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    • 2. 发明专利
    • Connecting method of optical fiber and refractive index matching agent used for the same
    • 光纤连接方法及其相应的折射率匹配剂
    • JP2011154294A
    • 2011-08-11
    • JP2010016961
    • 2010-01-28
    • Nippon Telegr & Teleph Corp 日本電信電話株式会社
    • SAITO KOTARONAKAJIMA KAZUHIDE
    • G02B6/24G02B6/00G02B6/032
    • PROBLEM TO BE SOLVED: To achieve a mechanical splice connection having a favorable connection loss characteristics and a reflection attenuation characteristics for a hole structure fiber having an arbitrary cross-sectional structure. SOLUTION: In connecting a hole structure fiber having a plurality of holes 3 around a core 1 by means of mechanical splice by using a refractive index matching agent, the maximum penetration length Zmax of a refractive index matching agent 4 into holes 3 is controlled as a function of RΔ(=Δh/Δ), which is the ratio between a specific refractive index difference Δh of a refractive index of the refractive index matching agent 4 against the refractive index of pure quartz glass, and the ratio of a specific refractive index difference Δ of a refractive index of the core 1 against the refractive index of the pure quartz glass. Thereby, the increase of a mode coupling loss caused by penetration of the refractive index matching agent 4 into the holes 3 is suppressed. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:为了实现具有任意横截面结构的孔结构纤维具有良好的连接损耗特性和反射衰减特性的机械接头连接。 解决方案:通过使用折射率匹配剂通过机械接合将具有多个孔3的孔结构纤维连接在芯1周围,折射率匹配剂4到孔3中的最大穿透长度Zmax为 作为折射率匹配剂4的折射率的比折射率差Δh与纯石英玻璃的折射率之比的RΔ(=Δh/Δ)的函数,以及特定的 芯1的折射率与纯石英玻璃的折射率的折射率差Δ。 因此,抑制了由折射率匹配剂4穿入孔3而导致的模式耦合损耗的增加。 版权所有(C)2011,JPO&INPIT
    • 3. 发明专利
    • Optical fiber guide
    • 光纤指南
    • JP2010096983A
    • 2010-04-30
    • JP2008267564
    • 2008-10-16
    • Nippon Telegr & Teleph Corp 日本電信電話株式会社
    • KOYAMA MAKOTOTOMITA SHIGERUSHIMIZU MASATOSHISAITO KOTARO
    • G02B6/00
    • PROBLEM TO BE SOLVED: To simplify optical fiber connection work by achieving covering removal work needing no special tool removing the covering of an optical fiber and no work using the special tool. SOLUTION: An optical fiber guide stores one end to be connected with a coated optical fiber 40 in a V groove from the other end side of a coated optical fiber guide part 10 by using the optical fiber guide provided with a covering removal part 20 provided with holes having the substantially same inner diameter as or slightly larger inside diameter than the outer diameter of a part for removing the covering of the coated optical fiber 40 on one end side of the body 11 of the coated optical fiber guide part 10 provided with the V groove movably storing a covering-attached part of the coated optical fiber 40 in an axial direction. The optical fiber guide removes the covering with the covering removal part 20 only by being inserted in one end side, and the edge part becomes a bared primary coated optical fiber 41. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了简化光纤连接工作,通过实现无需特殊工具的覆盖去除工作,可以消除光纤的覆盖,并且不使用专用工具进行工作。 解决方案:光纤引导件通过使用具有覆盖物去除部分的光纤引导器,将与涂覆光纤40连接的一端从涂覆光纤引导部分10的另一端侧存储在V沟槽中 20设置有具有与用于去除涂覆光纤40的被覆光纤40的覆盖物的部分的内径大致相同的内径或略大于外径的孔,所述被覆光纤40在涂覆光纤引导部10的主体11的一端侧设置, 其中V形槽沿轴向方向可移动地存储涂覆的光纤40的覆盖部分。 光纤引导件仅通过插入一端侧而移除覆盖物去除部分20,并且边缘部分变成裸露的初级涂覆光纤41.版权所有(C)2010,JPO&INPIT
    • 4. 发明专利
    • Traction terminal and traction method
    • 跟踪终端和跟踪方法
    • JP2009122530A
    • 2009-06-04
    • JP2007298336
    • 2007-11-16
    • Nippon Telegr & Teleph Corp 日本電信電話株式会社
    • UENISHI YUSUKENAKAMIZO KYOICHIABE YOSHITERUSAITO KOTARO
    • G02B6/46
