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公开(公告)号：EP4224248A1
公开(公告)日：2023-08-09
申请号：EP21875655.9
申请日：2021-09-29
发明人： KATAOKA Toshio , MIYAZAKI Norikazu
IPC分类号： G02F1/03
摘要： It is possible to provide an optical modulator in which a transmission loss from a driver circuit element to a modulation substrate is reduced. An optical modulator includes a modulation substrate (1) that includes an optical waveguide (200) and a modulation electrode (10) for modulating a light wave propagating through the optical waveguide, a driver circuit element (2) that generates a modulation signal to be applied to the modulation electrode (10), and a case (3) that accommodates the modulation substrate (1) and the driver circuit element (2), in which an output terminal (20') that outputs the modulation signal is provided on an upper surface side of the driver circuit element (2), and a wiring substrate (4) including a wiring that electrically connects the output terminal (20') and the modulation electrode (10) is disposed above the driver circuit element (2) and the modulation substrate (1) to straddle both the driver circuit element (2) and the modulation substrate (1) .
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公开(公告)号：EP2680061A1
公开(公告)日：2014-01-01
申请号：EP12749790.7
申请日：2012-02-22
发明人： KATOU Kei , KANNO Shinsuke , SHIMIZU Ryo , MIYAZAKI Norikazu , ICHIMEI Hideki
CPC分类号： G02F1/011 , G02B6/2935 , G02B6/29352 , G02B6/30 , G02B6/4214 , G02B6/4225 , G02F1/0123 , G02F1/0311 , G02F1/225 , G02F2001/212
摘要： An optical modulator is provided which can compensate for a bias shift between an output light and a monitoring light of the optical modulator and which has a configuration capable of being reduced in size with a simple structure. The optical modulator comprises a substrate that has an electro-optical effect, an optical waveguide that includes a Mach-Zehnder type optical waveguide formed in the substrate, a modulation electrode that modulates light waves propagating in the optical waveguide, an optical fiber that guides an output light from the optical waveguide, light collecting means for collecting two radiated lights from the Mach-Zehnder type optical waveguide toward a single optical receiving element, and light intensity ratio adjusting means for adjusting a light intensity ratio of the two radiated lights received by the optical receiving element.
摘要翻译： 提供一种光调制器，其能够补偿光调制器的输出光和监视光之间的偏移移位，并且具有能够以简单结构减小尺寸的配置。 光调制器包括具有电光效应的基板，包括形成在基板中的马赫 - 曾德尔型光波导的光波导，调制在光波导中传播的光波的调制电极，引导 来自光波导的输出光，用于将来自Mach-Zehnder型光波导的两个发射光聚集到单个光接收元件的光收集装置以及用于调节由所述两个发射光接收的两个发射光的光强比的光强比调节装置 光接收元件。
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公开(公告)号：EP4296764A1
公开(公告)日：2023-12-27
申请号：EP21959441.3
申请日：2021-09-30
发明人： KATAOKA Toshio , MIYAZAKI Norikazu
IPC分类号： G02F1/03
摘要： The purpose of the present invention is to provide an optical modulator in which propagation loss related to transmission of a high-frequency signal is reduced. An optical modulator, in which an electro-optical conversion element E/OC and a driver circuit DRV for driving the electro-optical conversion element are housed in the same case CA, includes: a multiplexer MUX that converts an input modulation signal, which is input from an outside of the case, into an output modulation signal having a higher frequency than the input modulation signal, and supplies the output modulation signal to the driver circuit, in which the multiplexer is housed in the case CA.
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公开(公告)号：EP2378298A1
公开(公告)日：2011-10-19
申请号：EP09829151.1
申请日：2009-11-27
发明人： MIYAZAKI Norikazu , SAKAI Takeshi
IPC分类号： G01R29/08
CPC分类号： G01R29/0885 , G01R29/0871 , G01R33/032
摘要： The electric field measuring device measures an electric field intensity of an electromagnetic wave generated from equipment under test 8 in an area for detecting an electromagnetic wave. An antenna 1 and an optical intensity modulator having a Mach-Zehnder type optical waveguide are inside the area and an output signal of the antenna is supplied to a modulation electrode of the optical intensity modulator. A light source unit, a light receiving unit, and a DC bias control unit controlling a DC bias voltage supplied to the optical intensity modulator are outside the area. An optical wave is guided to the optical intensity modulator from the light source unit, and is guided to the light receiving unit from the optical intensity modulator via an optical fiber 4. The DC bias voltage is supplied to the optical intensity modulator from the DC bias control unit via a power supply line 4.
