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1. 发明专利

JP2011166367A Method and apparatus for adjusting optical path length in optical path 有权
标题翻译：用于调整光路中光学路径长度的方法和装置
公开(公告)号：JP2011166367A
公开(公告)日：2011-08-25
申请号：JP2010025690
申请日：2010-02-08
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： YOSHIDA KOICHI , TANAKA FUMIAKI , NANDO KAZUTAKA , TSUJIMURA TAKESHI , AZUMA YUJI
IPC分类号： G02B26/00 , H04B10/032 , H04B10/038 , H04B10/25 , H04B10/27
摘要： PROBLEM TO BE SOLVED: To provide a method and apparatus for adjusting an optical path length in an optical path, which adjusts the optical path length with low loss by changing the optical length, while changing by a polarization controller, the branch ratio of a duplex optical path constituted of a polarization maintaining optical fiber formed between a pair of input polarization separation coupler and output polarization synthetic coupler in a detour line.
SOLUTION: The apparatus for adjusting the optical path length in the optical path is equipped with: the duplex optical path constituted of the polarization maintaining optical fiber 22 formed between a pair of input polarization separation coupler 13 and output polarization synthetic coupler 18; the polarization controller 12 connected to the input port side of the input polarization separation coupler 13 so as to change the branch ratio of the duplex optical path; optical fiber changeover devices 17, 19 for changing by prescribed length step, the optical path lengths to be arranged in the respective lines of the duplex optical path; and a continuous optical path length adjusting device 21 arranged at least one of the lines of the duplex optical path so as to continuously adjust the optical path length within a range including the prescribed length.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于调整光路中的光路长度的方法和装置，其通过改变光学长度来调节具有低损耗的光路长度，同时由偏振控制器改变，分支比由在一对输入偏振分离耦合器和输出偏振合成耦合器之间形成的偏振保持光纤构成的双向光路中的绕行线。解决方案：用于调整光路中的光路长度的装置配备有：由在一对输入偏振分离耦合器13和输出偏振合成耦合器18之间形成的保偏光纤22构成的双工光路; 偏振控制器12连接到输入偏振分离耦合器13的输入端口侧，以改变双工光路的分支比; 用于改变规定长度步长的光纤切换装置17,19，布置在双工光路的各行中的光路长度; 以及连续光路长度调整装置21，其配置双工光路的至少一条线，以便在包括规定长度的范围内连续地调整光路长度。版权所有（C）2011，JPO＆INPIT

2. 发明专利

JP2011128040A Optical fiber refractive index measuring device and optical fiber refractive index measuring method 有权
$Optical fiber refractive index measuring device and optical fiber refractive index measuring method$
标题翻译：光纤折射率测量装置和光纤折射率测量方法
公开(公告)号：JP2011128040A
公开(公告)日：2011-06-30
申请号：JP2009287388
申请日：2009-12-18
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： TANAKA FUMIAKI , YOSHIDA KOICHI , TSUJIMURA TAKESHI , AZUMA YUJI
IPC分类号： G01N21/41 , G01M11/00
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber refractive index measuring device and an optical fiber refractive index measuring method capable of measuring an optical fiber refractive index easily and accurately.
SOLUTION: This optical fiber refractive index measuring device includes an optical frequency chirp pulsing light source 1 for generating pulsing light p
in whose optical frequency is changed linearly, an optical branching device 2 for branching the pulsing light p
in from the optical frequency chirp pulsing light source 1 into a measuring route 4 and a reference route 5, an optical multiplexer 8 for multiplexing measuring pulsing light ϕ
1 propagating through the measuring route 4 with reference pulsing light ϕ
2 propagating through the reference route 5, an optical pulse detector 3 for detecting a pulse waveform of the multiplexed pulsing light p
out multiplexed by the optical multiplexer 8, an optical path length adjuster 6 for varying an optical path length of the reference route 5, and an optical connector 7 for connecting an optical fiber drawably in the middle of the measuring route 4.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：解决的问题：提供能够容易且准确地测量光纤折射率的光纤折射率测量装置和光纤折射率测量方法。解决方案：该光纤折射率测量装置包括用于在光频率线性变化的中产生脉冲光p 的光频啁啾脉冲光源1，用于分支脉冲的光分支装置2 光频啁啾脉冲光源1 中的光p 到测量路径4和参考路径5，用于多路复用测量脉冲光φ 1 的光复用器8传播通过通过参考路径5传播的具有参考脉冲光φ 2 的测量路径4，用于检测多路复用脉冲光p 输出的脉冲波形的光脉冲检测器3被复用光复用器8，用于改变基准路径5的光程长度的光程长度调节器6以及用于在测量路径4的中间可抽出光纤的光纤连接器7。）2011，JPO＆INPIT

