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11. 发明授权

US07551820B2 Optical device 有权
标题翻译：光学装置
公开(公告)号：US07551820B2
公开(公告)日：2009-06-23
申请号：US12035692
申请日：2008-02-22
申请人： Akira Ishii , Takehito Tanaka , Masaharu Doi , Tetsu Hasegawa
发明人： Akira Ishii , Takehito Tanaka , Masaharu Doi , Tetsu Hasegawa
IPC分类号： G02B6/42 , G02F1/035
CPC分类号： G02B6/1228 , G02B6/14 , G02B6/29352 , G02B6/29385 , G02B2006/12142 , G02B2006/12152 , G02F1/0123 , G02F1/225 , G02F1/3132 , G02F2201/58
摘要： An optical device including (a) a substrate having an electro-optic effect; (b) an optical waveguide formed on a surface layer portion of said substrate and including an optical waveguide for performing optical modulation for light inputted to said substrate and an output optical waveguide and a monitoring optical waveguide branched from and connected to a downstream side portion of said modulating optical waveguide, said monitoring optical waveguide guiding light for monitoring optical modulation operation of said modulating optical waveguide; and (c) a reflecting portion being provided on the downstream side of said monitoring optical waveguide for reflecting light propagated along said monitoring optical waveguide, the width of a reflection face of said reflecting portion being substantially equal to the cut-out width of said monitoring optical waveguide.
摘要翻译：一种光学装置，包括（a）具有电光效应的基板; （b）形成在所述基板的表层部分上的光波导，并且包括用于对输入到所述基板的光执行光调制的光波导和从所述基板的下游侧部分分支并连接到所述基板的输出光波导和监视光波导所述调制光波导，所述监测光波导引导光用于监视所述调制光波导的光调制操作; 以及（c）反射部分设置在所述监视光波导的下游侧，用于反射沿所述监视光波导传播的光，所述反射部分的反射面的宽度基本上等于所述监视的切出宽度光波导。

12. 发明申请

US20080019632A1 OPTICAL DEVICE 有权
标题翻译：光学装置
公开(公告)号：US20080019632A1
公开(公告)日：2008-01-24
申请号：US11775917
申请日：2007-07-11
申请人： Akira Ishii , Takehito Tanaka , Masaharu Doi , Tetsu Hasegawa
发明人： Akira Ishii , Takehito Tanaka , Masaharu Doi , Tetsu Hasegawa
IPC分类号： G02F1/035
CPC分类号： G02B6/1228 , G02B6/14 , G02B6/29352 , G02B6/29385 , G02B2006/12142 , G02B2006/12152 , G02F1/0123 , G02F1/225 , G02F1/3132 , G02F2201/58
摘要： An optical device is disclosed which suppresses a bias shift which is a deviation of a phase relationship between output signal light and monitoring light. The optical device includes a substrate having an electro-optic effect, a modulating optical waveguide formed on a surface layer portion of the substrate and forming an interference optical modulator for modulating input light, and an output optical waveguide and a monitoring optical waveguide each formed on the surface layer portion of the substrate and branched from and connected to a downstream side portion of the modulating optical waveguide. The monitoring optical waveguide guides light for monitoring optical modulation operation of the modulating optical waveguide. The monitoring optical waveguide has a reduced width region which has a reduced waveguide width.
摘要翻译：公开了抑制作为输出信号光与监视光之间的相位关系的偏差的偏移偏移的光学装置。光学装置包括具有电光效应的基板，形成在基板的表面层部分上并形成用于调制输入光的干涉光调制器的调制光波导，以及形成在其上的输出光波导和监视光波导衬底的表层部分并且分支并连接到调制光波导的下游侧部分。监视光波导引导用于监视调制光波导的光调制操作的光。监控光波导具有减小的波导宽度的减小的宽度区域。

