明专利

JPS5924815A Connecting method of optical fibers by arc welding 失效
标题翻译：光电焊接光纤连接方法
公开(公告)号：JPS5924815A
公开(公告)日：1984-02-08
申请号：JP13484382
申请日：1982-08-02
申请人： Nippon Telegr & Teleph Corp , Sumitomo Electric Ind Ltd
发明人： KAKII TOSHIAKI , YAMANISHI TOORU , SUZUKI SHIYUUZOU , HAIBARA TADASHI , TACHIKURA MASAO , KAWADA OSAMU
IPC分类号： G02B6/24 , G02B6/245 , G02B6/255
CPC分类号： G02B6/2551 , G02B6/245
摘要： PURPOSE:To improve the strength in the juncture of optical fibers to be connected by arc welding and to decrease light loss by heating the end parts of the optical fibers to the m.p. thereof or below, and cleaning the fibers by removing the org. materials and moisture sticking on the surfaces thereof then arc welding the end parts. CONSTITUTION:The optical fibers 2 having optical fiber cores 1 to be connected by arc welding are set in a V-groove 4, and the forward end parts thereof are heated to the m.p. of the optical fiber glass or below by a heater 6 for preliminary heating. The org. materials remaining on the surfaces of the fibers 2 without stripping, for example, coatings, etc. are removed and moisture is removed as well to clean the surfaces. The predischarge by electrodes 3 is effected for a short time of about 0.2sec, whereafter main discharge is effected for about 5sec to connect the end parts by melt sticking. The impurities are thus thoroughly removed from the melt-stuck parts by the preheating, and the end faces to be connected are shaped by the predischarge, whereby the joining strength is remarkably improved and the light loss by the connection is decreased.
摘要翻译：目的：提高通过电弧焊接连接的光纤接合处的强度，并通过将光纤端部加热至m.p. 或以下，并且通过除去组织来清洁纤维。材料和水分粘附在表面上，然后电弧焊接端部。构成：将通过电弧焊接连接的光纤芯1的光纤2设定在V形槽4中，将其前端加热至m.p. 的玻璃纤维或以下的加热器6进行预热。组织机构除去未剥离的纤维2的表面上残留的材料，例如涂层等，并除去水分以清洁表面。通过电极3的预充电进行约0.2秒的短时间，然后通过熔融粘附主要放电约5秒连接端部。因此通过预热将杂质彻底地从熔融粘合部分除去，并且通过预充电来形成要连接的端面，从而显着提高接合强度，并且连接的光损失降低。

6. 发明专利

JPS59116029A Method for detecting disconnection during reinforcing connection part of optical fiber 失效
标题翻译：检测光纤连接部分断开的方法
公开(公告)号：JPS59116029A
公开(公告)日：1984-07-04
申请号：JP22542482
申请日：1982-12-22
申请人： Nippon Telegr & Teleph Corp , Sumitomo Electric Ind Ltd
发明人： MATSUNO KOUICHIROU , USUI HIROICHI , KAKII TOSHIAKI , TACHIKURA MASAO , KASHIMA GIYUU
IPC分类号： G01M11/00 , G02B6/24
CPC分类号： G01M11/33
摘要： PURPOSE:To detect exactly and rapidly the disconnection of an optical fiber by setting together plural fiber cores to a photodetector. CONSTITUTION:Light is made incident to each fiber 8 separated from a light source end 13 of optical fiber core wires 6, 6'. Each fiber core 8 of the wires 6, 6' is connected together by melting at the connection point 10. Then both ends of a reinforcing tube 3 inserted previously to the part 10 are converted to the covers of the wires 6, 6', the light is made incident from a light source 9 to each fiber core 8, the core 8 is bundled at a distant end 11 of the wire 6 and set to the photodetector 12, and the total light output of each core 8 is measured. After the measurement, the tube 3 is heated to reinforce the part 10, and the total light output is measured again. The wire disconnection is detected from the light output ratio before and after this reinforcing treatment.
摘要翻译：目的：通过将多个光纤芯线组合到一个光电探测器上，准确快速地检测光纤的断开。构成：将光从入射到与光纤芯线6,6'的光源端13分离的每个光纤8。电线6,6'的每个纤维芯8通过在连接点10处熔化而连接在一起。然后，预先插入到部件10的加强管3的两端被转换成电线6,6'的盖，光从光源9入射到每个光纤芯8，芯8被束缚在导线6的远端11处并设置到光电检测器12，并且测量每个芯8的总光输出。在测量之后，加热管3以加强部分10，并再次测量总光输出。从该加强处理前后的光输出比检测出断线。

