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21. 发明专利

JP2014045410A Method of detecting optical path length difference of duplex optical transmission line and detector of the same 有权
标题翻译：检测双重光学传输线的光路长度差异及其检测器的方法
公开(公告)号：JP2014045410A
公开(公告)日：2014-03-13
申请号：JP2012187413
申请日：2012-08-28
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： MANABE TETSUYA , NANDO KAZUTAKA , KATAYAMA KAZUNORI , HIGASHI YUJI
IPC分类号： H04B10/073 , H04B10/038
摘要： PROBLEM TO BE SOLVED: To reliably detect an optical path length difference even when there is a difference in optical power between a test signal light that transmits a main line and a test signal light that transmits a bypass.SOLUTION: Different wavelengths are used for a test signal light L21 that transmits a main line 102 and a test signal light L22 that transmits a bypass 103. By adjusting an optical power difference before multiplexing two test signal lights L21 and L22 in an upper optical branch coupler 202, reliable detection of an optical path length difference is made possible even when there is an optical power difference between the test signal light L21 that transmits the main line 102 and the test signal light L22 that transmits the bypass 103.
摘要翻译：要解决的问题：即使在发送主线的测试信号光与发送旁路的测试信号光之间存在光功率差时，也可以可靠地检测光程长度差。解决方案：不同波长用于发送主线102的测试信号光L21和发送旁路103的测试信号光L22。通过在上部光分支耦合器202中复用两个测试信号光L21和L22之前调整光功率差，可靠地检测光学即使发送主线路102的测试信号光L21和发送旁路103的测试信号光L22之间存在光功率差，也可以实现路径长度差。

22. 发明专利

JP2013002952A Optical fiber non-cut type optical input/output device and optical fiber non-cut type optical input/output method 有权
标题翻译：光纤非切割型光输入/输出装置和光纤非切割型光输入/输出方法
公开(公告)号：JP2013002952A
公开(公告)日：2013-01-07
申请号：JP2011134315
申请日：2011-06-16
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： HIGASHI YUJI , NANDO KAZUTAKA , HONDA NAGETSU , TANAKA FUMIAKI
IPC分类号： G01M11/00 , G01M11/02 , G02B6/42
摘要： PROBLEM TO BE SOLVED: To adjust an optimal installation position of an optical probe to be abutted from the side in order to input/output an optical signal.SOLUTION: Emission light from a test section 7 is emitted from a distal end of an optical probe section 4, emission light from the distal end of the optical probe section 4 is made incident to a bent portion of a first optical fiber F1, and light leaking reflection light that the light incident from the bent portion of the first optical fiber F1 generates, from the bent portion of the first optical fiber F1 is received by the optical probe section 4. In the test section 7, a peak value of reflectance waveform distribution data is acquired from the leakage light received by the optical probe section 4, and a control section 8 controls a movable part 3 to a position where the peak value becomes maximum.
摘要翻译：要解决的问题：调整要从侧面抵接的光学探针的最佳安装位置，以输入/输出光信号。解决方案：来自测试部分7的发射光从光学探头部分4的远端发射，来自光学探头部分4的远端的发射光入射到第一光纤F1的弯曲部分，并且从第一光纤F1的弯曲部分入射的光从第一光纤F1的弯曲部分入射的光被光探头部分4接收。在测试部分7中，峰值从光探头部分4接收的泄漏光获取反射波形分布数据，并且控制部分8将可移动部分3控制到峰值变为最大的位置。版权所有（C）2013，JPO＆INPIT

23. 发明专利

JP2012253418A Optical access network system and its communication redundancy method 有权
标题翻译：光接入网络系统及其通信冗余方法
公开(公告)号：JP2012253418A
公开(公告)日：2012-12-20
申请号：JP2011122257
申请日：2011-05-31
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： NANDO KAZUTAKA , TANAKA FUMIAKI , YOSHIDA KOICHI , HIGASHI YUJI , MANABE TETSUYA
IPC分类号： H04B10/02 , H04B10/20
摘要： PROBLEM TO BE SOLVED: To realize high reliability of a communication network by making it possible to use a service through another communication path if abnormality occurs in communication on one communication path of duplicated communication paths.SOLUTION: A communication path is made duplex. The wavelength of signal light on one communication path of communication paths (7, 8) is converted into a different wavelength than that on the other path (54), the difference of optical path length of each communication path is measured by test pulse light (52), and based on its measurement result, optical path length is controlled such that the optical path lengths accord with each other (55, 53). Then, the optical power level difference of each communication path is measured by test pulse light (51b), and the optical power level of the second communication line 8 is attenuated and adjusted so that the optical power level difference will be in a permissible range. Thus, by always adjusting the optical path length within a range in which a link is not cut-off between communication devices 1, 2, even if abnormality occurs in communication on one communication path, the service will be available on the other communication path.
摘要翻译：要解决的问题：为了实现通信网络的高可靠性，如果在重复通信路径的一个通信路径上的通信中发生异常，则可以通过另一通信路径使用服务。解决方案：通信路径是双工的。在通信路径（7,8）的一个通信路径上的信号光的波长被转换成与另一路径（54）不同的波长，每个通信路径的光路长度的差异通过测试脉冲光（ 52），并且基于其测量结果，控制光路长度使得光路长度彼此一致（55,53）。然后，通过测试脉冲光（51b）测量每个通信路径的光功率电平差，并且衰减和调整第二通信线8的光功率电平，使得光功率电平差将在允许范围内。因此，通过在通信装置1,2之间的链路不断开的范围内始终调整光路长度，即使在一个通信路径上的通信中发生异常，也可以在其他通信路径上使用。版权所有（C）2013，JPO＆INPIT