3. 发明专利

JP2011085515A Polarization intensity measuring device and polarization intensity measuring method 有权
标题翻译：极化强度测量装置和极化强度测量方法
公开(公告)号：JP2011085515A
公开(公告)日：2011-04-28
申请号：JP2009239445
申请日：2009-10-16
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： INOUE MASAAKI , HONDA NAGETSU , ARAKI NORIYUKI , AZUMA YUJI
IPC分类号： G01M11/00 , G01J4/04
摘要： PROBLEM TO BE SOLVED: To measure a change of polarization intensity even when a length of optical fiber is insufficient.
SOLUTION: A test light transmitter 1 emits test light. A polarization controller 2 fixes the test light to linear polarization. A polarization rotor 3 controls a polarization angle of the test light. An optical coupler 4 emits the test light to a measured optical fiber 9 and receives back scattered light from the measured optical fiber 9. A polarizer 5 extracts one polarization component of the back scattered light. A signal controller 7 measures from the polarization component a polarization intensity of the back scattered light per distance in the measured optical fiber 9 and calculates a change period of the polarization intensity of the back scattered light from a measured result of the polarization intensity.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：即使当光纤的长度不足时也测量极化强度的变化。
解决方案：测试光发射机1发射测试光。偏振控制器2将测试光固定为线偏振。偏振转子3控制测试光的偏振角。光耦合器4将测试光发射到测量光纤9并从测量的光纤9接收回散射光。偏振器5提取背散射光的一个偏振分量。信号控制器7根据测量光纤9测量每个距离的背散射光的偏振分量，并根据偏振强度的测量结果计算背散射光的偏振强度的变化周期。版权所有（C）2011，JPO＆INPIT

4. 发明专利

JP2011022222A Input/output method for local signal light and input/output device for local signal light 有权
标题翻译：用于本地信号灯的本地信号灯和输入/输出设备的输入/输出方法
公开(公告)号：JP2011022222A
公开(公告)日：2011-02-03
申请号：JP2009165235
申请日：2009-07-14
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： TANAKA FUMIAKI , TSUJIMURA TAKESHI , YOSHIDA KOICHI , KATAYAMA KAZUNORI , AZUMA YUJI , SHIMIZU MASATOSHI
IPC分类号： G02B6/26 , G01M11/00 , G02B6/00
摘要： PROBLEM TO BE SOLVED: To provide an input/output method and an input/output device for local signal light for improving efficiency of incoming and outgoing radiation of signal light on an optical fiber side face without depending on wavelength. SOLUTION: This input/output device for local signal light includes a first fiber guide 6 bending a first optical fiber 4 into an arc shape, a second fiber guide 3 bringing an end face of a second optical fiber 2 close to a part of the side face of the first optical fiber 4 formed into the arc shape by the first fiber guide 6, a radiation path for receiving first signal light by the end face of the second optical fiber 2, and a refractive index changing means for bringing a refractive index of a clad on the side face of the first optical fiber 4 being an incidence path for transmitting second signal light coming from the end face of the second optical fiber 2 from a part of the side face of the first optical fiber 4 toward the inside of a core in single mode close to a refractive index of the core of the first optical fiber 4 temporarily. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供用于本地信号光的输入/输出方法和输入/输出装置，用于提高光纤侧面上的信号光的入射和射出辐射的效率，而不依赖于波长。解决方案：本地信号光的输入/输出装置包括将第一光纤4弯曲成弧形的第一光纤引导件6，将第二光纤2的端面靠近部分的第二光纤引导件3 由第一光纤引导件6形成为弧形的第一光纤4的侧面，由第二光纤2的端面接收第一信号光的辐射路径，以及折射率变更单元，第一光纤4的侧面上的包层的折射率是用于将来自第二光纤2的端面的第二信号光从第一光纤4的侧面的一部分朝向在单模中的芯内部临近接近第一光纤4的芯的折射率。版权所有（C）2011，JPO＆INPIT

