公开(公告)号：US06586861B2

公开(公告)日：2003-07-01

申请号：US09892606

申请日：2001-06-28

申请人： Koichiro Misu ,  Kenji Yoshida ,  Koji Ibata ,  Shusou Wadaka ,  Tsutomu Nagatsuka ,  Fusaoki Uchikawa ,  Akira Yamada ,  Chisako Maeda

发明人： Koichiro Misu ,  Kenji Yoshida ,  Koji Ibata ,  Shusou Wadaka ,  Tsutomu Nagatsuka ,  Fusaoki Uchikawa ,  Akira Yamada ,  Chisako Maeda

IPC分类号： H01L41047

CPC分类号： H03H9/174 ,  H03H3/04 ,  H03H9/02133 ,  H03H9/02157 ,  H03H9/176 ,  H03H2003/0428

摘要： There is provided a film bulk acoustic wave device comprising: a silicon substrate 1, a dielectric film 21 including a silicon nitride 16 formed on the substrate 1 and a silicon oxide 2 on the silicon nitride 16, a bottom electrode 3 formed on the dielectric film 21, a piezoelectric film 17 formed on the bottom electrode 3, and a top electrode 5 formed on the piezoelectric film 17, wherein a via hole is formed in such a manner that the thickness direction of a part of the silicon substrate 1 which is opposite to a region including a part where the top electrode 5 exists is removed from the bottom surface of the silicon substrate 1 to a boundary surface with the silicon nitride 16.

摘要翻译： 本发明提供一种薄膜压电元件，其特征在于，具备硅基板1，在基板1上形成有氮化硅16的电介质膜21和在氮化硅16上形成的氧化硅2，在电介质膜上形成的底部电极3 如图21所示，形成在底部电极3上的压电膜17和形成在压电膜17上的顶部电极5，其中形成通孔，使得硅衬底1的与其相对的部分的厚度方向 到包括顶部电极5存在的部分的区域从硅衬底1的底表面去除到与氮化硅16的边界面的区域。

公开(公告)号：US4954793A

公开(公告)日：1990-09-04

申请号：US214521

申请日：1988-07-01

申请人： Koichiro Misu ,  Shusou Wadaka ,  Tsutomu Nagatsuka

发明人： Koichiro Misu ,  Shusou Wadaka ,  Tsutomu Nagatsuka

IPC分类号： H03H9/64 ,  H03H3/08 ,  H03H9/72

CPC分类号： H03H9/72 ,  H03H2240/00

摘要： A filter bank constituted in such a manner that an interdigital transducer on the input side of a plurality of each of surface acoustic wave filters having different pass bands is used as a shunt element and the shunt element is connected to a series element composed of reactance elements to form a ladder-type circuit, and a circuit composed of an inductor and a capacitor connected in parallel with each other is used as one part of the series element to form a pole near the cut-off frequency, to increase an amount of attenuation of a T-type circuit near the cut-off frequency, and to largely reduce transmitted electric power of spurious components even in a surface acoustic wave filter in a section near a signal source.

摘要翻译： 一种滤波器组，其特征在于，使用具有不同通带的多个声表面波滤波器的输入侧的叉指式换能器作为分路元件，并且分路元件与由电抗元件构成的串联元件 形成梯型电路，并且将由电感器和彼此并联的电容器组成的电路用作串联元件的一部分，以在截止频率附近形成极点，以增加衰减量 的截止频率附近的T型电路，并且即使在靠近信号源的部分中的表面声波滤波器中也能大大降低杂散成分的透射功率。

公开(公告)号：US06674215B1

公开(公告)日：2004-01-06

申请号：US09889392

申请日：2001-07-16

申请人： Kenji Yoshida ,  Shusou Wadaka ,  Koichiro Misu ,  Tsutomu Nagatsuka ,  Kouji Murai ,  Masatsune Yamaguchi ,  Kenya Hashimoto ,  Tatsuya Ohmori ,  Koji Ibata