13. 发明申请

US20070003180A1 Optical modulator 有权
公开(公告)号：US20070003180A1
公开(公告)日：2007-01-04
申请号：US11320699
申请日：2005-12-30
申请人： Takehito Tanaka , Masaharu Doi
发明人： Takehito Tanaka , Masaharu Doi
IPC分类号： G02F1/035
CPC分类号： G02F1/2255 , G02F1/0327
摘要： An optical modulator of the invention includes a substrate having an optical waveguide and an electric waveguide formed therein, a driving circuit that generates a modulation electric signal, a relay circuit that gives the modulation electric signal to the electric waveguide via an electric filter circuit made of a capacitor and a resistor, and a terminal resistor that terminates the modulation electric signal that has propagated through the electric waveguide. The sum of the impedance of the electric filter circuit and the resistance of the terminal resistor is set to be substantially equal to the impedance of the driving circuit. Also, the resistance of the terminal resistor is set to be substantially equal to the characteristic impedance of the electric waveguide. Then, deterioration of the electric reflection characteristic in a low-frequency region can be restrained even if the frequency characteristic of the optical response is flattened and leveled by application of the electric filter circuit.

14. 发明申请

US20080144988A1 OPTICAL DEVICE 有权
标题翻译：光学装置
公开(公告)号：US20080144988A1
公开(公告)日：2008-06-19
申请号：US12035692
申请日：2008-02-22
申请人： Akira Ishii , Takehito Tanaka , Masaharu Doi , Tetsu Hasegawa
发明人： Akira Ishii , Takehito Tanaka , Masaharu Doi , Tetsu Hasegawa
IPC分类号： G02F1/03
CPC分类号： G02B6/1228 , G02B6/14 , G02B6/29352 , G02B6/29385 , G02B2006/12142 , G02B2006/12152 , G02F1/0123 , G02F1/225 , G02F1/3132 , G02F2201/58
摘要： An optical device including (a) a substrate having an electro-optic effect; (b) an optical waveguide formed on a surface layer portion of said substrate and including an optical waveguide for performing optical modulation for light inputted to said substrate and an output optical waveguide and a monitoring optical waveguide branched from and connected to a downstream side portion of said modulating optical waveguide, said monitoring optical waveguide guiding light for monitoring optical modulation operation of said modulating optical waveguide; and (c) a reflecting portion being provided on the downstream side of said monitoring optical waveguide for reflecting light propagated along said monitoring optical waveguide, the width of a reflection face of said reflecting portion being substantially equal to the cut-out width of said monitoring optical waveguide.
摘要翻译：一种光学装置，包括（a）具有电光效应的基板; （b）形成在所述基板的表层部分上的光波导，并且包括用于对输入到所述基板的光执行光调制的光波导和从所述基板的下游侧部分分支并连接到所述基板的输出光波导和监视光波导所述调制光波导，所述监测光波导引导光用于监视所述调制光波导的光调制操作; 以及（c）反射部分设置在所述监视光波导的下游侧，用于反射沿所述监视光波导传播的光，所述反射部分的反射面的宽度基本上等于所述监视的切出宽度光波导。

15. 发明授权

US07263244B2 Optical modulator 有权
标题翻译：光调制器
公开(公告)号：US07263244B2
公开(公告)日：2007-08-28
申请号：US11320699
申请日：2005-12-30
申请人： Takehito Tanaka , Masaharu Doi
发明人： Takehito Tanaka , Masaharu Doi
IPC分类号： G02F1/035
CPC分类号： G02F1/2255 , G02F1/0327
摘要： An optical modulator of the invention includes a substrate having an optical waveguide and an electric waveguide formed therein, a driving circuit that generates a modulation electric signal, a relay circuit that gives the modulation electric signal to the electric waveguide via an electric filter circuit made of a capacitor and a resistor, and a terminal resistor that terminates the modulation electric signal that has propagated through the electric waveguide. The sum of the impedance of the electric filter circuit and the resistance of the terminal resistor is set to be substantially equal to the impedance of the driving circuit. Also, the resistance of the terminal resistor is set to be substantially equal to the characteristic impedance of the electric waveguide. Then, deterioration of the electric reflection characteristic in a low-frequency region can be restrained even if the frequency characteristic of the optical response is flattened and leveled by application of the electric filter circuit.
摘要翻译：本发明的光调制器包括：具有形成在其中的光波导和电波导的基板;产生调制电信号的驱动电路;通过以下的电滤波器电路向电波导提供调制电信号的继电器电路：电容器和电阻器，以及终止通过电波导传播的调制电信号的端子电阻器。电滤波器电路的阻抗和终端电阻的电阻的总和被设定为与驱动电路的阻抗基本相等。此外，端子电阻器的电阻被设定为与电波导的特性阻抗基本相等。然后，即使通过施加电滤波器电路使光学响应的频率特性变平且平整，也可以抑制低频区域中的电反射特性的劣化。

