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1. 发明专利

JP2012023436A Multi-channel osnr monitor 审中-公开
标题翻译：多通道OSNR监视器
公开(公告)号：JP2012023436A
公开(公告)日：2012-02-02
申请号：JP2010157721
申请日：2010-07-12
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： INOUE YASUYUKI , TAKAHASHI HIROSHI , MIZUNO TAKAYUKI , GO TAKASHI
IPC分类号： H01L31/0232 , H04B10/07
摘要： PROBLEM TO BE SOLVED: To provide a multi-channel OSNR monitor which can be obtained with a more compact configuration as comparing with a conventional multi-channel OSNR monitor.SOLUTION: The multi-channel OSNR monitor comprises: an AWG 15 having two inputs and 2N outputs; a tunable coupler 23 constituted of two 3 dB couplers 21A, 21B having two inputs and two outputs provided for every two output waveguides of the AWG and connected with each other, a first phase shifter 22A arranged in the input waveguide of one 3 dB coupler 21A, and a second phase shifter 22B arranged in one waveguide to which two 3 dB couplers are connected; photodiodes 24A, 24B arranged, respectively, at two output ports 12-1a, 12-1b of each tunable coupler; a polarization beam splitter 13 connected with two input waveguides of the AWG; and a polarization converter 14 arranged in one waveguide to which the polarization beam splitter and the AWG are connected.
摘要翻译：要解决的问题：与常规的多通道OSNR监视器相比，提供可以以更紧凑的配置获得的多通道OSNR监视器。解决方案：多通道OSNR监视器包括：具有两个输入和2N个输出的AWG 15; 由具有两个输入和两个输出的两个3dB耦合器21A，21B构成的可调谐耦合器23，该输入和两个输出设置在AWG的每两个输出波导上并彼此连接，第一移相器22A布置在一个3dB耦合器21A的输入波导中以及布置在两个3dB耦合器连接的一个波导中的第二移相器22B; 分别布置在每个可调谐耦合器的两个输出端口12-1a，12-1b处的光电二极管24A，24B; 与AWG的两个输入波导连接的偏振分束器13; 以及布置在偏振分束器和AWG所连接的一个波导中的偏振转换器14。版权所有（C）2012，JPO＆INPIT

2. 发明专利

JP2011257557A Optical switch 有权
标题翻译：光开关
公开(公告)号：JP2011257557A
公开(公告)日：2011-12-22
申请号：JP2010131394
申请日：2010-06-08
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： WATANABE TOSHIO , MIZUNO TAKAYUKI , GO TAKASHI , HASHIZUME YASUAKI , TAKAHASHI HIROSHI
IPC分类号： G02F1/313
摘要： PROBLEM TO BE SOLVED: To provide an optical switch with a reduced number of connection stages of unit optical switch elements while suppressing the number of optical switch elements to be driven at the same time.SOLUTION: In the optical switch, sub-optical switch element groups (541, 542, 543, 544, 545, 546) constituted by connecting (N-i) pieces of 1-input/2-output unit optical switch elements are connected in columns respectively to the other output ports of i-th (1≤i≤N-1) unit optical switch element excluding N-1-th out of a main optical element group (521) constituted by connecting N pieces (N≥3) of 1-input/2-output unit optical switch elements in columns. One of two output ports of the 1-input/2-output unit optical switch element constituting the sub-optical switch element group and one of two output ports of N-1-th and Nth unit optical switch elements (511-7, 511-8) out of the main optical switch element group are used as the external output port.
摘要翻译：要解决的问题：为了同时抑制同时驱动的光开关元件的数量，提供具有减少数量的单元光开关元件的连接级的光开关。解决方案：在光开关中，连接（Ni）1输入/ 2输出单元光开关元件构成的子光开关元件组（541,542,543,544,545,546）被连接分别列出除了通过连接N个（N≤3）构成的主要光学元件组（521）中除了第N-1个之外的第i（1≥i≥N-1）个单元光学开关元件的其他输出端口）1列输入/ 2输出单元光开关元件。构成子光开关元件组的1输入/ 2输出单元光开关元件的两个输出端口之一和N-1和N个单元光开关元件（511-7,511）的两个输出端口中的一个 -8）出来的主光学开关元件组用作外部输出端口。版权所有（C）2012，JPO＆INPIT