发明人： Kenji Yoshida ,  Shusou Wadaka ,  Koichiro Misu ,  Tsutomu Nagatsuka ,  Kouji Murai ,  Masatsune Yamaguchi ,  Kenya Hashimoto ,  Tatsuya Ohmori ,  Koji Ibata

IPC分类号： H01L4104

CPC分类号： H03H9/02559

摘要： There is disclosed an acoustic wave apparatus, constructed in such a manner that a surface rotated in the range of 34° to 41° from a crystal Y axis around the crystal X axis of lithium tantalate is set as the surface of a substrate, a standardized electrode thickness (h/&lgr;) obtained by standardizing a thickness h of an electrode finger constituting at least a part of an interdigital transducer by a wavelength &lgr; of a surface acoustic wave is set to the range of 0.01 to 0.05, and a duty ratio (w/p) of the electrode finger decided based on a width w and an arraying cycle p of the electrode finger is set to the value ranging from 0.6 to just below 1.0.

摘要翻译： 公开了一种声波装置，其结构是将从钽酸锂的晶体X轴周围的晶体Y轴34°至41°范围内旋转的表面设定为基板表面，标准化 通过将构成至少一部分交叉指型换能器的电极指的厚度h通过声表面波的波长λ标准化得到的电极厚度（h /λ）设定为0.01〜0.05的范围，占空比 将基于电极指的宽度w和排列周期p决定的电极指的w / p设定为从0.6到刚刚低于1.0的值。

公开(公告)号：US07723666B2

公开(公告)日：2010-05-25

申请号：US11884205

申请日：2005-05-02

申请人： Tsutomu Nagatsuka ,  Yoshihito Hirano ,  Tomohiro Akiyama ,  Ryuji Ishii ,  Masahito Sato ,  Toshitaka Aoyagi ,  Eitaro Ishimura

发明人： Tsutomu Nagatsuka ,  Yoshihito Hirano ,  Tomohiro Akiyama ,  Ryuji Ishii ,  Masahito Sato ,  Toshitaka Aoyagi ,  Eitaro Ishimura

IPC分类号： H01J40/14

CPC分类号： H01L31/101 ,  H01L31/02019

摘要： Provided is a photodiode array that is capable of outputting an electric signal with a large electric power and an optical microwave transmission system receiver that supplies an electric power with the aid of an optical fiber and does not require the electric power line from the external. An input modulation light is branched and input to a plurality of photodiode elements (1), electric output terminals (5) of the plurality of photodiode elements (1) are connected in parallel to each other, and a combined electric output is extracted. The electric output terminal (5) of the photodiode array configured as described above is connected to an antenna (7) without an intermediation of an amplifier circuit.

摘要翻译： 提供了能够输出具有大功率的电信号的光电二极管阵列以及借助于光纤提供电力并且不需要来自外部的电力线的光学微波传输系统接收器。 输入调制光分支并输入多个光电二极管元件（1），多个光电二极管元件（1）的电输出端（5）彼此并联连接，并提取组合电输出。 如上所述配置的光电二极管阵列的电输出端子（5）连接到天线（7）而不用放大器电路。

公开(公告)号：US20100303108A1

公开(公告)日：2010-12-02

申请号：US12677827

申请日：2007-09-12

申请人： Yasuharu Koyata ,  Takayuki Yanagisawa ,  Shuhei Yamamoto ,  Yoshihito Hirano ,  Tsutomu Nagatsuka

发明人： Yasuharu Koyata ,  Takayuki Yanagisawa ,  Shuhei Yamamoto ,  Yoshihito Hirano ,  Tsutomu Nagatsuka

IPC分类号： H01S3/10

CPC分类号： G02F1/3544 ,  G02F1/3775 ,  H01S3/0092

摘要： A wavelength converting element that is of a planar waveguide type, includes a plate-like nonlinear optical material, and performs a wavelength conversion on a fundamental wave of a laser beam by propagating the fundamental wave in a plurality of laser oscillation modes in a direction perpendicular to a main surface of the plate-like nonlinear optical material, the direction being perpendicular to an optical axis, wherein periods of polarization inversions of the nonlinear optical material are changed so that each of the periods has a width of a phase matching band A that includes phase matching conditions of at least two of the plurality of laser oscillation modes and so that a non-polarization-inversion region and a polarization inversion region are formed in the nonlinear optical material.