7. 发明专利

JPS5974518A Connecting method of multiple cores of optical fiber core by blanket arc welding 失效
标题翻译：光纤弧焊多芯光纤连接方法
公开(公告)号：JPS5974518A
公开(公告)日：1984-04-27
申请号：JP18365082
申请日：1982-10-21
申请人： Nippon Telegr & Teleph Corp , Sumitomo Electric Ind Ltd
发明人： ASANO YASUO , SEIKE TAKEO , MATSUNO KOUICHIROU , TACHIKURA MASAO
IPC分类号： G02B6/24 , G02B6/25 , G02B6/255
CPC分类号： G02B6/2551 , G02B6/25
摘要： PURPOSE:To connect plural optical fiber strands collectively with arc welding, by fixing optical fiber strands after a secondary coating is removed to expose plural optical fiber strands and cutting them to true up connection end faces. CONSTITUTION:In the state where a secondary coating 2 is removed in the end part of a tape-shaped optical fiber core 1 to expose plural optical fiber strands 3, end face positions of strands 3 are normally irregular. A terminal reinforcing tool 4 is molded to be laid across exposed parts of strands 3 and the secondary coating 2 to fix them to each other, and optical fiber strands 3 are cut to an even length to true up their end face positions. Optical fiber cores 1 and 1' where end face positions of strands are trued up in this manner are allowed to face each other, and electricity is discharged from discharge electrodes 5 and 5' between which the gap of end faces is interposed as a discharge space, thus connecting plural optical fiber strands 3 collectively with arc welding.
摘要翻译：目的：通过电弧焊接将多根光纤线束连接在一起，通过在除去二次涂层之后固定光纤线束以暴露多根光纤线束并将其切割成真实的连接端面。构成：在带状光纤芯1的端部除去二次涂层2以暴露多根光纤线束3的状态下，线股3的端面位置通常是不规则的。端子加强工具4被模制成横过线束3的暴露部分和次级涂层2以彼此固定，并且将光纤线3切割成均匀的长度以使其端面位置真实。以这种方式修整线束的端面位置的光纤纤芯1和1'彼此面对，并且从放置电极5和5'排出电，其间插入端面间隙作为放电空间，从而将多根光纤线束3共同地电弧焊接。

8. 发明专利

JPS5944003A Method and device for removing coating of optical fiber core 失效
标题翻译：用于去除光纤芯的涂层的方法和装置
公开(公告)号：JPS5944003A
公开(公告)日：1984-03-12
申请号：JP15433682
申请日：1982-09-03
申请人： Nippon Telegr & Teleph Corp , Sumitomo Electric Ind Ltd
发明人： TACHIKURA MASAO , MATSUNO KOUICHIROU
IPC分类号： H01B7/08 , G02B6/00 , G02B6/245 , G02B6/44 , H02G1/12
CPC分类号： G02B6/245
摘要： PURPOSE:To obtain a removing device which removes the secondary coating of the core of an optical fiber without any breaking by intruding two cutting edges for the coated layer into the secondary coating and cutting it into two. CONSTITUTION:The core is inserted from an opening part 14 so that side faces 9 and 10 are directed to share points 6 and 7, and it is further inserted into above guide grooves 15 and 16; and the removing device 19 consisting of blocks 11 and 12 is gripped and the block 11 is pressed down to clamp both blocks. Then, the opening part 14 which is opened by a spring 13 is closed and while the core 8 is fitted closely in the guide part consisting of the guide grooves 15 and 16, the share points 6 and 7 are arranged opposite at a specific interval to bite into the secondary coating of the core 8. The opening part 14 is closed to store the core 8 in the guide part of the guide grooves 15 and 16 and when the removing device 19 is moved in the lengthwise direction of the core 8, the side faces 9 and 10 are cleaved. Then, the secondary coating 3 split into two is cut with a pair of scissors or a cutter.
摘要翻译：目的：获得一种去除装置，其通过将用于涂层的两个切割边缘侵入二次涂层并将其切割成两个来除去光纤芯的二次涂层，而不会发生任何破裂。构成：将芯从开口部14插入，使得侧面9和10被引导以共享点6和7，并且其进一步插入到上述引导槽15和16中; 并且夹持由块11和12组成的移除装置19，并且块11被压下以夹紧两个块。然后，由弹簧13打开的开口部14闭合，并且当芯8紧密地配合在由引导槽15和16构成的引导部中时，共享点6和7以特定的间隔相对布置咬入到芯8的二次涂层中。打开部14被封闭以将芯8存储在引导槽15和16的引导部分中，并且当移除装置19沿着芯8的长度方向移动时，侧面9和10被切开。然后，用一对剪刀或切割器切割分成两层的二次涂层3。

