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1. 发明授权

EP2253976B1 WAVEGUIDE TYPE OPTICAL DEVICE 有权
标题翻译： DEVICE光纤类型
公开(公告)号：EP2253976B1
公开(公告)日：2015-10-07
申请号：EP09712704.7
申请日：2009-02-19
申请人： NTT Electronics Corporation , Nippon Telegraph and Telephone Corporation
发明人： OGAWA, Daisuke , SAIDA, Takashi , MORIYA, Yuji , NAGASHIMA, Shigeo , INOUE, Yasuyuki , KAMEI, Shin
IPC分类号： G02B6/12
CPC分类号： G02B6/12026 , G02B6/12011 , G02B6/12014 , G02B6/12023

2. 发明授权

EP2669722B1 WAVEGUIDE-TYPE POLARIZATION BEAM SPLITTER 有权
标题翻译：有纤维偏振分束器
公开(公告)号：EP2669722B1
公开(公告)日：2015-01-14
申请号：EP12739739.6
申请日：2012-01-25
申请人： Nippon Telegraph And Telephone Corporation
发明人： SAIDA, Takashi , NASU, Yusuke , MIZUNO, Takayuki , KASAHARA, Ryoichi
IPC分类号： G02B6/126 , G02B6/27 , G02B6/28 , G02B6/12
CPC分类号： G02B6/126 , G02B6/2793 , G02B6/2813 , G02B2006/12116 , G02B2006/1215

3. 发明公开

EP3333619A1 OPTICAL MODULATOR 有权
公开(公告)号：EP3333619A1
公开(公告)日：2018-06-13
申请号：EP16832526.4
申请日：2016-08-03
申请人： Nippon Telegraph And Telephone Corporation
发明人： TSUZUKI, Ken , SAIDA, Takashi , TAKEDA, Koutaro , HONDA, Kentaro
IPC分类号： G02F1/025 , G02F1/225
CPC分类号： G02F1/025 , G02F1/225 , G02F1/2255 , G02F2001/212 , G02F2203/50
摘要： An optical modulator is provided that suppresses the chirp due to the mask offset for example during the phase modulation and that provides a high waveform quality. An optical modulator is provided that includes: two RF electrodes for applying one pair of differential signal voltages; at least one fixed potential electrodes for applying a fixed potential; a first conductive semiconductor layer and a second conductive semiconductor layer abutted to the RF electrode or a fixed potential electrode; and a light modulation unit including two optical waveguides branched from one optical waveguide that are arranged along a pn junction unit functioning as a boundary between the first and second conductive semiconductor layers, wherein: the semiconductor layers and the electrode are provided so that the integration amounts of the phase changes caused by the offsets of the positions of the pn junction units in the two optical waveguides from a design value is equal between the two optical waveguides.

4. 发明公开

EP2996266A1 OPTICAL MODULATOR DRIVER CIRCUIT AND OPTICAL TRANSMITTER 审中-公开
标题翻译：驱动电路用于光学调制器和光发射器
公开(公告)号：EP2996266A1
公开(公告)日：2016-03-16
申请号：EP14794331.0
申请日：2014-05-09
申请人： Nippon Telegraph and Telephone Corporation
发明人： NAGATANI, Munehiko , NOSAKA, Hideyuki , ITOH, Toshihiro , MURATA, Koichi , FUKUYAMA, Hiroyuki , SAIDA, Takashi , KAMEI, Shin , YAMAZAKI, Hiroshi , KIKUCHI, Nobuhiro , KOIZUMI, Hiroshi , NOGAWA, Masafumi , KATSURAI, Hiroaki , UZAWA, Hiroyuki , KATAOKA, Tomoyoshi , FUJIWARA, Naoki , KAWAKAMI, Hiroto , HORIKOSHI, Kengo , BOUVIER, Yves , YONEYAMA, Mikio , AISAWA, Shigeki , SUZUKI, Masahiro
IPC分类号： H04B10/516 , H03F1/00 , H03F3/45 , H03F3/60 , H03G3/18
CPC分类号： H04B10/541 , H03F1/223 , H03F1/32 , H03F3/04 , H03F3/082 , H03F3/195 , H03F3/245 , H03F3/45085 , H03F3/45089 , H03F3/45183 , H03F3/45188 , H03F3/602 , H03F2200/18 , H03F2200/219 , H03F2200/255 , H03F2200/27 , H03F2200/336 , H03F2200/411 , H03F2200/72 , H03F2200/75 , H03F2203/45258 , H03F2203/45374 , H03F2203/45392 , H03F2203/45454 , H03F2203/45466 , H03F2203/45471 , H03F2203/45486 , H03F2203/45496 , H03F2203/45504 , H03F2203/45506 , H03F2203/45702 , H03G1/0023 , H03G1/0082 , H03G1/0088 , H03G3/00 , H03G3/001 , H03G3/3084 , H04B10/5561 , H04B10/588
摘要： An optical modulator driver circuit (1) includes an amplifier (50, Q10, Q11, R10 - R13), and a current amount adjustment circuit (51) capable of adjusting a current amount of the amplifier (50) in accordance with a desired operation mode. The current amount adjustment circuit (51) includes at least two current sources (IS10) that are individually ON/OFF-controllable in accordance with a binary control signal representing the desired operation mode.