24. 发明专利

JP2012169742A Optical path length adjustment device and optical path length adjustment method 有权
标题翻译：光路长度调整装置和光路长度调整方法
公开(公告)号：JP2012169742A
公开(公告)日：2012-09-06
申请号：JP2011027146
申请日：2011-02-10
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 , MANABE TETSUYA , HIGASHI YUJI
IPC分类号： H04B10/08
摘要： PROBLEM TO BE SOLVED: To adjust the optical path length of duplexed optical lines at low loss and high speed.SOLUTION: A polarization separation coupler 11 is located at a branch point of duplexed optical lines using polarization maintaining optical fiber and also a polarization synthetic coupler 12 is located at a synthesizing point of the duplexed optical lines. Furthermore, optical fiber switching devices 13 and 14 which change the optical line length in steps of certain length are located on each of the duplexed optical lines, and an optical fiber 15 having half the certain length is located on only one side of the duplexed optical lines. Each optical line has branch couplers 16 and 17 and optical power monitoring photodetectors 191 and 192 located thereon. Optical path length adjustment is carried out by switching over in combined steps of the certain length in this configuration.
摘要翻译：要解决的问题：以低损耗和高速度调整双工光线路的光路长度。解决方案：偏振分离耦合器11位于使用偏振保持光纤的双工光线路的分支点处，并且偏振合成耦合器12位于双工光线路的合成点处。此外，将一定长度的光线路长度变化的光纤交换装置13,14位于双绞线的每一条线上，具有一定长度的一半的光纤15位于双工光学器件的一侧线。每个光线路具有位于其上的分支耦合器16和17以及光功率监视光电检测器191和192。在该配置中，通过在一定长度的组合步骤中切换来进行光路长度调整。版权所有（C）2012，JPO＆INPIT

25. 发明专利

JP2011186172A Optical fiber coupling method and device for local signals 有权
标题翻译：光纤耦合方法和本地信号装置
公开(公告)号：JP2011186172A
公开(公告)日：2011-09-22
申请号：JP2010050971
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： TANAKA FUMIAKI , NANDO KAZUTAKA , TSUJIMURA TAKESHI , YOSHIDA KOICHI , AZUMA YUJI
IPC分类号： G02B6/287
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber coupling method and a device for local signals to improve the incidence/emission efficiency of signal light on the side face of an optical fiber. SOLUTION: In the optical fiber coupling method for local signals, a first optical fiber 4 and a second optical fiber 7 are optically connected by successively executing: a first procedure (Fig.1(a)) of stretching the first optical fiber 4 so that the core diameter of the coupling part 6 of the first optical fiber 4 may become smaller than the core diameter of other parts; a second procedure (Fig.1(b)) of bending the coupling part 6 of the first optical fiber 4 in an arc shape and bringing the end face 7a of the second optical fiber 7 closer to the coupling part 6 from the roughly tangential direction of the center of the coupling part 6; and a third procedure (Fig.1(c)) of applying a refractive index matching agent 8 roughly equal to the refractive index of the clad of the first optical fiber 4 to the range from the coupling part 6 of the first optical fiber 4 to the end face 7a of the second optical fiber 7. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种光纤耦合方法和用于本地信号的装置，以提高光纤侧面上的信号光的入射/发射效率。解决方案：在本地信号的光纤耦合方法中，第一光纤4和第二光纤7通过连续执行光学连接：第一过程（图1（a）），其拉伸第一光纤 4，使得第一光纤4的耦合部分6的芯径可以变得小于其他部分的芯直径; 将第一光纤4的耦合部6弯曲成弧形并使第二光纤7的端面7a从大致切线方向靠近耦合部6的第二工序（图1（b））的连接部6的中心; 和将第一光纤4的包层的折射率近似等于第一光纤4的耦合部分6的折射率匹配剂8的第三步骤（图1（c））施加到第二光纤7的端面7a。版权所有（C）2011，JPO＆INPIT