9. 发明专利

JP2008015338A Optical fiber cord and method of removing its coating 有权
标题翻译：光纤光栅及其涂层方法
公开(公告)号：JP2008015338A
公开(公告)日：2008-01-24
申请号：JP2006188105
申请日：2006-07-07
申请人： Hitachi Cable Ltd , Nippon Telegr & Teleph Corp , 日本電信電話株式会社 , 日立電線株式会社
发明人： TACHIKURA MASAO , KUROSAWA YOSHINORI , HIRAMATSU KATSUMI , TOMITA SHIGERU , KURASHIMA TOSHIO
IPC分类号： G02B6/44 , G02B6/00
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber cord and a method of removing its coating, wherein coating removal properties are improved in the optical fiber cord of a tight type structure without impairing tensile strength and flexural rigidity. SOLUTION: Onto the periphery of the core fiber 11 of an optical fiber, for which a core fiber coating 13 is applied to the exterior of the optical fiber 12, a polyethylene fiber of ultrahigh molecular weight is vertically attached or spirally wound, forming a nearly concentric circular polyethylene fiber layer 15 of the ultrahigh molecular weight. From the outside of this formation, an ultraviolet ray setting resin 16 is impregnated and hardened to form a fiber reinforcing layer 14. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决的问题：为了提供一种光纤线缆及其涂层去除方法，其中在紧密型结构的光纤帘线中的涂层去除性能得到改善，而不损害拉伸强度和抗弯刚度。解决方案：将芯纤维涂层13施加到光纤12的外部的光纤的芯纤维11的周围，将超高分子量的聚乙烯纤维垂直地附着或螺旋卷绕，形成超高分子量的近似同心的圆形聚乙烯纤维层15。从该层的外侧，紫外线固化树脂16被浸渍并硬化以形成纤维增强层14.版权所有（C）2008，JPO＆INPIT

10. 发明专利

JP2007213086A Optical fiber, method of splicing optical fibers, and optical connector 有权
标题翻译：光纤，分离光纤的方法和光连接器
公开(公告)号：JP2007213086A
公开(公告)日：2007-08-23
申请号：JP2007086819
申请日：2007-03-29
申请人： Hitachi Cable Ltd , Nippon Telegr & Teleph Corp , 日本電信電話株式会社 , 日立電線株式会社
发明人： KUROSAWA YOSHINORI , YO HEI , OSONO KAZUMASA , TACHIKURA MASAO , NAKAI HISANORI , KURASHIMA TOSHIO , ARAKI EIJI , HIRAMATSU KATSUMI
IPC分类号： G02B6/00 , G02B6/02 , G02B6/032 , G02B6/36
摘要： PROBLEM TO BE SOLVED: To provide: a photonic crystal optical fiber capable of being spliced with the conventional single mode optical fiber at low loss; a method of splicing the photonic crystal optical fiber and the single mode optical fiber; and an optical connector. SOLUTION: The core and the clad of the optical fiber are formed of quartz having the same refractive index, the core is formed by periodically arranging a plurality of holes 13 from the center along the fiber axis direction in a hexagonal lattice form, and a crystal defect is formed at the center, wherein the holes 13 are arranged from the center in a hexagonal lattice form of four periods, the diameter of the clad is 125 μm, the diameter of the pores 13 is 3 μm, the refractive index of the clad is 1.458, and the holes 13 in the vicinity of a spliced part 12 are filled with fluorine-containing ultraviolet-setting resin 14 whose the refractive index after curing is 1.42. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：解决的问题：提供：能够以低损耗与常规单模光纤拼接的光子晶体光纤; 一种拼接光子晶体光纤和单模光纤的方法; 和光连接器。解决方案：光纤的芯和包层由具有相同折射率的石英形成，芯通过以六边形格子形式沿着纤维轴方向从中心周期性地布置多个孔13而形成，并且在中心处形成晶体缺陷，其中孔13以四个周期的六边形格子形式从中心布置，包层的直径为125μm，孔13的直径为3μm，折射率的包层为1.458，接合部12附近的孔13填充有固化后的折射率为1.42的含氟紫外线固化树脂14。版权所有（C）2007，JPO＆INPIT

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