5. 发明公开

EP2253976A1 WAVEGUIDE TYPE OPTICAL DEVICE 有权
标题翻译： OPTISCHE EINRICHTUNG DES WELLENLEITERTYPS
公开(公告)号：EP2253976A1
公开(公告)日：2010-11-24
申请号：EP09712704.7
申请日：2009-02-19
申请人： NTT Electronics Corporation , Nippon Telegraph and Telephone Corporation
发明人： OGAWA, Daisuke , SAIDA, Takashi , MORIYA, Yuji , NAGASHIMA, Shigeo , INOUE, Yasuyuki , KAMEI, Shin
IPC分类号： G02B6/12
CPC分类号： G02B6/12026 , G02B6/12011 , G02B6/12014 , G02B6/12023
摘要： An arrayed waveguide grating optical multiplexer/demultiplexer according to the present invention including an input channel waveguide, an input slab waveguide, an arrayed waveguide, a polarization dependence eliminating means, an output slab waveguide, a temperature compensating means, and an output channel waveguide is characterized in that the temperature compensating means compensates for the temperature dependence of the optical path lengths in the channel waveguides of the arrayed waveguide, and the polarization dependence eliminating means eliminates the polarization dependence of the optical path length due to the birefringence of the arrayed waveguide and the polarization dependence of the optical path length of the temperature compensating means.
摘要翻译：根据本发明的阵列波导光栅光复用器/解复用器包括输入通道波导，输入平板波导，阵列波导，偏振相关性消除装置，输出平板波导，温度补偿装置和输出通道波导其特征在于，温度补偿装置补偿阵列波导的通道波导中光路长度的温度依赖性，并且偏振相关性消除装置消除了由于阵列波导的双折射引起的光程长度的偏振相关性，以及温度补偿装置的光程长度的偏振度依赖性。

