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16 条记录 (耗时 0.016 秒)

    OPTICAL MODULE
    2.
    发明公开
    OPTICAL MODULE 审中-公开

    公开(公告)号：EP3331110A1

    公开(公告)日：2018-06-06

    申请号：EP16830060.6

    申请日：2016-07-27

    申请人： Nippon Telegraph And Telephone Corporation

    发明人： KIKUCHI, Kiyofumi ,  FUKUDA, Hiroshi ,  SAIDA, Takashi ,  KAMEI, Shin ,  TSUZUKI, Ken

    IPC分类号： H01S5/022

    CPC分类号： H04B3/32 ,  H01P3/081 ,  H01R13/6466 ,  H01S5/022 ,  H05K1/0228

    摘要： The present invention provides an optical module that suppresses crosstalk between high-frequency transmission lines. The optical module of the present invention includes at least one set of: an optical port; an optical processing circuit optically connected to the optical port; an electro-optical transducer optically connected to the optical processing circuit; two or more high-frequency transmission lines connected to the electro-optical transducer; and electrical ports connected to the high-frequency transmission lines, and includes a conductive cover block which is provided above the high-frequency transmission lines so as to at least partly cover the high-frequency transmission lines and which is grounded.

    OPTICAL MODULATOR
    5.
    发明公开
    OPTICAL MODULATOR 审中-公开

    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.

    WAVEGUIDE TYPE OPTICAL DEVICE
    7.
    发明公开
    WAVEGUIDE TYPE OPTICAL DEVICE 有权
    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。

    OPTICAL COMPONENT
    10.
    发明公开
    OPTICAL COMPONENT 有权
    光学元件

    公开(公告)号：EP2700991A1

    公开(公告)日：2014-02-26

    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： G02B6/26 ,  G02B6/122 ,  G02F1/01

    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 ϕ 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.

    摘要翻译： 提供一种在使用环境中对温度变化稳定的光学部件，并且具有不同折射率的第一平面光波电路和第二平面光波电路在其端面上对接连接，使得分别形成多组光波导 在平面光波电路上彼此光耦合。 在光学部件（500）中，具有第一折射率n1的第一平面光波电路（501）和具有不同于第一折射率n1的第二折射率n2的第二平面光波电路（502）在端部 其表面垂直于光轴方向。 在第一和第二平面光波电路中的每一个上形成第一到第n光波导（其中n是大于或等于2的整数）。 第一平面光波回路和第二平面光波回路对准并接合，使得第一平面光波回路的第i光波导（其中，i为大于等于1且小于等于n的整数）的位置， 第二平面光波回路的第i个光波导的第一光波导在接合界面上匹配。 由第一平面光波回路的第i光波导与界面的法线形成的角度φi被配置为根据i的值在满足斯涅耳定律的范围内变化。