    • PROBLEM TO BE SOLVED: To provide a traction terminal and a traction method that prevent damage due to an excessive stress load on an optical connector, that can easily and suitably pull an optical connector-attached optical fiber cable or optical fiber cord, and that can improve workability of a traction operation. SOLUTION: The traction terminal is characterized in that it is equipped with: a traction terminal body 12 that covers an optical connector 19 mounted on an optical fiber cable 18 and a part of the optical fiber cable 18; a stop ring 17 that binds the traction terminal body 12 to the optical fiber cable 18; and a traction hook 16 that is installed in the traction terminal body 12 and that is attached with a traction cable 34. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:为了提供一种牵引端子和牵引方法,其能够容易且适当地拉动连接有光连接器的光纤线缆或光纤线缆,防止由于光连接器上的过大的应力负荷引起的损坏, 并且可以提高牵引操作的可操作性。 牵引终端的特征在于它具有:牵引端子主体12,其覆盖安装在光纤电缆18上的光连接器19和光缆18的一部分; 将牵引端子主体12与光缆18结合的止动环17; 以及牵引钩16,其安装在牵引终端主体12中并且附接有牵引电缆34.版权所有(C)2009,JPO&INPIT
    • 6. 发明专利
    • Method for connecting optical fiber
    • 连接光纤的方法
    • JP2013109273A
    • 2013-06-06
    • JP2011256023
    • 2011-11-24
    • Nippon Telegr & Teleph Corp 日本電信電話株式会社
    • SAITO KOTARONAKAJIMA KAZUHIDE
    • G02B6/38
    • PROBLEM TO BE SOLVED: To provide a butt connection method of an optical fiber using refractive index matching agent for preventing connection characteristics from being deteriorated by adhering the refractive index matching agent to the end face of the optical fiber even in a high temperature.SOLUTION: Vacancy structure optical fibers 10A and 10B to be connected are butted to each other in a state where jelly-like refractive index matching agent 20 which deforms in accordance with the pressurization of the optical fibers 10A and 10B is interposed between the end faces of the optical fibers 10A and 10B, and held and fixed in a state where the refractive index matching agent 20 which has deformed in accordance with the pressurization of one ends of the optical fibers 10A and 10B enters the inside of a vacancy 13 of the vacancy structure optical fibers 10A and 10B across length which is 20 μm or more and 150 μm or less. Thus, the refractive index matching agent 20 can be adhered to the end faces of the optical fibers 10A and 10B even in a high temperature, and connection characteristics can be prevented from being deteriorated.
    • 解决的问题:为了提供使用折射率匹配剂的光纤的对接连接方法,即使在高温下也通过将折射率匹配剂粘附到光纤的端面来防止连接特性劣化 。 解决方案:要连接的空位结构光纤10A和10B在这样的状态下彼此对接,其中根据光纤10A和10B的加压而变形的胶状折射率匹配剂20介于 光纤10A和10B的端面,并且在根据光纤10A和10B的一端的加压变形的折射率匹配剂20进入到空隙13的内部的状态下保持和固定的状态 空隙结构光纤10A和10B的长度为20μm以上且150μm以下。 因此,即使在高温下也可以将折射率匹配剂20粘附到光纤10A和10B的端面,并且可以防止连接特性劣化。 版权所有(C)2013,JPO&INPIT
    • 7. 发明专利
    • Optical connector and connection method for optical fiber
    • 光纤连接器和光纤连接方法
    • JP2014066875A
    • 2014-04-17
    • JP2012212217
    • 2012-09-26
    • Nippon Telegr & Teleph Corp 日本電信電話株式会社
    • SAITO KOTARONAKAJIMA KAZUHIDE
    • G02B6/38
    • PROBLEM TO BE SOLVED: To connect, at a low loss, optical fibers the cores of which are arranged at positions other than the center of gravity of clad.SOLUTION: An elastic sleeve 12 is connected to a ferrule 11 via a coupling part 15 so as to be parallel with the ferrule 11, the ferrule 11 incorporating the connected optical fibers F of a plug 10 such that their center axes coincide with each other. A ferrule 22 fittable in the elastic sleeve 13 of the plug 10 is connected to an elastic sleeve 21, in which the ferrule 11 of the plug 10 of an adapter 20 is fittable, via a coupling part 24 so as to be parallel to the elastic sleeve 21. The ferrule 11 on the plug 10 side is fitted into the elastic sleeve 21 on the adapter 20 side. Also, the ferrule 22 is fitted into the elastic sleeve 12, thereby making it possible to restrict the axial rotation of the plug 10 around the axis of the ferrule 11.
