公开(公告)号：US07822297B2

公开(公告)日：2010-10-26

申请号：US12084494

申请日：2006-10-31

申请人： Ryo Shimizu ,  Takahisa Fujita ,  Toru Sugamata

发明人： Ryo Shimizu ,  Takahisa Fujita ,  Toru Sugamata

IPC分类号： G02F1/01 ,  H04B10/04

CPC分类号： G02F1/0123 ,  G02F1/0305 ,  G02F1/0356

摘要： It is an object of the invention to provide an optical modulator in which a connection substrate or a terminal substrate is disposed outside an optical modulation element and which can maintain at a proper voltage amplitude value a modulation signal applied to an optical modulation element. An optical modulator includes: a substrate having electro-optic effect; an optical waveguide formed on the substrate; an optical modulation element 1 having a modulation electrode (which includes a signal electrode 2) for modulating light passing through the optical waveguide; and a connection substrate 20 disposed outside the substrate to supply a modulation signal for driving the optical modulation element to the optical modulation element. In the optical modulator, a signal line for propagating the modulation signal is formed on the connection substrate, and a modulation signal monitoring output line 25 for monitoring the voltage amplitude of the modulation signal is provided right in front of an end of the signal line for supplying the modulation signal from the signal line to the optical modulation element.

摘要翻译： 本发明的目的是提供一种光学调制器，其中连接衬底或端子衬底设置在光学调制元件外部，并且可以将施加到光学调制元件的调制信号保持在适当的电压振幅值。 光调制器包括：具有电光效应的衬底; 形成在基板上的光波导; 具有用于调制通过光波导的光的调制电极（包括信号电极2）的光调制元件1; 以及设置在基板外部的连接基板20，以向光调制元件提供用于驱动光调制元件的调制信号。 在光调制器中，在连接基板上形成有用于传播调制信号的信号线，并且用于监视调制信号的电压振幅的调制信号监视输出线25位于信号线的端部的正前方， 将信号线的调制信号提供给光调制元件。

公开(公告)号：US20100027934A1

公开(公告)日：2010-02-04

申请号：US12311395

申请日：2007-09-27

申请人： Ryo Shimizu ,  Takahisa Fujita ,  Toru Sugamata

发明人： Ryo Shimizu ,  Takahisa Fujita ,  Toru Sugamata

IPC分类号： G02F1/035 ,  G02B6/12

CPC分类号： G02F1/0356 ,  G02F1/0327 ,  G02F2001/212 ,  G02F2201/127 ,  G02F2202/20

摘要： An object of the invention is to provide a traveling-wave-type optical modulator capable of adjusting the frequency characteristics of an electric/optical conversion response over a wide frequency band, preventing the occurrence of jitter, and improving optical transmission characteristics.A traveling-wave-type optical modulator 20 includes: a substrate that has an electro-optical effect; an optical waveguide that is formed on the substrate; a modulating electrode that controls the modulation of a light wave traveling through the optical waveguide and includes a signal electrode portion 21 and a ground electrode portion; an input interface 22 that is connected to an input side of the signal electrode portion; a terminator 23 that is connected to the end of the signal electrode portion; and an adjustment filter 31 that is provided between the input interface and the signal electrode portion and adjusts frequency characteristics.It is preferable that the adjustment filter 31 be a passive filter.

摘要翻译： 本发明的目的是提供一种能够调整宽频带上的电/光转换响应的频率特性的行波型光调制器，防止发生抖动，提高光传输特性。 行波型光调制器20包括：具有电光效应的基板; 形成在基板上的光波导; 控制通过光波导传播的光波的调制的调制电极，包括信号电极部21和接地电极部; 连接到信号电极部分的输入侧的输入接口22; 连接到信号电极部分的端部的终端器23; 以及设置在输入接口和信号电极部分之间并调节频率特性的调节滤波器31。 调整滤波器31最好是无源滤波器。

公开(公告)号：US20090290828A1

公开(公告)日：2009-11-26

申请号：US12085115

申请日：2006-11-13

申请人： Ryo Shimizu ,  Takahisa Fujita ,  Toru Sugamata

发明人： Ryo Shimizu ,  Takahisa Fujita ,  Toru Sugamata

IPC分类号： G02F1/01

CPC分类号： G02F1/0327 ,  G02F2202/20

摘要： An optical modulator is provided which suppresses a radiation mode of a microwave generated in a connection substrate or a termination substrate from entering a signal electrode of the optical modulator and suppresses modulation properties from being degraded.The optical modulator includes an optical modulation element (1) having a substrate with an electro-optic effect, an optical waveguide formed on the substrate, and a modulating electrode (or a signal electrode (2)) for modulating light passing through the optical waveguide; and a connection substrate (4), arranged outside the substrate, for supplying the optical modulation element with a microwave signal operating the optical modulation element. A signal input terminal (22) and a signal output terminal (23) are formed on the connection substrate (20). A recombination suppression unit that suppresses a radiation mode (24) of the microwave signal input to the signal input terminal (22) from being recombined with the signal output terminal (23) is provided on the connection substrate.