摘要翻译： 平面波导型的波长转换元件包括板状非线性光学材料，并且通过在垂直方向上以多个激光振荡模式传播基波来对激光束的基波进行波长转换 到板状非线性光学材料的主表面，其方向垂直于光轴，其中改变非线性光学材料的偏振反转周期，使得每个周期具有相位匹配带A的宽度， 包括多个激光振荡模式中的至少两个的相位匹配条件，并且在非线性光学材料中形成非极化反转区域和极化反转区域。

公开(公告)号：US08705165B2

公开(公告)日：2014-04-22

申请号：US13121135

申请日：2009-09-17

申请人： Yosuke Akino ,  Yoshihito Hirano ,  Takayuki Yanagisawa ,  Shuhei Yamamoto ,  Tsutomu Nagatsuka ,  Toshiyuki Ando

发明人： Yosuke Akino ,  Yoshihito Hirano ,  Takayuki Yanagisawa ,  Shuhei Yamamoto ,  Tsutomu Nagatsuka ,  Toshiyuki Ando

IPC分类号： G02F1/35 ,  G02F1/37 ,  G02F1/377 ,  H01S3/109

CPC分类号： G02F1/37 ,  G02F1/3501 ,  G02F1/3558 ,  G02F1/377 ,  G02F1/3775 ,  G02F2001/3505 ,  G02F2001/3548 ,  G02F2201/12 ,  G02F2202/20 ,  G02F2203/21 ,  H01S3/109

摘要： An optical wavelength conversion element includes: a wavelength conversion waveguide that has a periodic polarization reversal structure having alternately and cyclically formed domains of which polarization directions are inverted, that guides light as a fundamental wave corresponding to the periodic polarization reversal structure, and performs a wavelength conversion of the guided fundamental wave; a first clad that is made of a dielectric having a refractive index lower than that of the wavelength conversion waveguide and is provided in contact with the domains; a second clad that is made of a dielectric having a refractive index lower than that of the wavelength conversion waveguide and is provided in contact with the domains such that the second clad is opposed to the first clad film; a first conducting unit that electrically connects the domains in parallel via the first clad; and a second conducting unit that electrically connects the domains in parallel via the second clad.

摘要翻译： 光波长转换元件包括：具有周期性极化反转结构的波长转换波导，其具有交替循环形成的极化方向反转的畴，其引导光作为与周期性极化反转结构对应的基波，并且执行波长 导向基波的转换; 第一包层，其由折射率低于波长转换波导的折射率的电介质构成，并且与所述畴接触; 第二包层，其由折射率低于波长转换波导的折射率的电介质构成，并且与所述畴接触，使得第二包层与第一包层膜相对; 第一导电单元，其通过第一包层电连接畴; 以及第二导电单元，其通过第二包层电连接所述畴。

公开(公告)号：US08094690B2

公开(公告)日：2012-01-10

申请号：US12677827

申请日：2007-09-12

申请人： Yasuharu Koyata ,  Takayuki Yanagisawa ,  Shuhei Yamamoto ,  Yoshihito Hirano ,  Tsutomu Nagatsuka

发明人： Yasuharu Koyata ,  Takayuki Yanagisawa ,  Shuhei Yamamoto ,  Yoshihito Hirano ,  Tsutomu Nagatsuka

IPC分类号： H01S3/10

CPC分类号： G02F1/3544 ,  G02F1/3775 ,  H01S3/0092

摘要： A wavelength converting element that is of a planar waveguide type, includes a plate-like nonlinear optical material, and performs a wavelength conversion on a fundamental wave of a laser beam by propagating the fundamental wave in a plurality of laser oscillation modes in a direction perpendicular to a main surface of the plate-like nonlinear optical material, the direction being perpendicular to an optical axis, wherein periods of polarization inversions of the nonlinear optical material are changed so that each of the periods has a width of a phase matching band A that includes phase matching conditions of at least two of the plurality of laser oscillation modes and so that a non-polarization-inversion region and a polarization inversion region are formed in the nonlinear optical material.