3. 发明专利

JP2011221258A Optical modulator 有权
标题翻译：光学调制器
公开(公告)号：JP2011221258A
公开(公告)日：2011-11-04
申请号：JP2010089872
申请日：2010-04-08
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： YAMAZAKI YASUSHI , GO TAKASHI , TAKAHASHI HIROSHI
IPC分类号： G02F1/01
摘要： PROBLEM TO BE SOLVED: To provide a multi-valued optical modulator in which loss of light is low theoretically.SOLUTION: The optical modulator comprises: first optical modulation means for modulating input light from a main input port, and outputting simultaneously first and second light signals, which have the same constellation figures and different data mapping each other, from different ports; second optical modulation means for further modulating the first light signal and outputting a third light signal; and optical coupling means for coupling the second and third light signals and outputting the signals to a main output port.
摘要翻译：要解决的问题：提供理论上光损失低的多值光调制器。光调制器包括：第一光调制装置，用于调制来自主输入端口的输入光，并且同时从不同端口输出具有相同星座图和相互映射的不同数据的第一和第二光信号; 第二光调制装置，用于进一步调制第一光信号并输出第三光信号; 以及用于耦合第二和第三光信号并将信号输出到主输出端口的光耦合装置。版权所有（C）2012，JPO＆INPIT

4. 发明专利

JP2011069966A Optical connecting component and method of optical connecting 有权
标题翻译：光学连接组件和光连接方法
公开(公告)号：JP2011069966A
公开(公告)日：2011-04-07
申请号：JP2009220601
申请日：2009-09-25
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： DOI YOSHIYUKI , GO TAKASHI , TSUZUKI TAKESHI , YAMAZAKI YASUSHI , MINO SHINJI
IPC分类号： G02B6/26
摘要： PROBLEM TO BE SOLVED: To provide an optical connecting component in which stress given to optical fibers is relaxed, insertion loss, break of the optical fibers and polarized wave extinction ratio are improved and an array composing is easy. SOLUTION: The optical connecting component separates an inner space from outside with a housing (10), a lid (12) and a transmission window (600) provided on the housing. The transmission window is composed so that the optical fiber (200) or a planar light wave circuit (300) may be connected to the inner space side, a second optical fiber (202) or a second planar light wave circuit may be connected to the out part side, the light which propagates in the optical fiber or the planar light wave circuit may be connected to the second optical fiber or the second planar light wave circuit via the transmission window, or the light which propagates in the second optical fiber or the second planar light wave circuit may be connected to the optical fiber or the planar light wave circuit via the transmission window. The thickness of the transmission window is such that the coupling loss of light is within 0.5 dB, and the thermal expansion/contraction coefficient of the transmission window is smaller than the thermal expansion/contraction rate of the housing. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了提供光纤的应力松弛的光连接部件，插入损耗，光纤的断裂和偏振波的消光比得以提高，阵列的组成容易。解决方案：光学连接部件通过设置在壳体上的壳体（10），盖（12）和透射窗（600）将内部空间与外部分离。透射窗构成为使得光纤（200）或平面光波形电路（300）可以连接到内部空间侧，第二光纤（202）或第二平面光波电路可以连接到在光纤或平面光波电路中传播的光可以经由透射窗口或第二光纤或第二平面光波电路在第二光纤或第二光纤中传播的光连接到第二光纤或第二平面光波电路第二平面光波电路可以经由透射窗口连接到光纤或平面光波电路。透光窗的厚度使得光的耦合损耗在0.5dB以内，并且透射窗的热膨胀/收缩系数小于壳体的热膨胀/收缩率。版权所有（C）2011，JPO＆INPIT