5. 发明专利

JP2011002508A Optical jumper unit 有权
标题翻译：光学跳跃单元
公开(公告)号：JP2011002508A
公开(公告)日：2011-01-06
申请号：JP2009143493
申请日：2009-06-16
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： G02B6/40
摘要： PROBLEM TO BE SOLVED: To provide an optical jumper unit having a jumper optical fiber cord which is excellent in bending loss characteristics, and for avoiding communication shutoff due to catch or the like.SOLUTION: The optical jumper unit includes: a first connector 23 disposed in a case 21 so that optical connection from outside the case 21 is performed; an optical splitter 24 to multiplex/demultiplex signals, disposed in the case 21, whose multiplexing side is connected to the first connector 23 through an optical fiber 34; and single mode optical fiber cords 31, one end of each of which is connected to the demultiplexing side of the optical splitter 24, and the other end of each of which is connected to the second connector 32; wherein an optical fiber cord composed of a hole-assisted fiber is used as the optical fiber cord 31.
摘要翻译：要解决的问题：提供一种具有弯曲损耗特性优异的跳线光纤线路的光学跳线单元，并且用于避免由于卡扣等引起的通信关闭。解决方案：光学跳线单元包括：第一连接器23，其布置在在壳体21中，使得从外壳21的外部进行光连接; 配置在壳体21中的复用/解复用信号的光分路器24，其复用侧通过光纤34连接到第一连接器23; 和单模光纤线31，其一端连接到光分路器24的解复用侧，另一端连接到第二连接器32; 其中使用由空穴辅助纤维构成的光纤线作为光纤线31。

6. 发明专利

JP2010199856A Optical facility identification method and device 有权
标题翻译：光学设备识别方法和设备
公开(公告)号：JP2010199856A
公开(公告)日：2010-09-09
申请号：JP2009041139
申请日：2009-02-24
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： INOUE MASAAKI , HONDA NAGETSU , ARAKI NORIYUKI , AZUMA YUJI
IPC分类号： G02B6/00 , H04B10/07 , H04B10/071 , H04B10/077
摘要： PROBLEM TO BE SOLVED: To provide an optical facility identification method for an integrated optical fiber communication network that identifies types and positions of optical facilities in service and in real-time, without using a database.
SOLUTION: The optical facility identification method is configured; in a such a way that a test light is made incident from one end of an optical path 17 so as to measure the intensity change of a polarization component, distributed in the longitudinal direction of the optical path 17, from a change over time of a polarization component of back-scattered light by the test light, and optical facility, including the bending diameter of the optical fiber corresponding to the period of the intensity change of the polarization component, is identified.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于集成光纤通信网络的光学设备识别方法，其识别服务和实时中的光学设施的类型和位置，而不使用数据库。
解决方案：配置光学设备识别方法; 以这样的方式使测试光从光路17的一端入射，以便测量从光路17的纵向方向分布的偏振分量的强度变化鉴别出通过测试光的背散射光的偏振分量，以及包括与偏振分量的强度变化的周期相对应的光纤的弯曲直径的光学设备。版权所有（C）2010，JPO＆INPIT