摘要翻译： 提供一种光调制器，其抑制在连接基板或终端基板中产生的微波的辐射模式进入光调制器的信号电极，并抑制调制特性降低。 光调制器包括具有电光效应的基板的光调制元件（1），形成在基板上的光波导和用于调制通过光波导的光的调制电极（或信号电极（2）） ; 以及布置在所述基板外部的用于向所述光调制元件供给操作所述光调制元件的微波信号的连接基板（4）。 信号输入端子（22）和信号输出端子（23）形成在连接基板（20）上。 抑制输入到信号输入端子（22）的微波信号的放射模式（24）与信号输出端子（23）重新组合的复合抑制单元设置在连接基板上。

公开(公告)号：US20110026868A1

公开(公告)日：2011-02-03

申请号：US12924758

申请日：2010-10-05

申请人： Ryo Shimizu ,  Takahisa Fujita ,  Toru Sugamata

发明人： Ryo Shimizu ,  Takahisa Fujita ,  Toru Sugamata

IPC分类号： G02F1/035

CPC分类号： G02F1/0327 ,  G02F2202/20

摘要： An optical modulator suppresses a radiation mode of a microwave generated in a connection substrate or termination substrate from entering a signal electrode of the optical modulator and suppresses modulation properties from being degraded. The optical modulator includes an optical modulation element (1) having a substrate with an electro-optic effect, an optical waveguide formed on the substrate, and a modulating electrode (or a signal electrode (2)) for modulating light passing through the optical waveguide; and a connection substrate (4), arranged outside the substrate, for supplying the optical modulation element with a microwave signal operating the optical modulation element. A signal input terminal (22) and a signal output terminal (23) are formed on the connection substrate (20). A recombination suppression unit suppresses a radiation mode (24) of the microwave signal input to the signal input terminal (22) from being recombined with the signal output terminal (23) provided on the connection substrate.

公开(公告)号：US20090252500A1

公开(公告)日：2009-10-08

申请号：US12084494

申请日：2006-10-31

申请人： Ryo Shimizu ,  Takahisa Fujita ,  Toru Sugamata

发明人： Ryo Shimizu ,  Takahisa Fujita ,  Toru Sugamata

IPC分类号： H04B10/04

CPC分类号： G02F1/0123 ,  G02F1/0305 ,  G02F1/0356

摘要： It is an object of the invention to provide an optical modulator in which a connection substrate or a terminal substrate is disposed outside an optical modulation element and which can maintain at a proper voltage amplitude value a modulation signal applied to an optical modulation element. An optical modulator includes: a substrate having electro-optic effect; an optical waveguide formed on the substrate; an optical modulation element 1 having a modulation electrode (which includes a signal electrode 2) for modulating light passing through the optical waveguide; and a connection substrate 20 disposed outside the substrate to supply a modulation signal for driving the optical modulation element to the optical modulation element. In the optical modulator, a signal line for propagating the modulation signal is formed on the connection substrate, and a modulation signal monitoring output line 25 for monitoring the voltage amplitude of the modulation signal is provided right in front of an end of the signal line for supplying the modulation signal from the signal line to the optical modulation element.

摘要翻译： 本发明的目的是提供一种光学调制器，其中连接衬底或端子衬底设置在光学调制元件外部，并且可以将施加到光学调制元件的调制信号保持在适当的电压振幅值。 光调制器包括：具有电光效应的衬底; 形成在基板上的光波导; 具有用于调制通过光波导的光的调制电极（包括信号电极2）的光调制元件1; 以及设置在基板外部的连接基板20，以向光调制元件提供用于驱动光调制元件的调制信号。 在光调制器中，在连接基板上形成有用于传播调制信号的信号线，并且用于监视调制信号的电压振幅的调制信号监视输出线25位于信号线的端部的正前方， 将信号线的调制信号提供给光调制元件。

