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11. 发明专利

JP2008309958A Method for discriminating termination conditions for optical fiber 有权
标题翻译：用于辨别光纤终端条件的方法
公开(公告)号：JP2008309958A
公开(公告)日：2008-12-25
申请号：JP2007156625
申请日：2007-06-13
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： ITO FUMIHIKO , AZUMA YUJI , HONDA NAGETSU
IPC分类号： G02B6/00 , H04B10/07 , H04B10/071 , H04B10/077 , H04B10/272
摘要： PROBLEM TO BE SOLVED: To surely discriminate the termination conditions of an optical fiber, in a PON mode. SOLUTION: With two-wavelength OTDR 1 connected to the upstream side of an optical splitter 2, and with the reflection (shut-off) bandpass of a test light shielding filter 6 set at a wavelength λL-λH, the wavelengths λ1, λ2 of the test optical pulse of the two-wavelength OTDR 1 are set, such that λ1 is inside the shutoff bandpass and that λ2 is outside the shutoff bandpass. Under this setting, without giving bending to a plurality of coated optical fibers 8, first measurement of reflectivities R1, R2 is performed by the two wavelengths λ1, λ2. Then, with bending given deliberately to only the coated optical fiber of the operation target, second measurement of the reflectivities is performed by the wavelength of either λ1 or λ2. On the optical fiber causing change in the reflectivity, before or after the second measurement, if R1/R2=14 dB based on the first measurement, it is discriminated as the termination by the test light-shielding filter 6; and if R1/R2=0 dB it is determined as termination by an open point 5. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：在PON模式中，确定地区分光纤的终止条件。解决方案：将双波长OTDR 1连接到光分路器2的上游侧，并且通过设置为波长λL-λH的测试光屏蔽滤光器6的反射（截止）带通，波长λ1 ，设定双波长OTDR 1的测试光脉冲的λ2，使得λ1在截止带通内，λ2在截止带通外。在这种情况下，在不给予多个被覆光纤8的弯曲的情况下，通过两个波长λ1，λ2进行反射率R1，R2的第一测量。然后，仅弯曲给予操作对象的涂覆光纤，反射率的第二次测量由λ1或λ2的波长进行。在导致反射率变化的光纤上，在第二测量之前或之后，如果基于第一次测量的R1 / R2 = 14dB，则被鉴别为由测试光屏蔽滤光器6的端接; 如果R1 / R2 = 0dB，则由开路点5确定为终止。版权所有（C）2009，JPO＆INPIT

12. 发明专利

JP2008244664A Method and system for monitoring optical line, and optical line monitoring device and program thereof 有权
标题翻译：用于监控光线的方法和系统以及光线监测装置及其程序
公开(公告)号：JP2008244664A
公开(公告)日：2008-10-09
申请号：JP2007080152
申请日：2007-03-26
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： TANAKA FUMIAKI , OGUSHI KITARO , AZUMA YUJI
IPC分类号： H04B10/07 , H04B10/071 , H04B10/077
摘要： PROBLEM TO BE SOLVED: To provide an optical line monitoring method capable of monitoring an optical line with high accuracy, even during communication service, to provide an optical line monitoring system, and to provide an optical line monitoring device and a program thereof at low cost.
SOLUTION: Normal reception power P(λ) with respect to transmission power Io(λ) of measurement light 9 in an optical fiber 7 to be monitored, abnormal reception power P(λ), and return light power S(λ, Δxi) are measured. From the ratio of the normal reception power to the abnormal reception power, an abnormal loss coefficient A(Δxi) in an abnormal section is obtained by a formula 3. By having the A(Δxi) substituted for the non-illustrated formulas 6, 7 to obtain Δxi, where return light power S'(λ, Δxi) is closest to the measurement value S(λ, Δxi), an abnormal occurrence section, where i=1, 2, ..., n is deduced.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决的问题：即使在通信服务期间，提供能够高精度地监视光线路的光线路监视方法，提供光线路监视系统，并提供光线路监视装置及其程序以低成本。解决方案：关于待监视光纤7中的测量光9的发射功率Io（λ）的正常接收功率P（λ），异常接收功率P（λ）和返回光功率S（λ， Δxi）。从正常接收功率与异常接收功率的比例，通过公式3获得异常部分中的异常损耗系数A（Δxi）。通过将A（Δxi）代入未示出的公式6,7 得到Δxi，其中返回光功率S'（λ，Δxi）最接近测量值S（λ，Δxi），推导出其中i = 1,2，...，n的异常发生部分。版权所有（C）2009，JPO＆INPIT