5. 发明专利

JP2010250125A Optical modulator 有权
标题翻译：光学调制器
公开(公告)号：JP2010250125A
公开(公告)日：2010-11-04
申请号：JP2009100287
申请日：2009-04-16
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： YAMAZAKI YASUSHI , GO TAKASHI , YAMADA TAKASHI
IPC分类号： G02F1/01 , G02B6/12
摘要： PROBLEM TO BE SOLVED: To reduce optical loss by reducing the excessive loss in principle accompanying vector synthesis, in an optical modulator which drives an optical modulation means with a binary electrical signal and generates a multivalued optical signal with a vector addition of output optical signals of the optical modulation means. SOLUTION: Two parallel QPSK modulators are connected to asymmetrical couplers on the input side and on the output side. The asymmetrical coupler on the input side is equipped with two output ports; and when light is input in a forward direction from a main input port, the light is branched to arms 1 and 2 with a light intensity branching ratio of 2:1. The asymmetrical coupler on the output side is equipped with two input ports, and when light is input in a backward direction from a main output port, the light is branched to the arms 1 and 2, with a light intensity branching ratio of 2:1 (67%: 33%). A phase difference θ of output optical signals of the respective QPSK modulators vector added to the asymmetrical coupler on the output side via the respective arms is set to be 0. According to the configuration, a 16QAM signal is generated by combining and vector-adding output QPSK signals from the respective QPSK modulators with an electric field amplitude ratio of 2:1. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：通过减少与矢量合成相关的原理的过度损耗来减少光学损耗，在用二进制电信号驱动光学调制装置的光学调制器中，并产生具有向量相加输出的多值光信号光调制装置的光信号。解决方案：两个并行QPSK调制器连接到输入侧和输出侧的非对称耦合器。输入侧的非对称耦合器配有两个输出端口; 并且当从主输入端口向前方输入光时，光以2:1的光强分支比分支到臂1和2。输出侧的非对称耦合器配有两个输入端口，当从主输出端口向后方向输入光时，光分支到臂1和2，光强分支比为2：1 （67％：33％）。通过各个臂将输出侧的不对称耦合器的各个QPSK调制器矢量的输出光信号的相位差θ设定为0.根据该结构，通过组合和矢量相加输出来生成16QAM信号来自各个QPSK调制器的QPSK信号的电场振幅比为2:1。版权所有（C）2011，JPO＆INPIT

6. 发明专利

JP2010117566A Optical wavelength multiplex signal monitoring apparatus and method 审中-公开
标题翻译：光波长多信号监测装置及方法
公开(公告)号：JP2010117566A
公开(公告)日：2010-05-27
申请号：JP2008290916
申请日：2008-11-13
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： KAMEI ARATA , OYAMA TAKAHARU , MIZUNO TAKAYUKI , GO TAKASHI
IPC分类号： G02B6/12 , G02F1/01
摘要： PROBLEM TO BE SOLVED: To provide an optical wavelength multiplex signal monitoring apparatus and a method, in which not only the intensity of signal light but also the wavelength are monitored. SOLUTION: The optical wavelength multiplex signal monitoring apparatus with an array waveguide diffraction grating (AWG) includes, between the input waveguide of AWG and the slab waveguide of input side: an optical splitter; two arm waveguides; an optical mode synthesis coupler; a tapered waveguide; and a heater which adjusts the phase difference between two arm waveguides. The optical mode synthesis coupler couples basic mode light inputted from one of the arm waveguides with a primary mode and couples the basic mode light inputted from the other arm waveguide with the basic mode. The tapered waveguide is so composed to excite secondary mode light. Electric power is supplied to the heater, the wavelength dependency of the transmissivity of the AWG is varied to a plurality of states and the intensity of signal light is measured. From the intensity of the signal light measured at the plurality of states, not only the intensity of signal light but also the wavelength of each channel is calculated. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：解决的问题：提供一种光波长多路复用信号监视装置和方法，其中不仅监视信号光的强度而且监视波长。解决方案：具有阵列波导衍射光栅（AWG）的光波长多路复用信号监测装置包括在AWG的输入波导与输入侧的平板波导之间：光分路器; 两臂波导; 光模合成耦合器; 锥形波导; 以及调节两个臂波导之间的相位差的加热器。光模式合成耦合器将从一个臂波导输入的基本模式光与主模耦合，并将从另一个臂波导输入的基本模式光与基本模式耦合。锥形波导如此组合以激发次模光。向加热器提供电力，AWG的透射率的波长依赖性变化到多个状态，并且测量信号光的强度。根据在多个状态下测量的信号光的强度，不仅计算信号光的强度，而且还计算每个通道的波长。版权所有（C）2010，JPO＆INPIT

