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1. 发明专利

JP2004061540A Wiring method for optical fiber cable and cover for branching optical fiber cable 审中-公开
公开(公告)号：JP2004061540A
公开(公告)日：2004-02-26
申请号：JP2002215607
申请日：2002-07-24
申请人： Nippon Telegr & Teleph Corp , Nippon Telegraph & Telephone East Corp , 日本電信電話株式会社 , 東日本電信電話株式会社
发明人： TAKANO SADAAKI , ARAKAWA KOJI , YAMAMOTO FUMIHIKO , IWADATE YOSHIO , NAKAZAWA KENICHI
IPC分类号： G02B6/00
摘要： PROBLEM TO BE SOLVED: To realize the branch connection of an optical fiber cable even in a branch connection box having no space in which a cable slot rod is housed without giving damage or optical influence causing communication trouble to a coated optical fiber. SOLUTION: The cover for branching the optical fiber cable 1 is constituted of a cover lower part 2B and a cover upper part attached to the lower part 2B so as to cover it over, and the lower part 2B or the cover upper part has a cable cover part 7A covering over the coating removed part of the optical fiber cable 3, a guide part 7B guiding the coated optical fiber branched from the cable 3 to the branch connection box 4 side, a pair of cable grasping parts 6 fixing the coating removed edge of the cable at both ends of the coating removed part of the cable without cutting the cable slot rod in order to secure the excess length of the coated optical fiber required for branch connection, and a branching cover fixing part 9 fixed in the branch connection box. COPYRIGHT: (C)2004,JPO

2. 发明专利

JP2009192691A Live wire decision apparatus and method 有权
标题翻译：实际电线决策设备和方法
公开(公告)号：JP2009192691A
公开(公告)日：2009-08-27
申请号：JP2008031664
申请日：2008-02-13
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： YAMAMOTO FUMIHIKO
IPC分类号： G02B6/00 , G01M11/00
摘要： PROBLEM TO BE SOLVED: To provide a live wire decision apparatus and method that determines if a circuit is in use or nonuse at a job site in a plurality of optical fibers for wiring stored in the same optical splitter. SOLUTION: The live wire decision apparatus 21 includes: a pair of bodies holding the optical fibers in-between in a crimped state and comprising a first body 11 in which a recess 11a is formed for the purpose of housing and crimping optical fibers and a second body 12 in which a protrusion 12a is formed in the shape complementary to the recess 11a; a photodetector 14 for receiving radiated light from the optical fibers in the center of the protrusion 12a; and a decision means 22, 23 which, from a receiving signal corresponding to the radiated light output from the photodetector 14, detects a characteristic difference due to the propagation direction of the signal in the optical fibers and which determines the optical fibers as an active circuit or non-active circuit. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种确定电路是否在多个用于存储在同一光分路器中的布线的光纤中的工作现场使用中或不使用的实时电线决定装置和方法。电线决定装置21包括：一对主体，保持处于卷曲状态的光纤，并且包括第一主体11，其中形成有用于容纳和压接光纤的凹部11a 以及第二主体12，其中突起12a形成为与凹部11a互补的形状; 用于从突起12a的中心处的光纤接收辐射光的光电检测器14; 以及从与光电检测器14输出的辐射光对应的接收信号中检测出由于光纤中的信号的传播方向引起的特性差异并将光纤确定为有源电路的判定装置22,23 或非有源电路。版权所有（C）2009，JPO＆INPIT

