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21. 发明专利

JP2007333969A Optical fiber connection component 审中-公开
标题翻译：光纤连接组件
公开(公告)号：JP2007333969A
公开(公告)日：2007-12-27
申请号：JP2006164923
申请日：2006-06-14
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： KOYAMA MAKOTO , KURASHIMA TOSHIO , BANDO KOJI , SON HITOSHI
IPC分类号： G02B6/24
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber connection component that prevents loss of light due to mode coupling.
SOLUTION: The optical fiber connection component for connecting two or more optical fiber waveguides is provided with: a dispersion medium 6 installed in the connection part of the optical fiber and provided with a refractive index equal to or less than that of an optical fiber clad; and refractive index matching material particles 5 arranged in the dispersion medium 6.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供防止由于模式耦合引起的光的损失的光纤连接部件。解决方案：用于连接两个或多个光纤波导的光纤连接部件设置有：分散介质6，其安装在光纤的连接部分中并具有等于或小于光纤的折射率纤维包层和配置在分散介质6中的折射率匹配材料颗粒5.版权所有（C）2008，JPO＆INPIT

22. 发明专利

JP2006217787A Storage structure for marginal wiring length 有权
标题翻译：用于接线长度的存储结构
公开(公告)号：JP2006217787A
公开(公告)日：2006-08-17
申请号：JP2005302655
申请日：2005-10-18
申请人： Matsushita Electric Works Ltd , Nippon Telegr & Teleph Corp , 日本電信電話株式会社 , 松下電工株式会社
发明人： YOSHII OSAMU , BANDO KOJI , ARAKI EIJI , KURASHIMA TOSHIO
IPC分类号： H02G11/00 , G02B6/00 , H02G11/02
摘要： PROBLEM TO BE SOLVED: To obtain a storage structure for a marginal wiring length having a higher degree of freedom in layout by a compact constitution. SOLUTION: The storage structure for a marginal wiring length is provided with a bottom plate 7 which is arranged adjacent to the side edge of a base member 2, a bobbin 10 which is fitted to the bottom plate 7 and winds the surplus length of the wiring 6, and a marginal length cover 13 which has a side plate 15 having a communication port 18 for communicating with the cabling space 5 in a wiring protection cover 4 formed therein and covers the bobbin 10 like crossing over both the bottom plate 7 and the base member 2. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过紧凑的结构获得具有更高自由度的边缘布线长度的存储结构。
解决方案：边缘布线长度的存储结构设置有与基座构件2的侧缘相邻配置的底板7，与底板7嵌合的绕线管10，并将多余的长度布线6和边缘长度盖13，该边缘长度盖13具有侧板15，该侧板15具有连接端口18，用于与形成在其中的布线保护盖4中的布线空间5相通并且覆盖线轴10，从而跨越底板7 （C）2006，JPO＆NCIPI

23. 发明专利

JP2005345805A Optical fiber cord 有权
标题翻译：光纤线
公开(公告)号：JP2005345805A
公开(公告)日：2005-12-15
申请号：JP2004165920
申请日：2004-06-03
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： NAMEKAWA YOSHIKAZU , TACHIKURA MASAO , KUROSAWA YOSHINORI , TOMITA SHIGERU , KURASHIMA TOSHIO , ARAKI EIJI , HIRAMATSU KATSUMI
IPC分类号： G02B6/38 , G02B6/44
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber cord to which an ordinary optical connector is applicable and moreover, its attachment is easy. SOLUTION: The optical fiber cord has a tensile strength fiber layer 5 on the outer circumference of a coated optical fiber 4, having an internal layer covering layer 6 of an outside diameter not larger than 3.0 (mm) on the outer circumference of the tensile strength fiber layer 5, having an external layer covering layer 7 of an outside diameter not smaller than 3.0 (mm); and thereby, since the internal layer covering layer 6 suited to the ordinary optical connector 10 is exposed if the outer layer covering layer 7 is removed, the optical connector 10 can be attached easily thereto. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供可应用普通光学连接器的光纤线缆，并且其附接容易。解决方案：光纤线在涂覆光纤4的外圆周上具有拉伸强度的纤维层5，其外周的外径不大于3.0（mm）的内层覆盖层6 具有外径不小于3.0（mm）的外层覆盖层7的拉伸强度纤维层5; 因此，如果除去外层覆盖层7，则由于适合于普通光连接器10的内层覆盖层6露出，所以可以容易地安装光连接器10。版权所有（C）2006，JPO＆NCIPI