6. 发明公开

EP3313156A1 SOLDER JOINT STRUCTURE OF FLEXIBLE PRINTED CIRCUIT BOARD 有权
标题翻译：柔性印刷电路板焊接连接结构
公开(公告)号：EP3313156A1
公开(公告)日：2018-04-25
申请号：EP16811249.8
申请日：2016-06-17
申请人： Nippon Telegraph and Telephone Corporation
发明人： USUI, Mitsuo , KIKUCHI, Kiyofumi , TSUZUKI, Ken , FUKUDA, Hiroshi , ASAKAWA, Shuichiro , KAMEI, Shin , SOMA, Shunichi , SAIDA, Takashi
IPC分类号： H05K1/14 , H05K1/11 , H05K3/36
CPC分类号： H05K3/363 , H05K1/0269 , H05K1/11 , H05K1/111 , H05K1/117 , H05K1/14 , H05K1/147 , H05K1/189 , H05K3/3463 , H05K3/36 , H05K3/403 , H05K2201/09181 , H05K2201/09409 , H05K2201/10121
摘要： In a conventional soldering method, an FPC-side electrode pad and a package-side electrode pad are closely joined together with a solder layer, and the soldered state after a joining process has not been easily confirmed visually. Since a conduction inspection on wirings by measuring resistance values, for example, for an electric path including a joint portion needs to be made, quite a long time has been required for the inspection. The present invention provides a solder joint structure including a side face electrode which is formed on each of the side faces of the end parts of an FPC board and a package or PCB board that are to be soldered, extending vertically relative to the faces constituting each of electrode pads on the boards , and which introduces solder. On the side face electrodes of the board end parts, a part of solder that is formed continuously from the solder joint portion is visible and the state of the solder joint between the electrode pads on the two boards can be confirmed. The efficiency of solder joint tests can be improved by providing an electrode pad configuration which allows to form solder joint portions that are sufficiently visible from the side faces of the boards.
摘要翻译：在传统的焊接方法中，FPC侧电极焊盘和封装侧电极焊盘通过焊料层紧密接合在一起，并且接合工艺之后的焊接状态不容易在视觉上确认。由于需要通过测量电阻值来进行布线的导通检查，例如对于包括接头部分的电气路径，所以检查需要相当长的时间。本发明提供了一种钎焊接合结构，其包括形成在FPC板的端部的每个侧面上的侧面电极和待焊接的封装或PCB板，所述侧面电极相对于构成每个电路板上的电极焊盘，并引入焊料。在电路板端部的侧面电极上，从焊接部分连续形成的焊料的一部分是可见的，并且可以确认两个电路板上的电极焊盘之间的焊接状态。通过提供允许形成从板的侧面足够可见的焊点部分的电极焊盘配置，可以提高焊点测试的效率。

7. 发明授权

EP2700991B1 OPTICAL COMPONENT 有权
标题翻译：光学元件
公开(公告)号：EP2700991B1
公开(公告)日：2017-12-13
申请号：EP12774664.2
申请日：2012-04-18
申请人： Nippon Telegraph and Telephone Corporation , NTT Electronics Corporation
发明人： ISHII, Motohaya , SAIDA, Takashi , TERUI, Hiroshi , SHIBAZAKI, Tomoyo , KIKUCHI, Yuichi
IPC分类号： G02B6/122
CPC分类号： G02B6/12 , G02B6/122 , G02B6/327 , G02B2006/12038 , G02B2006/1204
摘要： An optical component is provided that is stable against temperature change in usage environment and that a first planar lightwave circuit and a second planar lightwave circuit, having different refractive indices, are butt jointed on the end surfaces thereof such that groups of multiple optical waveguides respectively formed on the planar lightwave circuits are optically coupled to each other. In an optical component (500), a first planar lightwave circuit (501) having a first refractive index n 1 and a second planar lightwave circuit (502) having a second refractive index n 2 different from the first refractive index n 1 are butt jointed on the end surfaces thereof perpendicular to an optical axis direction. First to n-th optical waveguides (where n is an integer greater than or equal to 2) are formed on each of the first and second planar lightwave circuits. The first and second planar lightwave circuits are aligned and jointed such that the position of an i-th optical waveguide (where i is an integer greater than or equal to 1 and less than or equal to n) of the first planar lightwave circuit and that of an i-th optical waveguide of the second planar lightwave circuit are matched on a joint interface. An angle Õ i formed by the i-th optical waveguide of the first planar lightwave circuit and a normal of the interface is configured to vary in accordance with a value of i within a range satisfying the Snell's law.

8. 发明授权

EP2180361B1 POLARIZATION-INDEPENDENT WAVEGUIDE-TYPE OPTICAL INTERFERENCE CIRCUIT 有权
标题翻译：偏振无关INTER FERRO仪表电路光纤式的
公开(公告)号：EP2180361B1
公开(公告)日：2014-10-08
申请号：EP07806072.0
申请日：2007-08-24
申请人： Nippon Telegraph and Telephone Corporation
发明人： HASHIZUME, Yasuaki , OGUMA, Manabu , SAIDA, Takashi , KOTOKU, Masaki , MIZUNO, Takayuki
IPC分类号： G02B6/12
CPC分类号： G02B6/12007 , G02B6/272 , G02B6/2766 , G02B6/29302 , G02B6/29352 , G02B2006/12038