7. 发明专利

JP2010151534A Optical fiber identification method and device therefor 有权
标题翻译：光纤识别方法及其设备
公开(公告)号：JP2010151534A
公开(公告)日：2010-07-08
申请号：JP2008328248
申请日：2008-12-24
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： HONDA NAGETSU , AZUMA YUJI
IPC分类号： G01M11/00 , G02B6/00
摘要： PROBLEM TO BE SOLVED: To perform identification of an optical fiber, even for optical fibers at a lower side of a beam splitter in a PON system does not generate a leakage light with respect to bending. SOLUTION: In this optical fiber identifying method for identifying predetermined optical fiber in a plurality of optical fibers, pulse test light is input to one of a predetermined optical fiber; at least either the temperature or the distortion of an optical fiber is changed by a loading means disposed on a predetermined optical fiber; change in the frequency of Brillouin scattering light, corresponding to the pulse test light, is observed at one end of a predetermined optical fiber, and optical fiber that caused the temperature or the distortion change is specified. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了执行光纤的识别，即使在PON系统中的分束器的下侧的光纤也不会产生相对于弯曲的泄漏光。解决方案：在用于识别多根光纤中的预定光纤的光纤识别方法中，脉冲测试光被输入到预定光纤之一; 光纤的温度或变形中的至少一个由设置在预定光纤上的加载装置改变; 在预定光纤的一端观察到对应于脉冲测试光的布里渊散射光的频率变化，并且指定引起温度或变形变化的光纤。版权所有（C）2010，JPO＆INPIT

8. 发明专利

JP2010097712A Connector connection device, connector insertion-extraction tool, and connector insertion-extraction management system 有权
标题翻译：连接器连接装置，连接器插入式取出工具和连接器插入式抽取管理系统
公开(公告)号：JP2010097712A
公开(公告)日：2010-04-30
申请号：JP2008265323
申请日：2008-10-14
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： URUNO SHIGENORI , AZUMA YUJI , WAKE MASAKI
IPC分类号： H01R13/641 , G02B6/38 , H01R43/26
摘要： PROBLEM TO BE SOLVED: To previously prevent false recognition of an operation object by causing an operator who performs insertion and pullout of a connector plug to surely recognize a connector adaptor terminal as the operation object.
SOLUTION: Connector connection boards 111-113 each of which includes a connector adaptor 12 for performing connection or pullout of a connector plug in an united manner are installed respectively to circuit boards 131-133, an optical display element 14 is disposed in a position corresponding to the connector adaptor 12 of each board, and modulation drive of the optical display element 14 is controlled by a display control device 17. Thus, a modulated light is emitted as identification information capable of specifying the connector adaptor 12 in connector insertion-pullout operation, whereby the operator can perform the insertion-pullout operation while confirming the identification information by use of a tool having a function of identifying the emitted light information.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：通过使执行连接器插头的插拔的操作者可靠地识别连接器适配器端子作为操作对象，防止对操作对象的错误识别。
解决方案：连接器连接板111-113分别安装在电路板131-133上，每个连接器连接板包括用于以连接方式连接或拔出连接器插头的连接器适配器12，光学显示元件14设置在对应于每个板的连接器适配器12的位置以及光学显示元件14的调制驱动由显示控制装置17控制。因此，发射调制光作为能够指定连接器适配器12的连接器插入的识别信息延伸操作，由此操作者可以通过使用具有识别发出的光信息的功能的工具来确认识别信息来执行插入拉出操作。版权所有（C）2010，JPO＆INPIT