7. 发明专利

JP2009145603A Optical circuit and its adjusting method 有权
标题翻译：光电路及其调整方法
公开(公告)号：JP2009145603A
公开(公告)日：2009-07-02
申请号：JP2007322538
申请日：2007-12-13
申请人： Nippon Telegr & Teleph Corp , Ntt Electornics Corp , Nttエレクトロニクス株式会社 , 日本電信電話株式会社
发明人： KAMITOKU MASAKI , KITO TSUTOMU , KAMEI ARATA , GO TAKASHI , SATO TERUAKI , JINNAI HIROMITSU
IPC分类号： G02B6/122 , G02B6/12
摘要： PROBLEM TO BE SOLVED: To adjust an optical characteristic (refractive index) in a plurality of places in an optical circuit. SOLUTION: According to one embodiment of this invention, a refractive index of a waveguide can be adjusted in a plurality of places in an optical circuit. First, the waveguide is irradiated with ultraviolet rays at a first place (step 302), and an optical circuit is heat-treated at a first temperature (step 304). Next, the waveguide is irradiated with ultraviolet rays at a second place (step 306), and the optical circuit is heat-treated at a second temperature lower than the first (step 308). Thus, the ultraviolet irradiation and the heat treatment are performed at respective places of the optical circuit, wherein the heating temperature of the heat treatment is successively lowered, so that the characteristics in the preceding trimmed places are not affected by the succeeding heat treatment. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：调整光电路中的多个位置的光学特性（折射率）。解决方案：根据本发明的一个实施例，可以在光电路中的多个位置调节波导的折射率。首先，首先用紫外线照射波导（步骤302），在第一温度对光电路进行热处理（步骤304）。接下来，在第二位置用紫外线照射波导（步骤306），并且在低于第一温度的第二温度下对光电路进行热处理（步骤308）。因此，在光路的各处进行紫外线照射和热处理，其中热处理的加热温度连续降低，使得先前修剪的位置的特性不受后续热处理的影响。版权所有（C）2009，JPO＆INPIT

8. 发明专利

JP2007148042A Wavelength selective optical switch, optical multiplexer, optical demultiplexer, and wavelength selective optical switch module 有权
标题翻译：波长选择光开关，光学多路复用器，光学解复用器和波长选择光开关模块
公开(公告)号：JP2007148042A
公开(公告)日：2007-06-14
申请号：JP2005342912
申请日：2005-11-28
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： GO TAKASHI , KANEKO AKEMASA , KAMEI ARATA , MIZUNO TAKAYUKI
IPC分类号： G02F1/313 , G02B6/12 , G02F1/01
CPC分类号： H04Q2011/0016
摘要： PROBLEM TO BE SOLVED: To provide a wavelength selective optical switch which eliminates the need to install a new multiplexer or demultiplexer and is capable of input and output of all individual wavelength channels. SOLUTION: The wavelength selective optical switch comprises M (≥2) demultiplexers 83 connected to M wavelength multiplex input ports, L (≥1) groups of individual wavelength input ports, optical switch elements 82 by wavelengths which select and output demultiplexing output light from a wavelength demultiplexer 83 and input light from an individual wavelength input port, and a multiplexer 81 which multiplexes output light from optical switch elements 82 and outputs the resulting light to an output port. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种波长选择性光开关，其不需要安装新的多路复用器或解复用器，并且能够输入和输出所有单独的波长信道。波长选择光开关包括连接到M个波长多路复用输入端口的M（≥2）个解复用器83，各个波长输入端口的L（≥1）个组，由选择和输出解复用输出的波长的光开关元件82 来自波长解复用器83的光和来自各个波长输入端口的输入光;以及复用器81，其多路复用来自光开关元件82的输出光，并将所得光输出到输出端口。版权所有（C）2007，JPO＆INPIT