26. 发明专利

JP2014212391A 可変遅延装置及びその遅延量調整方法有权
标题翻译：可变延迟装置及其延迟量的调整方法
公开(公告)号：JP2014212391A
公开(公告)日：2014-11-13
申请号：JP2013086609
申请日：2013-04-17
申请人：日本電信電話株式会社 , Nippon Telegr & Teleph Corp
发明人： NANDO KAZUTAKA , MANABE TETSUYA , KATAYAMA KAZUNORI , HONDA NAGETSU , INOUE MASAAKI
IPC分类号： H03K5/14
CPC分类号： H03K5/14
摘要：【課題】冗長化方式であっても、電気信号を劣化させずに大きな遅延量を調整可能とする。【解決手段】第1の分配器によって電気信号を2経路に分け、一方を第1の可変遅延器、他方を第2の可変遅延器で遅延させ、第1及び第2の可変遅延器から出力される電気信号をそれぞれ第2及び第3の分配器によって2経路に分ける。第2及び第3の分配器で分配される一方の電気信号同士の遅延量差を遅延量差計測器によって計測する。一方、第2及び第3の分配器でそれぞれ分配される他方の電気信号の伝送経路を第1及び第2のスイッチによって断続し、第1のスイッチ及び前記第2のスイッチそれぞれを通過した電気信号を合波器によって合波して出力する。ここで、遅延量差計測器で計測される遅延量差が許容範囲となるように、第1及び第2の可変遅延器の遅延量を交互に増加させ、その増加処理が施される期間、その経路を第1または第2のスイッチで遮断する。【選択図】図1
摘要翻译：要解决的问题：即使在冗余系统中也能够大幅度延迟量的调整而不降低电信号。解决方案：第一分配器将电信号划分成两个路径，其中一个路径被延迟到第一变量延迟器和第二可变延迟器，第二和第三分配器分别将从第一和第二可变延迟器输出的电信号分成两个路径。延迟量差测量器测量由第二和第三分配器分配的相应电信号之间的延迟量差。第一和第二开关分别间隔由第二和第三分配器分配的其它电信号的传输路径，并且组合器分别输出通过第一开关和第二开关的电信号的组合。第一可变延迟器和第二可变延迟器的延迟量交替增加，使得由延迟量差测量器测量的延迟量差保持在允许范围内，并且在应用递增处理期间路径被第一或第二开关中断。

27. 发明专利

JP2014107612A Discrete optical path length adjustment device and discrete optical path length adjustment method 有权
标题翻译：离散光路长度调整装置和离散光路长度调整方法
公开(公告)号：JP2014107612A
公开(公告)日：2014-06-09
申请号：JP2012257339
申请日：2012-11-26
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： NANDO KAZUTAKA , INOUE MASAAKI , KATAYAMA KAZUNORI , MANABE TETSUYA , HIGASHI YUJI
IPC分类号： H04B10/25 , G02F1/313 , H04B10/032
摘要： PROBLEM TO BE SOLVED: To suppress accumulation of fixed delay even if the number of optical switches is increased.SOLUTION: As a function of 3×3 optical switches 161 to 16(M+1), in addition to a route toward the next optical switch after passing through a delay optical fiber for optical path length adjustment and a route toward the next optical switch without passing through the delay optical fiber, a route (short-circuit path) for direct output by N×1 optical switches 18 while skipping connection to subsequent optical switches can be selected. Thus, unnecessary fixed delay accumulation can be excluded.
摘要翻译：要解决的问题：即使增加光开关的数量，也可抑制固定延迟的累积。解决方案：除了3×3光开关161至16（M + 1）的功能之外，除了朝向下一个光学在通过用于光路长度调节的延迟光纤和不通过延迟光纤的下一个光开关的路径之间切换，用于在跳过连接时由N×1个光开关18直接输出的路径（短路路径）可以选择后续的光开关。因此，可以排除不必要的固定延迟累积。