3. 发明专利

JP2014186209A Fiber fuse stopper, optical connector and optical transmission system 有权
标题翻译：光纤保险丝停止器，光学连接器和光传输系统
公开(公告)号：JP2014186209A
公开(公告)日：2014-10-02
申请号：JP2013061712
申请日：2013-03-25
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： KUROKAWA KENJI , HANZAWA NOBUTOMO , YAMAMOTO FUMIHIKO
IPC分类号： G02B6/032 , G02B6/02 , G02B6/38
摘要： PROBLEM TO BE SOLVED: To provide a fiber fuse stopper that can prevent influence of multimode of a hole assisted fiber (HAF) while maintaining high effectiveness of stopping transmission of a fiber fuse, and provide an optical connector and an optical transmission system.SOLUTION: In a fiber fuse stopper, a part of an optical transmission path is a hole assisted fiber (HAF) having a length in an optical transmission direction of 0.1 mm or more and 0.5 mm or less. An optical connector and an optical transmission system include the fiber fuse stopper.
摘要翻译：要解决的问题：提供一种可以防止空穴辅助光纤（HAF）的多模式的影响，同时保持阻止光纤保险丝传输的高效率的光纤熔丝塞，并提供光连接器和光传输系统。解决方案：在光纤保险丝止动器中，光传输路径的一部分是光传输方向的长度为0.1mm以上且0.5mm以下的空穴辅助光纤（HAF）。光连接器和光传输系统包括光纤保险丝塞。

4. 发明专利

JP2015022086A マルチコア光ファイバ有权
标题翻译：多芯光纤
公开(公告)号：JP2015022086A
公开(公告)日：2015-02-02
申请号：JP2013149048
申请日：2013-07-18
申请人：日本電信電話株式会社 , Nippon Telegr & Teleph Corp
发明人： SAKAMOTO YASUSHI , MORI TAKAYOSHI , YAMAMOTO TAKASHI , WADA MASAKI , NAKAJIMA KAZUHIDE , YAMAMOTO FUMIHIKO
IPC分类号： G02B6/04 , G02B6/02
摘要：【課題】本発明は、2個以上のコアが配置された光ファイバにおいて、群遅延差の低減と空間利用効率の両立を図ることを目的とする。【解決手段】本発明は、2個以上のコアが配置された光ファイバであって、光ファイバ中を伝搬するモード間の群遅延差が?450ps/km以下、かつコア間のクロストークが−25dB以上となる様にコア間隔距離Dとモードフィールド半径Wの比D/Wを制御する。【選択図】図1
摘要翻译：要解决的问题：兼容地实现了具有两个或更多个核心的光纤中的组延迟差和空间利用效率的降低。解决方案：本发明是一种配置有两个或更多个核的光纤，其中，控制芯间隔距离D与模场半径W的D / W，使得在光纤中传播的模场之间的组延迟差成为等于或不高于±450ps / km，并且在核变得等于或不小于25db。