9. 发明专利

JP2009216521A Optical filter existence confirmation method and optical filter existence confirmation device of optical path 有权
标题翻译：光学滤波器存在确定方法和光学滤波器存在的光路确认设备
公开(公告)号：JP2009216521A
公开(公告)日：2009-09-24
申请号：JP2008060272
申请日：2008-03-10
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： OGUSHI KITARO , ARAKI NORIYUKI , AZUMA YUJI
IPC分类号： G01M11/00 , H04B10/07 , H04B10/077 , H04B10/272
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber existence confirmation method of an optical path for determining current use/non-current use of a furthermore lower part than a branch point, when a loss of a lower optical path is large, in a PON (Passive Optical Network) having an optical branch element.
SOLUTION: In this optical fiber existence confirmation method of the optical path for determining existence of test light shielding filters 18, 21 at lower ends of the optical path comprising one upper optical fiber cable 15 and a plurality of lower optical fiber cores 17, 20, 23, 25 branched by an optical splitter 16, existence of the lower optical fiber cores 17, 20, 23, 25 having an excessive loss and the test light shielding filters 18, 21 at the lower ends thereof is determined by applying approximate calculation for removing an influence of incident test light.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提供用于确定比分支点更低的部分的当前使用/非当前使用的光路的光纤存在确认方法，当下光路的损耗大时，在具有光分支元件的PON（被动光网络）中。解决方案：在用于确定光路下端的测试光屏蔽滤光片18,21的存在的光路存在确认方法中，包括一个上光纤电缆15和多个下光纤芯17 ，20,23,25，通过分光器16分支，具有过度损耗的下光纤芯17,20,23,25的存在和其下端的测试光屏蔽滤光器18,21的存在通过应用近似值消除入射试验光的影响的计算。版权所有（C）2009，JPO＆INPIT

10. 发明专利

JP2009025052A Method and device for confirming presence or absence of optical filter in optical path 有权
标题翻译：用于确认光学滤波器在光路中的存在或不存在的方法和装置
公开(公告)号：JP2009025052A
公开(公告)日：2009-02-05
申请号：JP2007186247
申请日：2007-07-17
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： OGUSHI KITARO , AZUMA YUJI , ARAKI NORIYUKI
IPC分类号： G01M11/00
摘要： PROBLEM TO BE SOLVED: To provide a confirmation method of presence or absence of an optical filter in an optical path, for determining the presence or absence of the optical filter which cuts off a specific wavelength at the lower end of the optical path composed of one upper optical path and a plurality of lower optical paths branched through the use of a light branching element.
SOLUTION: Light of a wavelength λ1 being in the cut-off region of the optical filter and light of a wavelength λ2 being in its passing region are made incident from the upper end of the upper optical path. A bent part is provided in a lower optical path being an object of determination. Powers of beams of leakage light of the wavelengths λ1, λ2 traveling downwards from above at the bent part, and powers of beams of leakage light of the wavelengths λ1, λ2 traveling upwards from below are measured. Differences in power level ΔP
UP , ΔP
Down at the wavelengths λ1, λ2 between the powers of the beams of leakage light of the wavelength λ1, λ2 traveling downwards from above and the powers of the beams of leakage light traveling upwards from below are found. It is determined that the optical filter does not exist when the power level differences ΔP
UP and ΔP
Down are approximately equal, and it is determined that the optical filter exists when the power level difference ΔP
UP is smaller than ΔP
Down .
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供光路中存在或不存在滤光器的确认方法，用于确定在光路的下端切断特定波长的滤光器的存在或不存在由一个上光路和通过使用光分支元件分支的多个下光路构成。解决方案：从光学滤波器的截止区域中的波长λ1的光和波长λ2在其通过区域的光从上部光路的上端入射。弯曲部分设置在作为确定对象的下部光路中。测量在弯曲部分从上方向下行进的波长λ1，λ2的漏光束的功率，以及从下方向上移动的波长λ1，λ2的漏光的光束的功率。在波长λ1，λ2的波长的光束的波长λ1，λ2之间的功率水平差ΔP UP ，ΔP DOWN ，从上方向下行进的λ2和发现从下方向上移动的泄漏光束的功率。当功率电平差ΔP UP 和ΔP DOWN 大致相等时，确定滤光器不存在，并且当功率电平电平差ΔP UP 小于ΔP Down 。版权所有（C）2009，JPO＆INPIT

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