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1. 发明专利

JP2006301178A Bend sensor and its manufacturing method 有权
标题翻译：弯曲传感器及其制造方法
公开(公告)号：JP2006301178A
公开(公告)日：2006-11-02
申请号：JP2005120998
申请日：2005-04-19
申请人： Fujikura Ltd , 株式会社フジクラ
发明人： SHIMA KENSUKE , OUCHI YASUHIRO , TANAKA TAIICHIRO
IPC分类号： G02B6/02
摘要： PROBLEM TO BE SOLVED: To provide a bend sensor with which the increase in the optical loss is suppressed and the sensitivity is increased. SOLUTION: The bend sensor is formed with a light leakage part which generates loss variation by the bend to be applied to an optical fiber on the outer peripheral surface of the optical fiber and the bend sensor where the light leakage part forms the shape of holes each of which does not have an excessive length part which does not contribute to the loss variation by the bend to be applied to the optical fiber. Moreover, a manufacturing method of the bend sensor is characterized in that the bend sensor is obtained, by forming the light leakage part forming the shape of holes each of which does not have the excessive length part which does not contribute to the loss variations by the bend to be applied to the optical fiber, while converging laser beams and irradiating the outer peripheral surface of the optical fiber with the converged laser beams. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种弯曲传感器，其中光损耗的增加被抑制并且灵敏度增加。解决方案：弯曲传感器形成有漏光部，该光泄漏部通过对光纤的外周面上的光纤施加的弯曲产生损耗变化，并且弯曲传感器在漏光部形成形状的孔不具有不会由于施加到光纤的弯曲造成的损耗变化的过长部分。此外，弯曲传感器的制造方法的特征在于，通过形成形成孔的形状的漏光部，通过形成不具有不会造成损失变化的过长部分的孔的弯曲传感器，弯曲地施加到光纤，同时会聚激光束并用会聚的激光束照射光纤的外周表面。版权所有（C）2007，JPO＆INPIT

2. 发明专利

JP2006208650A Coated optical fiber ribbon 审中-公开
标题翻译：涂层光纤罗宾
公开(公告)号：JP2006208650A
公开(公告)日：2006-08-10
申请号：JP2005019449
申请日：2005-01-27
申请人： Fujikura Ltd , 株式会社フジクラ
发明人： OUCHI YASUHIRO , SHIMA KENSUKE , ISACHI MIZUKI , FUJIWARA KUNIHIKO , SASAKI KENJI , TANAKA TAIICHIRO
IPC分类号： G02B6/44
摘要： PROBLEM TO BE SOLVED: To provide a technique for improving load resistance characteristic of a single coated optical fiber ribbon.
SOLUTION: The coated optical fiber ribbon 20 is structured such that a plurality of primary coated optical fibers 21 are placed in parallel, that a long protective wire 22 having a larger diameter than the primary coated optical fiber is adjacently arranged to one or both sides of the primary coated optical fibers, and that the optical fibers and the protective wires are coated all together with resin. The coated optical fiber ribbon 20 is characterized in that a part of the long protective wires are situated above a line connecting the upper faces of the plurality of primary coated optical fibers and that another part of the long protective wires are situated below a line connecting the lower faces of the plurality of primary coated optical fibers.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于提高单个涂覆的光纤带的负载电阻特性的技术。解决方案：涂覆光纤带20被构造成使得多个初级涂覆光纤21平行放置，具有比初级涂覆光纤更大的直径的长保护线22被相邻地布置成一个或多个主要涂覆光纤的两侧，并且光纤和保护线都与树脂一起涂覆。涂覆光纤带20的特征在于，长保护线的一部分位于连接多根初级涂覆光纤的上表面的线的上方，并且长保护线的另一部分位于连接多个初级被覆光纤的下表面。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2004309645A Optical fiber coupler and its manufacturing method 审中-公开
公开(公告)号：JP2004309645A
公开(公告)日：2004-11-04
申请号：JP2003100473
申请日：2003-04-03
申请人： Fujikura Ltd , 株式会社フジクラ
发明人： OUCHI YASUHIRO , TANAKA TAIICHIRO
IPC分类号： G02B6/287
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber coupler which is superior in handling such as the connectivity of optical fibers, has low loss, and is made small-sized. SOLUTION: A 2nd optical fiber 19 having a less clad external diameter than 1st optical fibers 17a and 17b is interposed in portions of the 1st optical fibers 17a and 17b, and a fusion drawn part 25 is formed of the 2nd optical fiber 19. COPYRIGHT: (C)2005,JPO&NCIPI