公开(公告)号：US08559768B2

公开(公告)日：2013-10-15

申请号：US12311395

申请日：2007-09-27

申请人： Ryo Shimizu ,  Takahisa Fujita ,  Toru Sugamata

发明人： Ryo Shimizu ,  Takahisa Fujita ,  Toru Sugamata

IPC分类号： G02F1/035 ,  G02B6/10

CPC分类号： G02F1/0356 ,  G02F1/0327 ,  G02F2001/212 ,  G02F2201/127 ,  G02F2202/20

摘要： An object of the invention is to provide a traveling-wave-type optical modulator capable of adjusting the frequency characteristics of an electric/optical conversion response over a wide frequency band, preventing the occurrence of jitter, and improving optical transmission characteristics.A traveling-wave-type optical modulator 20 includes: a substrate that has an electro-optical effect; an optical waveguide that is formed on the substrate; a modulating electrode that controls the modulation of a light wave traveling through the optical waveguide and includes a signal electrode portion 21 and a ground electrode portion; an input interface 22 that is connected to an input side of the signal electrode portion; a terminator 23 that is connected to the end of the signal electrode portion; and an adjustment filter 31 that is provided between the input interface and the signal electrode portion and adjusts frequency characteristics.It is preferable that the adjustment filter 31 be a passive filter.

摘要翻译： 本发明的目的是提供一种能够调整宽频带上的电/光转换响应的频率特性的行波型光调制器，防止发生抖动，提高光传输特性。 行波型光调制器20包括：具有电光效应的基板; 形成在基板上的光波导; 控制通过光波导传播的光波的调制的调制电极，包括信号电极部21和接地电极部; 连接到信号电极部分的输入侧的输入接口22; 连接到信号电极部分的端部的终端器23; 以及设置在输入接口和信号电极部分之间并调节频率特性的调节滤波器31。 调整滤波器31最好是无源滤波器。

公开(公告)号：US08068703B2

公开(公告)日：2011-11-29

申请号：US12085115

申请日：2006-11-13

申请人： Ryo Shimizu ,  Takahisa Fujita ,  Toru Sugamata

发明人： Ryo Shimizu ,  Takahisa Fujita ,  Toru Sugamata

IPC分类号： G02F1/035

CPC分类号： G02F1/0327 ,  G02F2202/20

摘要： An optical modulator is provided which suppresses a radiation mode of a microwave generated in a connection substrate or a termination substrate from entering a signal electrode of the optical modulator and suppresses modulation properties from being degraded.The optical modulator includes an optical modulation element (1) having a substrate with an electro-optic effect, an optical waveguide formed on the substrate, and a modulating electrode (or a signal electrode (2)) for modulating light passing through the optical waveguide; and a connection substrate (4), arranged outside the substrate, for supplying the optical modulation element with a microwave signal operating the optical modulation element. A signal input terminal (22) and a signal output terminal (23) are formed on the connection substrate (20). A recombination suppression unit that suppresses a radiation mode (24) of the microwave signal input to the signal input terminal (22) from being recombined with the signal output terminal (23) is provided on the connection substrate.

摘要翻译： 提供一种光调制器，其抑制在连接基板或终端基板中产生的微波的辐射模式进入光调制器的信号电极，并抑制调制特性降低。 光调制器包括具有电光效应的基板的光调制元件（1），形成在基板上的光波导和用于调制通过光波导的光的调制电极（或信号电极（2）） ; 以及布置在所述基板外部的用于向所述光调制元件供给操作所述光调制元件的微波信号的连接基板（4）。 信号输入端子（22）和信号输出端子（23）形成在连接基板（20）上。 抑制输入到信号输入端子（22）的微波信号的放射模式（24）与信号输出端子（23）重新组合的复合抑制单元设置在连接基板上。

公开(公告)号：US08031987B2

公开(公告)日：2011-10-04

申请号：US12924758

申请日：2010-10-05

申请人： Ryo Shimizu ,  Takahisa Fujita ,  Toru Sugamata

发明人： Ryo Shimizu ,  Takahisa Fujita ,  Toru Sugamata

IPC分类号： G02F1/035

CPC分类号： G02F1/0327 ,  G02F2202/20

摘要： An optical modulator suppresses a radiation mode of a microwave generated in a connection substrate or termination substrate from entering a signal electrode of the optical modulator and suppresses modulation properties from being degraded. The optical modulator includes an optical modulation element (1) having a substrate with an electro-optic effect, an optical waveguide formed on the substrate, and a modulating electrode (or a signal electrode (2)) for modulating light passing through the optical waveguide; and a connection substrate (4), arranged outside the substrate, for supplying the optical modulation element with a microwave signal operating the optical modulation element. A signal input terminal (22) and a signal output terminal (23) are formed on the connection substrate (20). A recombination suppression unit suppresses a radiation mode (24) of the microwave signal input to the signal input terminal (22) from being recombined with the signal output terminal (23) provided on the connection substrate.