16. 发明授权

US06238102B1 Multiaxial optical coupler 失效
标题翻译：多轴光耦合器
公开(公告)号：US06238102B1
公开(公告)日：2001-05-29
申请号：US09198565
申请日：1998-11-23
申请人： Toshihiro Ohtani , Tomoyuki Itoh , Yoshinobu Kubota , Takehito Tanaka
发明人： Toshihiro Ohtani , Tomoyuki Itoh , Yoshinobu Kubota , Takehito Tanaka
IPC分类号： G02B636
CPC分类号： G02B6/3644 , G02B6/30 , G02B6/32 , G02B6/3652 , G02B6/3833 , G02B6/4206
摘要： A multiaxial optical coupler for use in a device using an LiNbO3 substrate, which is reliable over a wide temperature range and capable of reducing coupling loss. A capillary has a plurality of linear through holes formed therethrough in a manner each inclined with respect to the central axis of the capillary such that the extension line of the central axis of the linear through hole extends through the center of a lens. A plurality of optical fibers are inserted into the linear through holes, respectively. This construction enables the optical axis of an optical beam emitted from each of the optical fibers within the capillary to pass through the center of the lens and reach the end face of a corresponding one of the optical waveguides. Similarly, the construction enables the optical axis of an optical beam emitted from the end face of each of the optical waveguides on the substrate to pass through the center of the lens and reach a corresponding one of the optical fibers within the capillary. The central axis of each of the linear guide holes is slightly inclined with respect to the optical axis of the lens. However, this inclination angle causes very little optical coupling loss.
摘要翻译：一种用于使用LiNbO 3衬底的器件的多轴光耦合器，其在宽的温度范围内是可靠的并且能够减少耦合损耗。毛细管具有以相对于毛细管的中心轴线倾斜的方式形成的多个线状通孔，使得线状通孔的中心轴线的延伸线延伸穿过透镜的中心。多根光纤分别插入线状通孔中。这种结构使得从毛细管内的每个光纤发射的光束的光轴能够穿过透镜的中心并到达相应的一个光波导的端面。类似地，该结构使得从基板上的每个光波导的端面发射的光束的光轴能够穿过透镜的中心并到达毛细管内的相应的一根光纤。每个线性引导孔的中心轴相对于透镜的光轴稍微倾斜。然而，该倾斜角度导致非常小的光耦合损耗。

17. 发明授权

US6136457A Manganese oxide material having MnO.sub.3 as a matrix 失效
标题翻译：具有MnO 3作为基质的氧化锰材料
公开(公告)号：US6136457A
公开(公告)日：2000-10-24
申请号：US39251
申请日：1998-03-16
申请人： Kenjiro Miyano , Takehito Tanaka , Yoshinori Tokura , Yasuhide Tomioka
发明人： Kenjiro Miyano , Takehito Tanaka , Yoshinori Tokura , Yasuhide Tomioka
IPC分类号： C01G45/00 , C04B35/01 , C30B29/22 , G11C13/00 , B32B19/00 , G11C13/04 , H01H35/00 , H01H47/24
CPC分类号： H01L45/147 , C01G45/1264 , C04B35/016 , G11C13/0007 , H01L45/04 , H01L45/1213 , C01P2006/40 , G11C2213/31 , Y10T307/773 , Y10T428/325
摘要： A manganese oxide material that can be used as a switching device or as a memory device or the like is formed of Mn-based oxide material. The Mn-based oxide material exhibits insulator-to-metal transitions induced by irradiating the material with laser light.
摘要翻译：可以用作开关器件或存储器件等的氧化锰材料由Mn基氧化物材料形成。 Mn基氧化物材料通过用激光照射材料而产生绝缘体与金属之间的转变。