4. 发明专利

JP2004226561A Optical fiber coupler and optical fiber for optical fiber coupler 有权
公开(公告)号：JP2004226561A
公开(公告)日：2004-08-12
申请号：JP2003012664
申请日：2003-01-21
申请人： Fujikura Ltd , 株式会社フジクラ
发明人： ISHII YUTAKA , MATSUMOTO RYOKICHI , TANAKA TAIICHIRO
IPC分类号： G02B6/287 , G02B6/28
CPC分类号： G02B6/2835
摘要： PROBLEM TO BE SOLVED: To provide a fusion splicing type optical fiber coupler, which has superior connectivity with an input/output optical fiber (small coupling loss) and small insertion loss while realizing superior optical characteristics (coupling characteristics in a 1.55 μm band), and an optical fiber for the optical fiber coupler. SOLUTION: The optical fiber coupler which has a fusion drawn part 15 formed by fusing and drawing a 1.55 μm band optical fiber 11 and a 0.98 μm band optical fiber 12 is characterized in that the difference in propagation constant between the optical fibers 11 and 12 having been fused and drawn at the fusion drawn part 15 is ≤10 -4 . COPYRIGHT: (C)2004,JPO&NCIPI

5. 发明专利

JP2006317589A Low electrostatic charging plastic optical fiber, and coated plastic optical fiber ribbon and its manufacturing method 审中-公开
标题翻译：低静电充电塑料光纤和涂层塑料光纤玻璃纤维及其制造方法
公开(公告)号：JP2006317589A
公开(公告)日：2006-11-24
申请号：JP2005138369
申请日：2005-05-11
申请人： Fujikura Ltd , 株式会社フジクラ
发明人： OUCHI YASUHIRO , SHIMA KENSUKE , ISACHI MIZUKI , TANAKA TAIICHIRO
IPC分类号： G02B6/44
摘要： PROBLEM TO BE SOLVED: To provide a low electrostatic charging plastic optical fiber and coated plastic optical fiber ribbon in which problems of electrostatic chargeability and clad separation are improved, and also to provide the manufacturing method.
SOLUTION: The low electrostatic charging plastic optical fiber is characterized in that an antistatic layer composed of a urethane acrylate based resin is provided on the outer circumference of the clad layer of a plastic optical fiber, in which the clad layer is installed on the outer circumference of the clad. The coated plastic optical fiber ribbon is characterized in that a plurality of the low electrostatic charging plastic optical fibers are arranged in parallel and that these fibers are covered altogether in a ribbon shape with an overall coating layer composed of the urethane acrylate based resin.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种低静电充电塑料光纤和涂覆塑料光纤带，其中提高了静电充电性和包层分离的问题，并且还提供了制造方法。解决方案：低静电充电塑料光纤的特征在于，在塑料光纤的包覆层的外周上设置由聚氨酯丙烯酸酯类树脂构成的抗静电层，其中包覆层安装在包层的外圆周。涂布塑料光纤带的特征在于，多个低静电充电塑料光纤平行布置，并且这些纤维完全被覆盖为带状，其中整个涂层由聚氨酯丙烯酸酯基树脂组成。版权所有（C）2007，JPO＆INPIT