9. 发明专利

JP2007067759A Optical branching and inserting switch 有权
标题翻译：光学分支和插入开关
公开(公告)号：JP2007067759A
公开(公告)日：2007-03-15
申请号：JP2005250484
申请日：2005-08-31
申请人： Nippon Telegr & Teleph Corp , Ntt Electornics Corp , Nttエレクトロニクス株式会社 , 日本電信電話株式会社
发明人： GO TAKASHI , TAKAHASHI TETSUO , HASEGAWA YUTAKA , TAKACHIO NOBORU
IPC分类号： H04B10/07 , H04B10/079 , H04B10/27 , H04B10/291 , H04J14/00 , H04J14/02
摘要： PROBLEM TO BE SOLVED: To provide an optical branching and inserting switch, wherein the scale of a monitor circuit for measuring an optical power is small. SOLUTION: A control circuit 225 stores drive currents I 222 , I 223 of variable optical attenuators 222, 223 and an insertion loss from a through port (ThrIn) to an output port (Out) and from an add port (Add) to the output port by each wavelength, and the control circuit calculates the optical power of a signal light in the through port, the optical power of a signal light in the add port, and the optical power of a signal light with each wavelength at an output of an optical multiplexer 203 on the basis of the optical power measured by a photodetector 227 and the drive currents and the insertion loss stored in the control circuit itself. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种光分路和插入开关，其中用于测量光功率的监视电路的规模小。解决方案：控制电路225存储可变光衰减器222,223的驱动电流I 222，I 223 和从通孔（ThrIn）到插入损耗的插入损耗输出端口（Out）和从每个波长的输出端口添加端口（Add），并且控制电路计算通孔中的信号光的光功率，加法端口中的信号光的光功率基于由光电检测器227测量的光功率和存储在控制电路本身中的驱动电流和插入损耗，在光复用器203的输出处的每个波长的信号光的光功率。版权所有（C）2007，JPO＆INPIT

10. 发明专利

JP2005055382A Polarization dispersion measuring device 有权
标题翻译：极化分布测量装置
公开(公告)号：JP2005055382A
公开(公告)日：2005-03-03
申请号：JP2003288577
申请日：2003-08-07
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： TAKAHASHI TETSUO , MORI KUNIHIKO , GO TAKASHI , NOGUCHI KAZUHIRO , KOGA MASABUMI
IPC分类号： G01M11/02
摘要： PROBLEM TO BE SOLVED: To measure the polarization dispersion of a subject with excellent precision by using the Jones matrix analysis method.
SOLUTION: The polarization dispersion measurement device comprises: a light frequency com generation part for generating the light frequency com composed of ≥n light frequency components with light frequency interval f; a polarization wave controller for controlling the state of the polarization and inputting the polarization into the subject; a demultiplexor for demultiplexing n light frequency components from the light frequency com transmitted through the subject; n polarimeters for measuring the polarization state of each frequency component demultiplexed by the demultiplexor; a measurement device controller for setting independent 3 polarization state on the Poincare sphere to the polarization controller; an operation part for calculating the polarization dispersion value of the subject by the operation of the Jones matrix of the subject from the relation between the input polarization state set by the polarization controller by the measurement device control part, and polarization state of each light frequency component measured by each polarimeter.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：通过使用琼斯矩阵分析方法来测量具有高精度的被摄体的偏振色散。解决方案：偏振色散测量装置包括：用于产生由光频率间隔f的≥n个光频分量组成的光频率com的光频com生成部分; 偏振波控制器，用于控制偏振状态并将偏振输入到被摄体中; 解复用器，用于从通过对象传输的光频率com中解复用n个光频率分量; n个偏振器，用于测量由解复用器解复用的每个频率分量的偏振状态; 用于将庞加莱球上的独立3极化状态设置到偏振控制器的测量装置控制器; 通过由偏振控制器由测量装置控制部分设定的输入偏振状态与每个光频率分量的极化状态之间的关系，通过对象的琼斯矩阵的运算来计算被摄体的偏振色散值的操作部分由每个偏振仪测量。版权所有（C）2005，JPO＆NCIPI

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