28. 发明专利

JP2014096750A Variable delay device and variable delay setting method 有权
标题翻译：可变延迟装置和可变延迟设置方法
公开(公告)号：JP2014096750A
公开(公告)日：2014-05-22
申请号：JP2012248268
申请日：2012-11-12
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： MANABE TETSUYA , NANDO KAZUTAKA , INOUE MASAAKI , KATAYAMA KAZUNORI , HIGASHI YUJI
IPC分类号： H03K5/13
摘要： PROBLEM TO BE SOLVED: To set a great delay time with precision depending on minimum resolution of semiconductor variable delayers while minimizing the quantity of semiconductor variable delayers.SOLUTION: Input serial data is delayed by a specified time sequentially in cascade-coupled semiconductor variable delayers 101-10m, a clock signal is recovered in a recoverer 200, and serial data is output on the basis of the recovered clock signal. The serial data is converted to parallel data (202) on the basis of the recovered clock signal and stored in a ring memory 204. A controller 205 delays an output by a time from data writing to the ring memory 204 to reading therefrom. The parallel data read out from the ring memory 204 is converted to serial data to be output on the basis of the recovered clock signal. The delay times of the semiconductor variable delayers and the writing/reading timings of the ring memory 204 are controlled in accordance with a requested delay time.
摘要翻译：要解决的问题：根据半导体可变延迟器的最小分辨率设置精确的延迟时间，同时最小化半导体可变延迟器的数量。解决方案：输入串行数据在级联耦合半导体可变延迟器101中依次延迟指定的时间在恢复器200中恢复时钟信号，并且基于恢复的时钟信号输出串行数据。基于恢复的时钟信号将串行数据转换为并行数据（202）并存储在环形存储器204中。控制器205将输出延迟一段时间从数据写入到环形存储器204以从其读取。从环形存储器204读出的并行数据被转换成基于恢复的时钟信号输出的串行数据。根据请求的延迟时间来控制半导体可变延迟器的延迟时间和环形存储器204的写入/读取定时。

29. 发明专利

JP2013243496A Duplex device and duplex method of optical transmission line 有权
标题翻译：双重传输线双重装置和双重方法
公开(公告)号：JP2013243496A
公开(公告)日：2013-12-05
申请号：JP2012114941
申请日：2012-05-18
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： MANABE TETSUYA , HONDA NAGETSU , NANDO KAZUTAKA , HIGASHI YUJI
IPC分类号： H04B10/073 , H04B10/038 , H04J14/00 , H04J14/02 , H04L12/44
摘要： PROBLEM TO BE SOLVED: To obtain the uplink test signal light without entering it by means of a lower optical branch coupler.SOLUTION: A test signal is obtained by demultiplexing the uplink signal light by means of a lower optical branch coupler 201, and converting the wavelength of the uplink signal light thus obtained into the test signal wavelength. Since the optical path length difference can be determined from the uplink signal light and the test signal light multiplexed by an upper optical branch coupler 202, it is not required to enter the test signal light from the lower optical branch coupler, and a 2-input 1-output or 1-input 2-output optical branch coupler can be utilized as the lower optical branch coupler 201.
摘要翻译：要解决的问题：通过下部光分支耦合器获得上行测试信号光而不进入上行测试信号。解决方案：通过下部光分支耦合器201对上行链路信号光进行解复用获得测试信号，并将由此获得的上行链路信号光的波长变为测试信号波长。由于光路长度差可以从上行信号光和由上光分支耦合器202复用的测试信号光确定，所以不需要从下光分支耦合器输入测试信号光，而不需要输入2输入 1输出或1输入2输出光分路耦合器可以用作下光分路耦合器201。

30. 发明专利

JP2013126085A Optical transmission line duplexing device and method 有权
标题翻译：光传输线双工器件及方法
公开(公告)号：JP2013126085A
公开(公告)日：2013-06-24
申请号：JP2011273408
申请日：2011-12-14
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： MANABE TETSUYA , NANDO KAZUTAKA , OGUSHI KITARO , KAWANO TOMOHIRO , HONDA NAGETSU , HIROTA YOSHINOBU , HIGASHI YUJI
IPC分类号： H04B10/03 , H04B10/07 , H04J14/00 , H04J14/02
摘要： PROBLEM TO BE SOLVED: To simplify and downsize a composition and reduce a signal propagation time in a detour line.SOLUTION: Signal light having an uplink detour line, a downlink detour line and a test purpose detour line branched from an active optical fiber 102 is converted to an electric signal before being input to variable delay devices 30, 31 and 32 for delay processing, and the delayed electric signal is converted to signal light before being sent out to an active optical transmission line. And, while the delay amount of the test purpose variable delay device 32 is varied under control of a control device 60, determination of whether there is a difference in optical path length between the active optical fiber 102 and the test purpose detour line is made by using an optical path length difference detector 50. Then, delay amounts when a difference in optical path length does no longer exist are set for the uplink and downlink detour line variable delay devices 30 and 31, respectively.
摘要翻译：要解决的问题：简化和缩小组合并减小绕行线中的信号传播时间。解决方案：具有上行线绕线，下行线绕线和从有源光纤102分支的测试用途迂回线的信号光在被输入到可变延迟装置30,31和32之前被转换为电信号用于延迟并且延迟的电信号在被发送到有源光传输线之前被转换成信号光。并且，在控制装置60的控制下，在测试目的可变延迟装置32的延迟量变化的同时，有源光纤102与测试用途绕线之间的光程长度的差是否确定，由然后，分别对上行线路和下行线路可变延迟装置30,31分别设定光路长度差不再存在的延迟量。版权所有（C）2013，JPO＆INPIT

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