24. 发明专利

JP2005176039A Optical transmission system 审中-公开
标题翻译：光传输系统
公开(公告)号：JP2005176039A
公开(公告)日：2005-06-30
申请号：JP2003414741
申请日：2003-12-12
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： SHIMIZU TOMOYA , IEDA KOJI , KURASHIMA TOSHIO , TOMITA SHIGERU
IPC分类号： H04J14/00 , H04J14/02
摘要： PROBLEM TO BE SOLVED: To provide an optical transmission system having economical efficiency and suitable for multiplex services in a user system. SOLUTION: Transmission systems 101 to 104 generate signal light with a single mode in wavelength of 1.2 μm or small. Each of systems 101 to 104 generates optical light in different bands to carry out information transmission by using the generated optical signal. In an optical multiplexer 300, optical fibers 201 to 204 are stored optically, and each optical signal transmitted through these fibers is multiplexed by wavelength division multiplex technology and transmitted to an optical demultiplexer 500 through an optical fiber 400. In the optical demultiplexer 500, the multiplexed optical signal transmitted from optical multiplexer 300 through the optical fiber 400 is separated in frequencies for each wavelength band and fed as an output to each optical receiving device 701 to 704, which has a corresponding band. In the optical receiving devices 701 to 704, each optical signal entered through the optical fiber 601 to 604 is converted to an electrical signal. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种具有经济效率并且适用于用户系统中的多路复用业务的光传输系统。解决方案：传输系统101到104以1.2μm或小的波长的单模生成信号光。系统101至104中的每一个产生不同频带的光，以通过使用所生成的光信号来进行信息传输。在光复用器300中，光纤201至204被光学存储，并且通过这些光纤传输的每个光信号通过波分复用技术被复用，并通过光纤400发送到光解复用器500.在光解复用器500中，从光复用器300通过光纤400发送的复用光信号在每个波长带的频率上分离，并作为输出馈送到具有相应频带的每个光接收装置701至704。在光接收装置701至704中，通过光纤601至604输入的每个光信号被转换为电信号。版权所有（C）2005，JPO＆NCIPI

25. 发明专利

JP2005114904A Connecting part of optical fibers, and optical fiber splicer 有权
标题翻译：光纤连接部分和光纤分离器
公开(公告)号：JP2005114904A
公开(公告)日：2005-04-28
申请号：JP2003346905
申请日：2003-10-06
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： OSONO KAZUMASA , KUROSAWA YOSHINORI , TACHIKURA MASAO , KURASHIMA TOSHIO , ARAKI EIJI , HIRAMATSU KATSUMI
IPC分类号： G02B6/36 , G02B6/02
CPC分类号： G02B6/02314
摘要： PROBLEM TO BE SOLVED: To provide a connecting part of optical fibers of which the connection loss and reflection amount are small, and a change in temperature characteristics thereof is small, and to provide an optical fiber splicer. SOLUTION: In the connecting part 1 of an optical fiber where an optical fiber 61 having a plurality of air holes 64 in the clad 63 around the core 62 is connected to the other optical fiber 71, the optical fiber 61 is connected to the other optical fiber 71 via a refractive index matching body R having a refractive index of the clad 63 or lower in the practical use temperature range and containing microbodies of 100 nm or smaller in an average diameter or an average length. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供连接损耗和反射量小的光纤的连接部分和其温度特性的变化小，并且提供光纤接合器。解决方案：在光纤的连接部分1中，其中在芯62周围的包层63中具有多个气孔64的光纤61连接到另一光纤71，光纤61连接到另一个光纤71经由折射率匹配体R，折射率匹配体R在实际使用温度范围内具有包层63的折射率或更低，并且平均直径或平均长度包含100nm或更小的微体。版权所有（C）2005，JPO＆NCIPI