摘要翻译： 电场测量装置测量在检测电磁波的区域中由被测设备8产生的电磁波的电场强度。 天线1和具有马赫 - 曾德尔型光波导的光强度调制器在该区域的内部，天线的输出信号被提供给光强度调制器的调制电极。 光源单元，光接收单元和控制提供给光强度调制器的DC偏置电压的DC偏置控制单元在该区域之外。 光波从光源单元引导到光强度调制器，并通过光纤4从光强度调制器引导到光接收单元。直流偏置电压从直流偏压提供给光强度调制器 控制单元经由电源线4。
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公开(公告)号：EP2680061B1
公开(公告)日：2016-06-22
申请号：EP12749790.7
申请日：2012-02-22
发明人： KATOU Kei , KANNO Shinsuke , SHIMIZU Ryo , MIYAZAKI Norikazu , ICHIMEI Hideki
CPC分类号： G02F1/011 , G02B6/2935 , G02B6/29352 , G02B6/30 , G02B6/4214 , G02B6/4225 , G02F1/0123 , G02F1/0311 , G02F1/225 , G02F2001/212
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公开(公告)号：EP2624029A1
公开(公告)日：2013-08-07
申请号：EP11829247.3
申请日：2011-09-29
发明人： MIYAZAKI Norikazu , KATOU Kei
摘要： An optical waveguide device is provided which can efficiently guide undesired light to the outside of a substrate or the outside of the overall optical waveguides even when optical waveguides are integrated. In the optical waveguide device, an optical waveguide is formed on a substrate, the optical waveguide includes a main waveguide in which signal light propagates and an undesired-light waveguide for removing undesired light from the main waveguide, and the undesired-light waveguide is separated by the main waveguide interposed therebetween at an intersection in which the undesired-light waveguide and the main waveguide intersect each other.
摘要翻译： 提供了一种光波导器件，其即使在光波导集成时也可以有效地将不期望的光引导到基板的外部或整个光波导的外部。 在光波导装置中，光波导形成在基板上，光波导包括信号光传播的主波导和用于从主波导除去不需要的光的不需要的光波导，并且不需要的光波导被分离 通过主波导插入在不需要的光波导和主波导相交的交叉点处。
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公开(公告)号：EP2533434A1
公开(公告)日：2012-12-12
申请号：EP10844621.2
申请日：2010-02-01
发明人： MURE Masahito , HIGUMA Kaoru , KATAOKA Toshio , MIYAZAKI Norikazu , MIYACHI Masahide , OIKAWA Youichi , SHIGA Noriyasu , NAGAEDA Hiroshi
IPC分类号： H04B10/04 , H04B10/06 , H04B10/14 , H04B10/142 , H04B10/152 , H04B10/26 , H04B10/28
CPC分类号： H04B10/677
摘要： An optical receiver includes interference means 2 for branching the optical signal modulated in a DQPSK manner into two light beams, delaying at least one branched light beam so that two branched light beams have a predetermined phase difference, rotating the polarization plane of at least one branched light beam so that the polarization planes of the two branched light beams are orthogonal to each other, and coupling the two branched light beams, light separation adjusting means 3 to 5 for separating the output light beam from the interference means and adjusting the polarization planes of the separated light beams, and detection means 6 and 6' for detecting light intensities of the separated light beams output from the light separation adjusting means, wherein an I-component signal and a Q-component signal are generated on the basis of detection signals from the detection means.
摘要翻译： 光接收机包括：干扰装置2，用于将以DQPSK方式调制的光信号分支成两个光束，延迟至少一个分支光束，使得两个分支光束具有预定的相位差，旋转至少一个分支的偏振面 光束使得两个分支光束的偏振平面彼此正交，并且耦合两个分支光束，光分离调节装置3至5，用于将输出光束与干涉装置分离并调节偏振面 分离的光束，以及用于检测从光分离调节装置输出的分离的光束的光强度的检测装置6和6'，其中产生I分量信号和Q分量信号， 检测装置。
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