5. 发明专利

JP2006133176A Core wire contrast system and the core wire contrast method 审中-公开
标题翻译：核心线对比系统和核心线对比方法
公开(公告)号：JP2006133176A
公开(公告)日：2006-05-25
申请号：JP2004325218
申请日：2004-11-09
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： YAMAMOTO SHIROSHI , YAMAMOTO FUMIHIKO
IPC分类号： G01M11/00
摘要： PROBLEM TO BE SOLVED: To prevent wrong determination and redoing of core wire contrast due to natural causes.
SOLUTION: A core wire contrast system 1 is provided near the other end in a center line 200, regarded as a center line 200 on which a contrast light 2000 is made incident, and is provided with a bending imparting part 12 for imparting bending to a bending part 200a that is a part of the center line 200 so that the double refractive index of the center line 200 repeats change on steady basis.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：防止由于自然原因导致的芯线对比错误的确定和重做。解决方案：芯线对比系统1设置在中心线200的另一端附近，被视为入射对比光2000的中心线200，并且设置有弯曲施加部分12，用于施加弯曲到作为中心线200的一部分的弯曲部200a，使得中心线200的双折射率基于稳定重复变化。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2005215513A Method for switching and connecting optical fiber, conveying tool, and coating removing machine 有权
标题翻译：用于切换和连接光纤，输送工具和涂层去除机器的方法
公开(公告)号：JP2005215513A
公开(公告)日：2005-08-11
申请号：JP2004024316
申请日：2004-01-30
申请人： Furukawa Electric Co Ltd:The , Nippon Telegr & Teleph Corp , 古河電気工業株式会社 , 日本電信電話株式会社
发明人： AKIYAMA TOMOHIRO , TAMAKI HIROYUKI , AOYANAGI YUJI , YAMAMOTO FUMIHIKO
IPC分类号： G02B6/255 , G02B6/00
摘要： PROBLEM TO BE SOLVED: To make a switching and connection without exerting large influence on continuous communication, by making the communication stop time shorter. SOLUTION: A method for switching and connecting an optical fiber includes a preprocessing stage of arranging an end of a switching-destination optical fiber L2 to one connection-side end of a fusion splicing connecting machine 10; a coating removing stage of fixing and holding a switching and connection part of a switching-source optical fiber L1 by a conveying tool 30, removing the coating of the switching and connection part by using the coating removing machine 20, and cleaning the connection part; a cutting stage for holding a state, wherein the switching and connection part having at least the coating removed is fixed and held and cutting the switching and connection part, by using a cutting machine 40 at a specified position; and a connection stage of arranging one end, which is cut at the cutting stage and is connected to the switching destination optical fiber L1 at the other connection-side end of the fusion splicing connecting machine 10 and connecting the switching-destination optical fiber L2 and switching-source optical fiber L1 by the fusion splicing connecting machine 10. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：通过使通信停止时间更短，进行切换和连接，而不会对连续通信产生很大的影响。解决方案：一种用于切换和连接光纤的方法包括将切换目的地光纤L2的端部布置到熔接连接机10的一个连接侧端的预处理阶段; 通过输送工具30固定和保持开关源光纤L1的开关部分的涂层去除阶段，通过使用涂层去除机20去除切换和连接部分的涂层，并清洁连接部分; 用于保持状态的切割阶段，其中至少具有去除的涂层的切换和连接部分被固定并保持并且通过在特定位置使用切割机40来切割切换和连接部分; 以及连接台，其在切割阶段切割并连接到熔接连接机10的另一个连接侧端的切换目的地光纤L1，并将切换目的地光纤L2和通过熔接连接机10的开关光纤L1。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JP2004093413A Method and system for optical fiber pair identification, light source device and light receiving device used for optical fiber pair identification system 有权
公开(公告)号：JP2004093413A
公开(公告)日：2004-03-25
申请号：JP2002255998
申请日：2002-08-30
申请人： Nippon Telegraph & Telephone East Corp , 東日本電信電話株式会社
发明人： HONDA HIROYASU , YAMAMOTO FUMIHIKO , ARAKAWA KOJI
IPC分类号： G01M11/00 , G02B6/00
摘要： PROBLEM TO BE SOLVED: To correctly carry out the optical fiber pair identification even if wavelengths of communication light and that of identifying light are near-by, wherein the wavelength of communication light quickly becomes longer corresponding to recent high-speeding up and widening a bandwidth of the communication light. SOLUTION: A light source device 10 is provided with a luminous control part 13 controlling a lighting action of the light source for a light signal 12, wherein the light control part controls a period of on/off of the identifying light having a further longer period than the on/off period of the communication light. A light receiving device 20 is provided with a sample detection circuit, the sampling period of which is further longer than that of communication light but shorter than that of identifying light. Therefore, this method enables the discrimination between the communication light and the identifying light based on a difference of on/off periods not depending on the difference of both the wavelengths, therefore the optical fiber pir identification can be correctly carried out even though the wavelengths of the communication light and that of identifying light are near-by. COPYRIGHT: (C)2004,JPO

8. 发明专利

JP2003065894A Optical fiber pair identification method and device 有权
标题翻译：光纤对配对方法及装置
公开(公告)号：JP2003065894A
公开(公告)日：2003-03-05
申请号：JP2001257899
申请日：2001-08-28
申请人： Nippon Telegraph & Telephone East Corp , 東日本電信電話株式会社
发明人： WATANABE SATOSHI , YAMAMOTO FUMIHIKO , ARAKAWA KOJI
IPC分类号： G01M11/00 , H04B10/07 , H04B10/25 , H04B10/2507 , H04B10/02 , H04B10/18
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber pair identifier capable of improving the restriction of the application distance of an optical communication system at low cost compared with hitherto, by dispensing with installation of a pair identification light interruption type optical filter on the subscriber terminal side.
SOLUTION: This pair identifier provided between a station device 1 and the subscriber terminal 7, for performing pair identification of an optical fiber 3 is equipped with a pair identifier light source part 17 for generating pair identification light having a modulated frequency outside a band of a modulated frequency of a communication signal between the station device 1 and the subscriber terminal 7 and inside a frequency band interrupted by a band-pass filter 5 included in the subscriber terminal 1, and a pair identifier bending part 21 for receiving pair identification light transmitted through the optical fiber 3.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：为了提供一种光纤对标识符，通过在用户终端上分配安装一对识别光中断型光学滤波器，能够以较低的成本改善光通信系统的应用距离的限制侧。解决方案：设置在站设备1和用户终端7之间的用于执行光纤3的对识别的对标识符配备有对标识符光源部17，用于生成具有在站设备1和用户终端7之间的通信信号的调制频率以及由包括在用户终端1中的带通滤波器5中断的频带内的频带;以及对标识符弯曲部21，用于接收通过光纤3。