18. 发明授权

US06466705B2 Acousto-optic variable-wavelength TE/TM mode converter, and a variable-wavelength optical filter using this converter 失效
标题翻译：声光可变波长TE / TM模式转换器和使用该转换器的可变波长光学滤波器
公开(公告)号：US06466705B2
公开(公告)日：2002-10-15
申请号：US09748180
申请日：2000-12-27
申请人： Takehito Tanaka , Yoshinobu Kubota
发明人： Takehito Tanaka , Yoshinobu Kubota
IPC分类号： G02F1335
CPC分类号： G02F1/125 , G02B6/14
摘要： An acousto-optic variable-wavelength TE/TM mode converter is configured by comprising an optical waveguide, a coupled acoustic waveguide composed of two acoustic waveguides, comb electrodes arranged at the acoustic waveguides, and surface acoustic wave absorbers arranged at the acoustic waveguide. If high-frequency electric signals having different frequencies are applied to the electrodes, surface acoustic waves W11 and W12 occur on the surface of the piezoelectric substrate, meander and propagate in the substrate, and are finally absorbed by the absorbers. The intensity distributions of the surface acoustic waves W11 and W12 are distributions where the intensity is high in a middle portion of the optical guide, and low at both ends of the optical waveguide. The peak positions of the intensities are different, and the bases of the distributions partially overlap between the two absorbers.
摘要翻译：声光可变波长TE / TM模式转换器通过包括光波导，由两个声波导构成的耦合声波导，布置在声波导上的梳状电极以及布置在声波导上的表面声波吸收器构成。如果将具有不同频率的高频电信号施加到电极，则表面声波W11和W12出现在压电基板的表面上，在基板中弯曲并传播，并最终被吸收体吸收。表面声波W11和W12的强度分布是光导体的中间部分的强度高的部分，在光波导的两端处的低分布。强度的峰值位置不同，两个吸收体之间的分布基本部分重叠。

19. 发明授权

US06961494B2 Optical waveguide device 有权
标题翻译：光波导器件
公开(公告)号：US06961494B2
公开(公告)日：2005-11-01
申请号：US10292494
申请日：2002-11-13
申请人： Takehito Tanaka
发明人： Takehito Tanaka
IPC分类号： G02F1/03 , G02F1/035 , G02F1/055 , G02F1/225 , G02B6/26 , G02B6/42
CPC分类号： G02F1/2255 , G02F1/0316
摘要： The attenuation from connectors to the interaction region of the light signal with the microwave can be reduced, and the bandwidth can be improved in an optical waveguide device, in which a space between strip lines on a ceramic substrate at one end of the strip lines connected to first and second input sections is adapted to be narrower than a space between the strip lines at the other end of the strip lines connected to first and second electric connectors.
摘要翻译：可以减少连接器到光信号与微波的相互作用区域的衰减，并且可以在光波导器件中提高带宽，其中在带状线的一端连接的陶瓷基片上的带状线之间的间隔第一和第二输入部适于比连接到第一和第二电连接器的带状线的另一端处的带状线之间的间隔窄。

20. 发明授权

US08120925B2 Circuit device 有权
标题翻译：电路设备
公开(公告)号：US08120925B2
公开(公告)日：2012-02-21
申请号：US12407867
申请日：2009-03-20
申请人： Takehito Tanaka
发明人： Takehito Tanaka
IPC分类号： H05K3/00
CPC分类号： H01P5/028 , G02F1/0123 , G02F1/225
摘要： A circuit device includes a dielectric substrate including a first face and a second face opposite side of the first face; a coplanar line including a first line, a second line and ground electrodes, the first line and the second line being decupled mutually, the ground electrodes formed around the first line and the second line, the first line, the second line and the ground electrodes formed on the first face of the dielectric substrate; a capacitor for connecting the first line and the second line; a termination resistor connecting the second line; a microstrip line formed on the second face of the dielectric substrate; and a conducting portion formed in the dielectric substrate and electrically connecting the first line and the microstrip line.
摘要翻译：电路装置包括：电介质基板，包括第一面和与第一面相对的第二面; 包括第一线，第二线和接地电极的共面线，第一线和第二线相互去耦，形成在第一线和第二线周围的接地电极，第一线，第二线和接地电极形成在电介质基板的第一面上; 用于连接第一线和第二线的电容器; 连接第二线的终端电阻; 形成在电介质基板的第二面上的微带线; 以及形成在电介质基板中并电连接第一线和微带线的导电部分。

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