摘要翻译： 光调制器抑制在连接基板或终端基板中产生的微波的辐射模式进入光调制器的信号电极，并抑制调制特性的降低。 光调制器包括具有电光效应的基板的光调制元件（1），形成在基板上的光波导和用于调制通过光波导的光的调制电极（或信号电极（2）） ; 以及布置在所述基板外部的用于向所述光调制元件供给操作所述光调制元件的微波信号的连接基板（4）。 信号输入端子（22）和信号输出端子（23）形成在连接基板（20）上。 复合抑制单元抑制输入到信号输入端子（22）的微波信号的放射模式（24）与设置在连接基板上的信号输出端子（23）重新组合。

公开(公告)号：US08270777B2

公开(公告)日：2012-09-18

申请号：US12734434

申请日：2008-10-31

申请人： Ryo Shimizu ,  Toru Sugamata

发明人： Ryo Shimizu ,  Toru Sugamata

IPC分类号： G02F1/035

CPC分类号： G02F1/2255 ,  G02F2201/12 ,  G02F2203/21

摘要： Provided is an optical modulator wherein frequency characteristics in a high frequency band are further improved and temperature drift phenomenon is more suppressed. The optical modulator is provided with a substrate (1) having electro-optical effects; an optical waveguide (2) formed on the substrate; and a modulation electrode on the substrate. The modulation electrode is composed of a signal electrode for controlling an optical wave guided in the optical waveguide, and ground electrodes (4, 5). A high frequency modulation signal introducing path or a terminator is bonded to at least one of end sections (31, 32) of the signal electrode by bonding (81-86). Dummy electrode sections (131-186) are arranged on the side opposite to the end section of the bonded signal electrode, by having a waveguide path in between.

摘要翻译： 提供了一种光调制器，其中高频带中的频率特性进一步提高，并且更加抑制温度漂移现象。 光调制器设置有具有电光效应的基板（1） 形成在所述基板上的光波导（2） 和基板上的调制电极。 调制电极由用于控制在光波导中引导的光波的信号电极和接地电极（4,5）组成。 通过结合（81-86）将高频调制信号导入路径或终端器接合到信号电极的端部（31,32）中的至少一个。 虚拟电极部分（131-186）通过在其之间具有波导路径而布置在与键合信号电极的端部相对的一侧。

公开(公告)号：US20110013863A1

公开(公告)日：2011-01-20

申请号：US12736259

申请日：2009-03-06

申请人： Ryo Shimizu ,  Shinsuke Kanno ,  Toru Sugamata

发明人： Ryo Shimizu ,  Shinsuke Kanno ,  Toru Sugamata

IPC分类号： G02F1/035

CPC分类号： G02F1/0121 ,  G02F1/0356 ,  G02F1/2255

摘要： Disclosed is an optical waveguide element module in which a filter circuit including a capacitor is provided on a line through which a modulation signal is input to a modulating electrode of an optical waveguide element and which is capable of preventing the deterioration of an electric signal in the filter circuit or the occurrence of a resonance phenomenon within the frequency range used and obtaining flat electrical/optical response frequency characteristics in a wide band of more than several tens of gigahertz, even though a single-layer capacitor is used as the capacitor.The optical waveguide element module includes: an optical waveguide element including a substrate 1 that is made of a material having an electro-optical effect, an optical waveguide 2 that is formed on the substrate, and a modulating electrode (3) that modulates a light wave propagated through the optical waveguide; and a filter circuit (7) that is provided on a line through which a modulation signal is input to the modulating electrode and includes a capacitor. The capacitor is a single-layer capacitor and the relative permittivity of a dielectric in the capacitor is equal to or less than 1000.

摘要翻译： 公开了一种光波导元件模块，其中包括电容器的滤波器电路设置在调制信号被输入到光波导元件的调制电极的线上，并且能够防止光信号的劣化 滤波器电路或在所使用的频率范围内出现共振现象，并且即使使用单层电容器作为电容器，也可以获得在几十赫兹的宽带内的平坦的电/光响应频率特性。 光波导元件模块包括：光波导元件，其包括由具有电光效应的材料制成的基板1，形成在基板上的光波导2和调制光的调制电极（3） 波通过光波导传播; 以及设置在调制信号被输入到调制电极并包括电容器的线上的滤波电路（7）。 电容器是单层电容器，并且电容器中的电介质的相对介电常数等于或小于1000。