9. 发明公开

EP2669722A1 WAVEGUIDE-TYPE POLARIZATION BEAM SPLITTER 有权
标题翻译：极地食品麻省理工学院
公开(公告)号：EP2669722A1
公开(公告)日：2013-12-04
申请号：EP12739739.6
申请日：2012-01-25
申请人： Nippon Telegraph And Telephone Corporation
发明人： SAIDA, Takashi , NASU, Yusuke , MIZUNO, Takayuki , KASAHARA, Ryoichi
IPC分类号： G02B6/126
CPC分类号： G02B6/126 , G02B6/2793 , G02B6/2813 , G02B2006/12116 , G02B2006/1215
摘要： Provided is a waveguide-type polarization beam splitter in which deterioration of a polarization extinction ratio due to temperature change and wavelength change is suppressed. The waveguide-type polarization beam splitter includes: an input optical waveguides (11); a first optical coupler (12) coupled to the input optical waveguides (11); a pair of optical waveguide arms (13a, 13b) coupled to outputs of the first optical coupler; and a second optical coupler (18) coupled to the pair of optical waveguide arms (13a, 13b). A groove (15) is formed to extend across the pair of optical waveguide arms (13a, 13b) and two quarter wave plates (16a, 16b) are provided in the groove (15) to extend respectively across the arms (13a, 13b). Polarization axes of the quarter wave plates (16a, 16b) are orthogonal to each other. The first optical coupler (12) which gives a phase difference of 0° or 180° between coupled or split light beams and the second optical coupler (18) which gives a phase difference of 90° or -90° between coupled or split light beams are used in combination.
摘要翻译：提供了抑制由于温度变化和波长变化引起的偏振消光比的劣化的波导型偏振分束器。波导型偏振分束器包括：输入光波导（11）; 耦合到所述输入光波导（11）的第一光耦合器（12）; 耦合到所述第一光耦合器的输出的一对光波导臂（13a，13b）; 以及耦合到所述一对光波导臂（13a，13b）的第二光耦合器（18）。形成一个沟槽（15），跨越一对光波导臂（13a，13b）延伸，并且两个四分之一波片（16a，16b）设置在槽（15）中，分别延伸穿过臂（13a，13b）。四分之一波片（16a，16b）的极化轴彼此正交。第一光耦合器（12）在耦合或分离光束之间给出0°或180°的相位差，并且在耦合或分束光束之间给出90°或-90°的相位差的第二光耦合器（18）被组合使用。

10. 发明公开

EP1837700A1 PLANAR LIGHTWAVE CIRCUIT TYPE VARIABLE OPTICAL ATTENUATOR 审中-公开
标题翻译：变量优化DÄMPFUNGSGLIEDDES PLANAREN LICHTWELLENLEITERTYPS
公开(公告)号：EP1837700A1
公开(公告)日：2007-09-26
申请号：EP06711657.4
申请日：2006-01-13
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： HASHIZUME, Yasuaki , INOUE, Yasuyuki , SAIDA, Takashi , SUGITA, Akio
IPC分类号： G02F1/01
CPC分类号： G02F1/225 , G02F2203/06 , G02F2203/48
摘要： A planar lightwave circuit type variable optical attenuator with a small polarization dependent loss is provided. By setting the waveguide birefringence (absolute value) in first and second optical coupler sections equal to or greater than 3.5×10 -4 , the polarization mode coupling is made equal to or less than -25 dB, and the effect of the polarization dependence caused by the polarization mode coupling at the cross port of the first and second optical couplers is suppressed. In addition to or independently of this, the arm waveguide length can be designed to be equal to an integer multiple of the optical beat length obtained by dividing a used optical wavelength by the waveguide birefringence.
摘要翻译：提供了具有小偏振相关损耗的平面光波回路型可变光衰减器。通过将第一和第二光耦合器部分中的波导双折射（绝对值）设置为等于或大于3.5×10 -4，使偏振模式耦合等于或小于-25dB，并且引起偏振相关性的影响通过在第一和第二光耦合器的交叉口处的偏振模式耦合被抑制。除了或独立于此，臂波导长度可以被设计为等于通过将所使用的光波长除以波导双折射而获得的光学拍子长度的整数倍。

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