摘要翻译： 平面波导型的波长转换元件包括板状非线性光学材料，并且通过在垂直方向上以多个激光振荡模式传播基波来对激光束的基波进行波长转换 到板状非线性光学材料的主表面，其方向垂直于光轴，其中改变非线性光学材料的偏振反转周期，使得每个周期具有相位匹配带A的宽度， 包括多个激光振荡模式中的至少两个的相位匹配条件，并且在非线性光学材料中形成非极化反转区域和极化反转区域。

公开(公告)号：US20110194171A1

公开(公告)日：2011-08-11

申请号：US13121135

申请日：2009-09-17

申请人： Yosuke Akino ,  Yoshihito Hirano ,  Takayuki Yanagisawa ,  Shuhei Yamamoto ,  Tsutomu Nagatsuka ,  Toshiyuki Ando

发明人： Yosuke Akino ,  Yoshihito Hirano ,  Takayuki Yanagisawa ,  Shuhei Yamamoto ,  Tsutomu Nagatsuka ,  Toshiyuki Ando

IPC分类号： G02F1/35 ,  G02B6/10 ,  H01S3/10

CPC分类号： G02F1/37 ,  G02F1/3501 ,  G02F1/3558 ,  G02F1/377 ,  G02F1/3775 ,  G02F2001/3505 ,  G02F2001/3548 ,  G02F2201/12 ,  G02F2202/20 ,  G02F2203/21 ,  H01S3/109

摘要： An optical wavelength conversion element includes: a wavelength conversion waveguide that has a periodic polarization reversal structure having alternately and cyclically formed domains of which polarization directions are inverted, that guides light as a fundamental wave corresponding to the periodic polarization reversal structure, and performs a wavelength conversion of the guided fundamental wave; a first clad that is made of a dielectric having a refractive index lower than that of the wavelength conversion waveguide and is provided in contact with the domains; a second clad that is made of a dielectric having a refractive index lower than that of the wavelength conversion waveguide and is provided in contact with the domains such that the second clad is opposed to the first clad film; a first conducting unit that electrically connects the domains in parallel via the first clad; and a second conducting unit that electrically connects the domains in parallel via the second clad.

摘要翻译： 光波长转换元件包括：具有周期性极化反转结构的波长转换波导，其具有交替循环形成的极化方向反转的畴，其引导光作为与周期性极化反转结构对应的基波，并且执行波长 导向基波的转换; 第一包层，其由折射率低于波长转换波导的折射率的电介质构成，并且与所述畴接触; 第二包层，其由折射率低于波长转换波导的折射率的电介质构成，并且与所述畴接触，使得第二包层与第一包层膜相对; 第一导电单元，其通过第一包层电连接畴; 以及第二导电单元，其通过第二包层电连接所述畴。

公开(公告)号：US20090121118A1

公开(公告)日：2009-05-14

申请号：US11884205

申请日：2005-05-02

申请人： Tsutomu Nagatsuka

发明人： Tsutomu Nagatsuka

IPC分类号： G01J1/42

CPC分类号： H01L31/101 ,  H01L31/02019

摘要： Provided is a photodiode array that is capable of outputting an electric signal with a large electric power and an optical microwave transmission system receiver that supplies an electric power with the aid of an optical fiber and does not require the electric power line from the external. An input modulation light is branched and input to a plurality of photodiode elements (1), electric output terminals (5) of the plurality of photodiode elements (1) are connected in parallel to each other, and a combined electric output is extracted. The electric output terminal (5) of the photodiode array configured as described above is connected to an antenna (7) without an intermediation of an amplifier circuit.

摘要翻译： 提供了能够输出具有大功率的电信号的光电二极管阵列以及借助于光纤提供电力并且不需要来自外部的电力线的光学微波传输系统接收器。 输入调制光分支并输入多个光电二极管元件（1），多个光电二极管元件（1）的电输出端（5）彼此并联连接，并提取组合电输出。 如上所述配置的光电二极管阵列的电输出端子（5）连接到天线（7）而不用放大器电路。