6. 发明专利

JP2006208651A Coated plastic optical fiber ribbon 审中-公开
标题翻译：涂层塑料光纤罗宾
公开(公告)号：JP2006208651A
公开(公告)日：2006-08-10
申请号：JP2005019450
申请日：2005-01-27
申请人： Fujikura Ltd , 株式会社フジクラ
发明人： OUCHI YASUHIRO , SHIMA KENSUKE , ISACHI MIZUKI , FUJIWARA KUNIHIKO , SASAKI KENJI , TANAKA TAIICHIRO
IPC分类号： G02B6/44
摘要： PROBLEM TO BE SOLVED: To provide a coated plastic optical fiber ribbon that can reduce deformation of plastic optical fibers under high temperature condition.
SOLUTION: In the coated plastic optical fiber ribbon 10, at least more than one plastic optical fiber 11 and at least more than one shrinkage preventive wire material such as a fused quartz based primary coated optical fiber 12 are placed in parallel and coated altogether with resin. The coated plastic optical fiber ribbon is characterized in that the shrinkage percentage is ≤1.0% after its cut piece of 1 m length is subjected to a temperature of 85°C for 24 hours.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供可以在高温条件下减少塑料光纤的变形的涂覆塑料光纤带。解决方案：在涂覆的塑料光纤带10中，平行放置至少一根塑料光纤11和至少一种以上的收缩防止线材料，例如基于熔融石英的初级涂覆光纤12，并涂覆一共有树脂。涂布塑料光纤带的特征在于，将其长度为1m的切片在85℃的温度下经受24小时后，收缩率≤1.0％。版权所有（C）2006，JPO＆NCIPI

7. 发明专利

JP2006330234A Manufacturing method and manufacture device of plastic coated optical fiber ribbon 审中-公开
标题翻译：塑料包覆光纤玻璃的制造方法和制造装置
公开(公告)号：JP2006330234A
公开(公告)日：2006-12-07
申请号：JP2005152051
申请日：2005-05-25
申请人： Fujikura Ltd , 株式会社フジクラ
发明人： SHIMA KENSUKE , OUCHI YASUHIRO , ISACHI MIZUKI , TANAKA TAIICHIRO
IPC分类号： G02B6/44
摘要： PROBLEM TO BE SOLVED: To manufacture a plastic coated optical fiber ribbon with good yield.
SOLUTION: In a method of manufacturing the plastic coated optical fiber ribbon by arranging a plurality of plastic coated optical fibers in parallel and coating their outer peripheries with an ultraviolet curing resin liquid and hardening the resin liquid to collectively coat the plurality of coated optical fibers, ultraviolet rays irradiation is performed separately a plurality of times when irradiating the resin liquid with ultraviolet rays to harden it. A manufacturing device 10 of the plastic coated optical fiber ribbon has ultraviolet irradiators 16A, 16B, and 16C provided at intervals in a plurality of stages and has such a configuration that the ultraviolet curing resin liquid stepwise while allowing coated optical fibers led out from a die 15 to successively pass the ultraviolet irradiators in the plurality of stages.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：制造具有良好产率的塑料涂层光纤带。解决方案：在制造塑料涂覆光纤带的方法中，平行布置多个塑料涂覆的光纤并用紫外线固化树脂液涂覆其外周，并硬化树脂液体以共同涂覆多个涂覆在用紫外线照射树脂液体以使其硬化的情况下，分别进行多次紫外线照射。塑料涂覆光纤带的制造装置10具有以多个阶段间隔设置的紫外线照射器16A，16B和16C，并且具有使得紫外线固化树脂液体逐步地同时允许从模具引出的被覆光纤的结构 15连续地通过多级的紫外线照射器。版权所有（C）2007，JPO＆INPIT