13. 发明专利

JP2008244663A Method and system for monitoring optical line, and optical line monitoring device and program thereof 有权
标题翻译：用于监控光线的方法和系统以及光线监测装置及其程序
公开(公告)号：JP2008244663A
公开(公告)日：2008-10-09
申请号：JP2007080151
申请日：2007-03-26
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： TANAKA FUMIAKI , OGUSHI KITARO , AZUMA YUJI
IPC分类号： H04B10/07 , H04B10/071 , H04B10/077 , H04J14/00 , H04J14/02
摘要： PROBLEM TO BE SOLVED: To provide an optical line monitoring method capable of monitoring an optical line in a wavelength multiplex optical transmission system with high accuracy, to provide an optical line monitoring system, and to provide an optical line monitoring device and a program thereof at low cost.
SOLUTION: Transmission power Io(λi) of each wavelength light multiplexed to wavelength multiplex light 11 in an optical fiber 9 to be monitored, normal return light power SA (λi, Δxi), and abnormal return light power SB (λi, Δxi) are measured. From each measurement value, return light power S' is calculated from a formula 7, with an abnormal loss position Δxi and an abnormal loss coefficient A (Δxi) as parameters, thus determining the abnormal loss position Δxi and the abnormal loss coefficent A(Δxi), where the value is brought closer to the abnormal return light power SB (λi, Δxi).
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决的问题：提供一种能够高精度地监视波长复用光传输系统中的光线路的光线路监视方法，提供光线路监视系统，并提供光线路监视装置和程序低成本。解决方案：在要监视的光纤9中的波长多路复用光11上复用的每个波长的光的发射功率Io（λi），正常返回光功率SA（λi，Δxi）和异常返回光功率SB（λi， Δxi）。从每个测量值，从公式7计算返回光功率S'，异常损耗位置Δxi和异常损耗系数A（Δxi）作为参数，从而确定异常损耗位置Δxi和异常损耗系数A（Δxi ），其中值越接近异常返回光功率SB（λi，Δxi）。版权所有（C）2009，JPO＆INPIT

14. 发明专利

JP2008233384A Variable optical attenuator 有权
标题翻译：可变光学衰减器
公开(公告)号：JP2008233384A
公开(公告)日：2008-10-02
申请号：JP2007071042
申请日：2007-03-19
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： TANAKA FUMIAKI , OGUSHI KITARO , AZUMA YUJI
IPC分类号： G02B26/02 , G02B6/00
摘要： PROBLEM TO BE SOLVED: To provide a variable optical attenuator capable of adjusting high power light exceeding 1 W to a required optical level. SOLUTION: The variable optical attenuator for attenuating high power light transmitted by an optical fiber, in a state of light includes: two optical fibers 21 having end faces butted to each other on an optical axis; a liquid refractive index adjusting agent 24 which has a part of respective optical fibers 21 including the end faces, inserted thereinto and has almost the same refractive index as cores of optical fibers 21 under passage of the high power light; and an actuator 28 in a lengthwise direction which changes an interval between the end faces of two optical fibers 21. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供能够将超过1W的高功率光调节到所需光学水平的可变光衰减器。解决方案：用于衰减由光纤传输的大功率光的可变光衰减器，在光的状态下包括：两个光纤21，其端面在光轴上彼此对接; 液体折射率调节剂24，其具有包括端面的各个光纤21的一部分，插入其中并且具有与大功率光通过下的光纤21的芯几乎相同的折射率; 以及沿长度方向的致动器28，其改变两根光纤21的端面之间的间隔。版权所有：（C）2009，JPO＆INPIT

15. 发明专利

JP2011186756A Image display system and image display method 有权
标题翻译：图像显示系统和图像显示方法
公开(公告)号：JP2011186756A
公开(公告)日：2011-09-22
申请号：JP2010050981
申请日：2010-03-08
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： WAKE MASAKI , WATANABE WATARU , ENOMOTO YOSHITAKA , AZUMA YUJI
IPC分类号： G06T1/00 , H01R13/64
摘要： PROBLEM TO BE SOLVED: To improve convenience for use of connector adaptor terminals by providing information of the connector adaptor terminals on a connector connection board to an operator at high reliability. SOLUTION: A plurality of connector adapter terminals 11 and a marker 12 for detecting the position of each of the plurality of connector adapter terminals 11 are arranged on the connector connection board. The connector adapter terminals 11 and the marker 12 on the connector connection board are together photographed, the position of each of the connector adapter terminals 11 on the photographed image is detected based on the position of the marker on the photographed image and positional relation information indicating relation between the position of each of the plurality of connector adapter terminals 11 on the connector connection board and the position of the marker 12, and an adaptor display image indicating the position of each of the connector adapter terminals 11 is displayed so as to be superposed to the photographed image based on the detected position. Tag information concerned with the connector adaptor terminal corresponding to the selected adaptor display image is read out from installation information DB and displayed. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了提高连接器适配器端子的使用方便性，通过以高可靠性向连接器连接板向操作者提供连接器适配器端子的信息。解决方案：多个连接器适配器端子11和用于检测多个连接器适配器端子11中的每一个的位置的标记12布置在连接器连接板上。连接器适配器端子11和连接器连接板上的标记12一起被拍摄，基于拍摄图像上的标记的位置来检测每个连接器适配器端子11在拍摄图像上的位置，并且指示连接器连接板上的多个连接器适配器端子11中的每一个的位置与标记12的位置之间的关系以及指示每个连接器适配器端子11的位置的适配器显示图像被显示为重叠基于检测到的位置到拍摄图像。从安装信息DB读出与所选择的适配器显示图像相对应的连接器适配器终端的标签信息并显示。版权所有（C）2011，JPO＆INPIT