    • 要解决的问题:以低损耗的方式连接其芯线布置在除了包层重心以外的位置处的光纤。解决方案:弹性套筒12通过联接部件15连接到套圈11,从而 为了与套圈11平行,套圈11并入插塞10的连接的光纤F,使得它们的中心轴彼此一致。 可插入插头10的弹性套筒13中的套圈22连接到弹性套筒21,弹性套筒21通过联接部件24可配合适配器20的插头10的套圈11,以平行于弹性 套筒21上的插头10上的套圈11装配到适配器20侧的弹性套筒21中。 此外,套圈22装配到弹性套筒12中,从而可以限制插头10围绕套圈11的轴线的轴向旋转。
    • 8. 发明专利
    • Hole-assisted optical fiber
    • 孔辅助光纤
    • JP2012150404A
    • 2012-08-09
    • JP2011010847
    • 2011-01-21
    • Nippon Telegr & Teleph Corp 日本電信電話株式会社
    • SAITO KOTARONAKAJIMA KAZUHIDE
    • G02B6/00G02B6/032
    • PROBLEM TO BE SOLVED: To provide a hole-assisted optical fiber capable of suppressing a loss generated by the presence/absence of a hole structure in an optical fiber propagation direction.SOLUTION: The hole-assisted optical fiber includes: a core 1 with a radius (a); and holes 3 that are located on a clad 2 in the periphery of the core and tangent to a circumference having a distance R from the center of the core 1. In the hole-assisted optical fiber, an MFD mismatch loss in the optical fiber propagation direction caused by the presence/absence of the holes 3 can be reduced by appropriately controlling a relationship among a relative change amount RvMFD of MFD, a standardized frequency V of the core 1, the distance R, and the radius (a).
    • 要解决的问题:提供一种能够抑制由光纤传播方向上存在/不存在空穴结构而产生的损失的空穴辅助光纤。 解决方案:空穴辅助光纤包括:具有半径(a)的芯1; 以及位于芯体周围的包层2上并与芯1的中心距离R的圆周相切的孔3.在空穴辅助光纤中,光纤传播中的MFD失配损耗 可以通过适当地控制MFD的相对变化量RvMFD,芯部1的标准化频率V,距离R和半径(a)之间的关系来减小由孔3的存在/不存在引起的方向。 版权所有(C)2012,JPO&INPIT
    • 9. 发明专利
    • Part and method for connecting optical fiber
    • 用于连接光纤的部件和方法
    • JP2010113048A
    • 2010-05-20
    • JP2008283955
    • 2008-11-05
    • Nippon Telegr & Teleph Corp 日本電信電話株式会社
    • SAITO KOTAROSHIMIZU MASATOSHITAKATANI MASAAKIKOYAMA MAKOTO
    • G02B6/255G02B6/38
    • PROBLEM TO BE SOLVED: To provide a simple optical fiber connecting part and a connecting method, for making PC (physical contact) connection with sealing performance. SOLUTION: The forward end faces 21, 31 of optical fibers 20, 30 are abutted on each other in an optical fiber aligning part 11 only by stress caused by bending the optical fibers 20, 30 formed in optical fiber bending parts 14, 15, thereby making physical contact connection. Further, the optical fibers 20, 30 are fixed using an adhesive agent 40 in optical fiber bonding parts 12, 13, and the inside of the optical fiber aligning part 11 is sealed. The optical fiber connecting part 10 is thus structured so that the optical fibers are simply fixed without needing any large force for physical contact to enable connection with long-term reliability. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了提供简单的光纤连接部分和连接方法,用于制造具有密封性能的PC(物理接触)连接。 解决方案:光纤20,30的前端面21,31仅通过弯曲形成在光纤弯曲部14中的光纤20,30产生的应力而在光纤对准部11中彼此抵接, 15,从而进行物理接触连接。 此外,光纤20,30使用粘合剂40固定在光纤接合部12,13中,并且光纤对准部11的内部被密封。 因此,光纤连接部10被构造成使得光纤被简单地固定,而不需要任何大的物理接触力,以实现长期可靠性的连接。 版权所有(C)2010,JPO&INPIT