26. 发明专利

JP2005024851A Optical fiber curl cord 有权
标题翻译：光纤曲线
公开(公告)号：JP2005024851A
公开(公告)日：2005-01-27
申请号：JP2003189729
申请日：2003-07-01
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： OSONO KAZUMASA , TACHIKURA MASAO , KUROSAWA YOSHINORI , NAMEKAWA YOSHIKAZU , KAWASE KENJI , KURASHIMA TOSHIO , ARAKI EIJI , HIRAMATSU KATSUMI
IPC分类号： G02B6/02 , G02B6/032 , G02B6/44 , G02B6/20
CPC分类号： G02B6/4458 , G02B6/02314
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber curl cord that gives no damage to an optical connector and the curl cord when the curl cord having an elongation limiting mechanism is pulled. SOLUTION: In the optical fiber curl cord 1 with a curl structure having retractibility in the longitudinal direction by spirally bending an optical fiber cord 2, there is provided an elongation/contraction controlling member 21 that limits the elongation longitudinally. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供当拉伸具有伸长限制机构的卷曲线时，不会损坏光学连接器和卷曲的光纤卷曲。解决方案：在具有通过螺旋弯曲光纤线2的沿纵向具有伸缩性的卷曲结构的光纤卷曲1中，提供了纵向限制伸长率的伸长/收缩控制部件21。版权所有（C）2005，JPO＆NCIPI

27. 发明专利

JP2012052996A Hole structure testing device and method thereof 有权
标题翻译：孔结构测试装置及其方法
公开(公告)号：JP2012052996A
公开(公告)日：2012-03-15
申请号：JP2010197609
申请日：2010-09-03
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： MATSUI TAKASHI , IZUMIDA HISASHI , NAKAJIMA KAZUHIDE , KURASHIMA TOSHIO
IPC分类号： G01M11/00 , G01M11/02
摘要： PROBLEM TO BE SOLVED: To detect fluctuation in a longitudinal direction of a hole structure in a hole structure optical fiber without destroying the optical fiber.SOLUTION: A light wave from a light source 11 is modulated into an optical pulse having optional pulse width and transmission period by a modulator 13, and the optical pulse is made incident to one end of an optical fiber 1 to be measured via a directional coupler 14. At the time, back-scattered light generated in the optical fiber 1 to be measured and returned to the one end side is passed through a polarizer 21 to take out scattered light components by GAWBS (Guided acoustic-wave Brillouin scattering), and the scattered light components are converted into electric signals by a light receiving device 22. Subsequently, the obtained electric signals and electric signals of a prescribed frequency from an oscillator 23 are mixed in a mixer 24. Further, square average processing is performed on time waveforms of the electric signals after the mixing by an averaging processing part 25 to acquire scattered light intensity at an optional position in the longitudinal direction of the optical fiber 1 to be measured. The fluctuation in the hole structure is detected from a frequency characteristic in relation to the light intensity.
摘要翻译：要解决的问题：检测孔结构光纤中的孔结构的纵向方向上的波动而不破坏光纤。解决方案：将来自光源11的光波调制成具有由调制器13选择的脉冲宽度和透射周期的光脉冲，并且使光脉冲入射到要测量的光纤1的一端，经过定向耦合器14.此时，在待测量的光纤1中产生的返回到一端的反向散射光通过偏振器21，通过GAWBS（引导声波布里渊散射）引出散射光分量），并且通过光接收装置22将散射光分量转换成电信号。随后，将获得的来自振荡器23的电信号和规定频率的电信号混合在混合器24中。此外，进行平方处理通过平均处理部25进行混合后的电信号的导通时间波形，以获得在光学的纵向方向上的可选位置处的散射光强度 l要测量的纤维1。从与光强相关的频率特性中检测孔结构的波动。版权所有（C）2012，JPO＆INPIT

28. 发明专利

JP2011020861A Method for producing optical fiber preform 有权
标题翻译：生产光纤预制件的方法
公开(公告)号：JP2011020861A
公开(公告)日：2011-02-03
申请号：JP2009164427
申请日：2009-07-13
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： FUKAI CHISATO , NAKAJIMA KAZUHIDE , TSUJIKAWA KYOZO , SHIMIZU TOMOYA , KURASHIMA TOSHIO
IPC分类号： C03B37/018 , G02B6/00
CPC分类号： C03B37/01493 , C03B2203/14
摘要： PROBLEM TO BE SOLVED: To provide a method for producing optical fiber preform easily obtaining an optical fiber preform which can manufacture optical fibers including a hollow part with a low loss and a long size. SOLUTION: The method for producing the optical fiber preform which includes the hollow part continuously present along the axial direction includes: a step of preliminarily arranging a plurality of quartz pipes 32 around a columnar seed rod 31; a step of depositing first glass fine particles 33a to be the core part of the optical fiber preform around the seed rod 31; and a step of depositing second glass fine particles 34a to be the clad part of the optical fiber preform around a quartz pipe 32 to form the optical fiber preform. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：解决的问题：提供一种容易获得光纤预制棒的方法，该光纤预制棒可以制造包括具有低损耗和长尺寸的中空部分的光纤。解决方案：包括沿轴向连续存在的中空部分的光纤预制棒的制造方法包括：预先在圆棒状棒31周围设置多个石英管32的步骤; 将作为光纤预制棒的核心部分的第一玻璃微粒33a沉积在籽晶棒31周围的步骤; 以及将作为光纤预制件的包层部分的第二玻璃微粒34a围绕石英管32沉积以形成光纤预制件的步骤。版权所有（C）2011，JPO＆INPIT