9. 发明专利

JP2004093407A Apparatus and method for identifying coated optical fiber 审中-公开
标题翻译：用于识别涂覆的光纤的装置和方法
公开(公告)号：JP2004093407A
公开(公告)日：2004-03-25
申请号：JP2002255804
申请日：2002-08-30
申请人： Nippon Telegraph & Telephone East Corp , 東日本電信電話株式会社
发明人： KIKUCHI KENJI , ARAKAWA KOJI , YAMAMOTO FUMIHIKO
IPC分类号： G01M11/00
摘要： PROBLEM TO BE SOLVED: To provide an apparatus and a method for identifying coated optical fibers capable of carrying out coated optical fiber identification test without reducing the quality of communications.
SOLUTION: The apparatus for identifying coated optical fibers is provided with both a location changing part 19 for changing the location of a coated optical fiber 4a of an optical fiber and a measuring part 17 for detecting variations in a specific polarized component of light caused by changes in the location of the coated optical fiber 4a of the optical fiber and measuring its amount of variation.
COPYRIGHT: (C)2004,JPO

10. 发明专利

JP2003294577A In-service testing method and determination device for determining existence/absence of test light cutoff filter 有权
标题翻译：用于确定测试光切割过滤器的存在/不存在的在线测试方法和确定装置
公开(公告)号：JP2003294577A
公开(公告)日：2003-10-15
申请号：JP2002097029
申请日：2002-03-29
申请人： Nippon Telegraph & Telephone East Corp , 東日本電信電話株式会社
发明人： WATANABE SATOSHI , YAMAMOTO FUMIHIKO , ARAKAWA KOJI
IPC分类号： G01M11/00 , H04B10/07 , H04B10/071 , H04B10/077 , H04B10/08
摘要： PROBLEM TO BE SOLVED: To prevent erroneous operation of a characteristic test of an optical path even when a test light cutoff filter is not arranged actually.
SOLUTION: Before characteristics of an optical path are examined, a test light cutoff filter existence/absence determining device 31 determines whether there is a test light cutoff filter 8 or not. In the test light cutoff filter existence/ absence determining device 31, existence/absence is determined on the basis of reflected light strength relationship between a test wavelength λ1 in a low reflectance area and a test wavelength λ2 in a high reflectance area of the test light cutoff filter 8. A modulation frequency of the test light 11 is set on the outside of a signal band of communication light 10, and a frequency of a communication signal and that of a test signal are multiplexed. When a plurality of test light cutoff filters with different cutoff wavelengths can be arranged, existence/absence of the test light cutoff filter and its type are determined on the basis of the reflected light strength relationship of the test wavelength matching each cutoff wavelength.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：即使实际上没有布置测试光截止滤波器，也可防止光路的特性测试的错误操作。解决方案：在检查光路的特性之前，测试光截止滤光器存在/不存在确定装置31确定是否存在测试光截止滤光器8。在测试光截止滤光器存在/不存在判定装置31中，根据低反射率区域中的测试波长λ1和测试光的高反射率区域中的测试波长λ2之间的反射光强度关系来确定是否存在截止滤波器8.测试光11的调制频率设置在通信光10的信号频带的外侧，通信信号的频率和测试信号的频率被复用。当可以布置具有不同截止波长的多个测试光截止滤波器时，基于与每个截止波长匹配的测试波长的反射光强度关系来确定测试光截止滤波器及其类型的存在/不存在。版权所有（C）2004，JPO

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