16. 发明专利

JP2011055281A Method and system of identifying optical facility 有权
标题翻译：识别光学设备的方法和系统
公开(公告)号：JP2011055281A
公开(公告)日：2011-03-17
申请号：JP2009202818
申请日：2009-09-02
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： HONDA NAGETSU , INOUE MASAAKI , ARAKI NORIYUKI , AZUMA YUJI
IPC分类号： H04B10/07 , G01M11/00 , H04B10/071 , H04B10/077 , H04B10/272
摘要： PROBLEM TO BE SOLVED: To provide a method of identifying an optical facility, identifying a housing facility of an optical fiber by an optical measurement, in an optical fiber line lower than an optical splitter.
SOLUTION: The method of identifying the optical facility identifies the condition of a housing facility of an optical fiber configuring an optical line lower than an optical splitter 4, using an optical fiber having a unique Brillouin frequency shift different from each other in each aerial optical fiber cables 5
1 -5
m connected with a part lower than the optical splitter 4, in an optical fiber line configuring the optical line including the optical splitter 4. The variation of the Brillouin frequency shift generated in the housing facility of the optical fiber is detected by a Brillouin optical pulse tester (BOTDR) to identify the condition of the housing facility of the optical fiber.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种识别光学设备的方法，通过光学测量识别光纤的住宅设施，在低于分光器的光纤线路中。解决方案：使用具有彼此不同的唯一布里渊频移的光纤在每个中识别光学设备的方法来识别构成低于光分路器4的光线路的光纤的住宅设施的状态在构成包括光分路器4的光线路的光纤线路中，与低于分光器4的部分连接的空中光纤电缆5 1 -5 m 。通过布里渊光脉冲测试器（BOTDR）检测在光纤的住宅设备中产生的布里渊频移的变化，以识别光纤的住房设施的状况。版权所有（C）2011，JPO＆INPIT

17. 发明专利

JP2010286304A Method and device for adjusting optical path length using magnetic field in hollow optical waveguide 有权
标题翻译：使用中空光波导中的磁场调节光路长度的方法和装置
公开(公告)号：JP2010286304A
公开(公告)日：2010-12-24
申请号：JP2009139197
申请日：2009-06-10
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： KATAYAMA KAZUNORI , TSUJIMURA TAKESHI , YOSHIDA KOICHI , TANAKA FUMIAKI , HONDA NAGETSU , AZUMA YUJI
IPC分类号： G01B11/00
摘要： PROBLEM TO BE SOLVED: To set the length of an optical path to a desired value by moving a reflector inserted in the hollow part of an optical waveguide in the longitudinal direction of the optical waveguide by a magnetic field generating means. SOLUTION: This optical path length adjusting method uses a magnetic field in the hollow optical waveguide wherein the reflector 501 having magnetism movably is inserted in the longitudinal direction into the hollow part of the optical waveguide 400 of a hollow structure, the magnetic field generating means 504 generating a magnetic field installed outside the optical waveguide 400 is arranged, and the optical path length in the optical waveguide 400 is adjusted by moving the reflector 501 in the longitudinal direction of the optical waveguide 400 by the magnetic field generating means 504. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：通过用磁场产生装置移动插入在光波导的中空部分中的反射器在光波导的纵向方向上将光路的长度设置为所需值。解决方案：该光路长度调节方法使用中空光波导中的磁场，其中具有可移动的磁性的反射器501沿纵向插入中空结构的光波导400的中空部分，磁场布置产生安装在光波导400外部的磁场的发生装置504，并且通过磁场发生装置504在光波导400的纵向方向上移动反射器501来调节光波导400中的光路长度。版权所有（C）2011，JPO＆INPIT