8. 发明专利

JP2004133389A Polarization maintaining optical fiber coupler and its manufacturing method 审中-公开
公开(公告)号：JP2004133389A
公开(公告)日：2004-04-30
申请号：JP2003199269
申请日：2003-07-18
申请人： Fujikura Ltd , 株式会社フジクラ
发明人： OUCHI YASUHIRO , TANAKA TAIICHIRO
IPC分类号： G02B6/287 , G02B6/28
CPC分类号： G02B6/2835 , G02B6/2843 , G02B2006/2839
摘要： PROBLEM TO BE SOLVED: To provide a polarization maintaining optical fiber coupler and its manufacturing method in which the manufacture is simplified and excess loss is reduced. SOLUTION: In the polarization maintaining optical fiber coupler 30, the ratio of the diameter of a core 21/the diameter of a clad 22 or the ratio of the distance between stress applying parts 23, 23/the diameter of the clad 22 in at least one of the polarization maintaining optical fibers 20 constituting a welded and drawn part 24 is larger than the ratio of the diameter of the core 21/the diameter of the clad 22 or the distance between the stress applying parts 23, 23 or the ratio of the distance between the stress applying parts 23, 23/the diameter of the clad 22 on the part which does not constitute the welded and drawn part 24 of the polarization maintaining optical fibers 20, and the stress applying parts 23, 23 are surrounded by the clad 22 in the welded and drawn part 24. Therein, the polarization maintaining optical fibers in which the distance between the adjacent outer peripheries of the two stress applying parts 23, 23 is ≥20μm are used. COPYRIGHT: (C)2004,JPO

9. 发明专利

JP2004037645A Polarization holding optical fiber coupler 审中-公开
公开(公告)号：JP2004037645A
公开(公告)日：2004-02-05
申请号：JP2002192274
申请日：2002-07-01
申请人： Fujikura Ltd , 株式会社フジクラ
发明人： OUCHI YASUHIRO , TANAKA TAIICHIRO
IPC分类号： G02B6/287
摘要： PROBLEM TO BE SOLVED: To provide a polarization holding optical fiber coupler constituted so that the temperature dependence of insertion loss and polarization dependence are reduced. SOLUTION: In the polarization holding optical fiber coupler 30, a single mode optical fiber part is provided in the midst of one part of a polarization holding optical fiber 10, and compound optical fibers 20 and 20 with which the optical axes of the optical fibers 10 and 10 opposed via the single mode optical fiber part are aligned are arranged in parallel. Then a fusion-drawn part is formed by fusing and drawing the single mode optical fiber part. One of the two optical fibers 20 is a single mode optical fiber. The difference between the mode field diameter of the single mode optical fiber part and that of the optical fiber 10 is set to ≤2.0 μm and connection loss per one spot of the connection part of the single mode optical fiber part and the optical fiber 10 is set to ≤0.2 dB. COPYRIGHT: (C)2004,JPO

10. 发明专利

JP2003232955A OPTICAL FIBER TYPE POLARIZER 审中-公开
公开(公告)号：JP2003232955A
公开(公告)日：2003-08-22
申请号：JP2002031499
申请日：2002-02-07
申请人： FUJIKURA LTD
发明人： OTSUKA MASAAKI , TANAKA TAIICHIRO , NISHIDE KENJI
IPC分类号： G02B5/30 , G02B6/024 , G02B6/287 , G02B6/17
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber type polarizer that has excellent high- power durability, with which connection loss can be reduced, and that can be small-sized. SOLUTION: Two polarization maintaining optical fibers 1 having a different propagation constant relative to two orthogonal linear polarizing light beams are parallelized with the polarization axes positioned neatly side by side, and melt-stretched to form a melt-stretched part 2. When a nonpolarizing light beam is made incident from the port 1 of this optical fiber type polarizer, light leaks out from a core 3 in the tapered part of the melt-stretched part 2 where the outer diameter of each polarization maintaining optical fiber 1 is gradually made thin, causing mode coupling between the adjacent optical fibers. The two polarization maintaining optical fibers 1 both have double refractivity, enabling X and Y polarizations to have a difference in the degree of coupling and to be outputted by selecting the port 2 and port 3. COPYRIGHT: (C)2003,JPO

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