29. 发明专利

JP2010014644A Identification method and device of optical fiber type 审中-公开
标题翻译：光纤类型的识别方法和装置
公开(公告)号：JP2010014644A
公开(公告)日：2010-01-21
申请号：JP2008176669
申请日：2008-07-07
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： MATSUI TAKASHI , KURASHIMA TOSHIO
IPC分类号： G01M11/00
摘要： PROBLEM TO BE SOLVED: To provide an identifying device of an optical fiber type for identifying the optical fiber type used in a system in service, without interrupting the service. SOLUTION: This identifying device comprises: a grating-forming apparatus 130 for forming long-period grating in an optical fiber 101; a light-receiving unit 140 for receiving leak light λ 1 ' generated by the grating formation apparatus; and a database and fiber type determination apparatus 150 for collating the wavelength of the leaking light received by the light-receiving unit with the wavelength of the leak light of various optical fibers that is previously measured and stored, and identifying the optical fiber type. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供用于识别在使用中的系统中使用的光纤类型的光纤类型的识别装置，而不中断服务。解决方案：该识别装置包括：用于在光纤101中形成长周期光栅的光栅形成装置130; 光接收单元140，用于接收由光栅形成装置产生的泄漏光λ 1 以及数据库和光纤类型确定装置150，用于将由光接收单元接收的泄漏光的波长与预先测量和存储的各种光纤的泄漏光的波长进行比较，并且识别光纤类型。版权所有（C）2010，JPO＆INPIT

30. 发明专利

JP2009294111A Water immersion detection device and method 审中-公开
标题翻译：水浸渍检测装置及方法
公开(公告)号：JP2009294111A
公开(公告)日：2009-12-17
申请号：JP2008148574
申请日：2008-06-05
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： MATSUI TAKASHI , WATANABE TSUNEICHI , KURASHIMA TOSHIO
IPC分类号： G01M11/00 , G02B6/00 , G02B6/02 , G02B6/032 , G02B6/036
摘要： PROBLEM TO BE SOLVED: To provide a water immersion detection device and a method in which loss wavelength dependency is reduced. SOLUTION: The water immersion detection device includes an optical fiber on which test light is incident for detecting water immersion, a water absorption medium disposed near the optical fiber, and a bend forming part forming the bend of the optical fiber when the water absorption medium is expanded by the absorption of water. The optical fiber 300 includes a W-type profile in which a ring-type low refractive index layer 303 having a refractive index lower than that of a clad 302 is adjacent to a core 301 in the clad 302, in addition to the core 301 and the clad 302. Because a light wave propagated in the optical fiber is spread as it approaches the long-wavelength side, the effect of the low refractive index layer 303 is increased in the optical fiber 300 so that confinement is intensified as it approaches the long-wavelength side. Thus, the difference in the bending loss between different wavelengths is reduced more than that of a step index type SMF. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种水浸检测装置和其中损耗波长相关性降低的方法。解决方案：水浸检测装置包括其上入射有检测水的光纤，用于检测水浸的光纤，设置在光纤附近的吸水介质，以及形成光纤弯曲部的弯曲形成部，当水吸收介质通过吸收水而膨胀。光纤300包括W型轮廓，除了芯301之外，其中折射率低于包层302的环型低折射率层303与包层302中的芯301相邻，由于在光纤中传播的光波接近长波长侧，所以在光纤300中增加了低折射率层303的作用，使得约束在接近长波长时被强化波长侧。因此，不同波长之间的弯曲损耗的差异大于阶跃式SMF的弯曲损耗的差异。版权所有（C）2010，JPO＆INPIT

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