18. 发明专利

JP2010160357A Optical fiber cord and insertion/extraction tool for the same 有权
标题翻译：光纤线和插入/拔出工具
公开(公告)号：JP2010160357A
公开(公告)日：2010-07-22
申请号：JP2009002910
申请日：2009-01-08
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： AOZASA SHINICHI , ENOMOTO YOSHITAKA , WAKE MASAKI , AZUMA YUJI
IPC分类号： G02B6/00 , G01M11/00 , G02B6/44
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber cord which is visually discriminated, by making visible light incident on the clad of an optical fiber and by making light leak from the optical fiber and by also making the light partially transmit through the outer jacket.
SOLUTION: The optical fiber cord includes a visible-light introducing portion 13, which is provided to an optical connector 17 fitted to the optical fiber cord 11 and makes the visible light be incident on the cladding 15 of the optical fiber of the optical fiber cord 11; and a visible light source 12, which makes the visible light be incident on the visible-light introducing part 13.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种视觉上被鉴别的光纤线，通过使入射到光纤的包层上的可见光并且通过使光纤的光泄漏并且还使得光部分地透射通过光纤外套。解决方案：光纤线包括可见光引入部分13，该可见光引入部分13设置在光纤连接器17上，该光学连接器17装配到光纤线11上，并使可见光入射到光纤的光纤的包层15上光纤线11; 和可见光源12，其使可见光入射到可见光导入部13上。版权所有（C）2010，JPO＆INPIT

19. 发明专利

JP2010008389A Beam path testing method, waveform analyzer, and program 有权
标题翻译：波束路径测试方法，波形分析仪和程序
公开(公告)号：JP2010008389A
公开(公告)日：2010-01-14
申请号：JP2008171678
申请日：2008-06-30
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： ENBUTSU KOUJI , ARAKI NORIYUKI , AZUMA YUJI , HONDA NAGETSU
IPC分类号： G01M11/00
摘要： PROBLEM TO BE SOLVED: To precisely measure the state of an individual branch fiber in the downstream of an optical splitter at low cost.
SOLUTION: In the longest branch fiber, back scattered light information on the branch fiber is singly restored based on a back scattered light waveform generated by reflection of a test light pulse on an FBG (Fiber Bragg Grating) type optical filter, namely waveform data of a folded waveform. Based on the restored information, the back scattered light information on the next longer branch fiber is singly restored. Thus, the individual back scattered light information from the long branch fiber to a short branch fiber is sequentially calculated and restored, thereby singly restoring the back scattered light information of all branch fibers.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：以低成本精确地测量分光器下游的单独分支光纤的状态。解决方案：在最长的分支光纤中，基于在FBG（光纤布拉格光栅）型光学滤波器上的测试光脉冲的反射产生的背散射光波形，单独恢复分支光纤上的背散射光信息，即折叠波形的波形数据。基于恢复的信息，单独恢复下一个较长分支光纤上的背散射光信息。因此，依次计算和恢复从长分支光纤到短支路光纤的各个背散射光信息，从而单独恢复所有支路光纤的背散射光信息。版权所有（C）2010，JPO＆INPIT

20. 发明专利

JP2009244610A Method of contrasting cores of optical fiber and device 有权
标题翻译：对比光纤和器件的方法
公开(公告)号：JP2009244610A
公开(公告)日：2009-10-22
申请号：JP2008091289
申请日：2008-03-31
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： HONDA NAGETSU , ARAKI NORIYUKI , AZUMA YUJI
IPC分类号： G02B6/00
摘要： PROBLEM TO BE SOLVED: To allow contrasting cores for respective optical fibers between an optical splitter and an ONU in a PON system and contrasting cores for optical fibers which does not bring about leaked light in bending the optical fibers. SOLUTION: In the method of contrasting cores of optical fiber being a work target out of a plurality of optical fibers, such a configuration is provided that pulse test light is sent from one end of the work target optical fiber with a prescribed sending period T and the reception intensity of a prescribed polarized component of return light reflected on the other end and returned after a prescribed time. Polarization fluctuation is given to the pulse test light and the return light at the other end of the work target optical fiber, and the reception intensity of the prescribed polarization component of the return light returned the prescribed time after having sent the pulse test light is detected, and it is detected whether or not the reception intensity is varied due to the polarization fluctuation to specify the optical fiber in which the polarization fluctuation has been given to the pulse test light. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了允许在PON系统中的光分路器和ONU之间的各个光纤的对比的核心以及在光纤弯曲时不会引起泄漏的光的对比的核心。解决方案：在以多个光纤为对象的作为工作目标的光纤的核心对比的方法中，提供脉冲测试光从工作目标光纤的一端以规定的发送期间T和在另一端反射的返回光的规定的偏振分量的接收强度在规定时间之后返回。给予工作目标光纤的另一端的脉冲测试光和返回光的极化波动，并且检测到发送脉冲测试光之后返回光的指定偏振分量的接收强度返回了规定时间，并且检测由于偏振波动而导致的接收强度是否变化，以指定对脉冲测试光给出极化波动的光纤。版权所有（C）2010，JPO＆INPIT

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