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1. 发明授权

US5991067A Optical waveguide substrate, optical waveguide device, second harmonic generation device, and process of producing optical waveguide substrate 失效
标题翻译：光波导基板，光波导装置，二次谐波发生装置以及光波导基板的制造工序
公开(公告)号：US5991067A
公开(公告)日：1999-11-23
申请号：US922565
申请日：1997-09-03
申请人： Makoto Minakata , Tatsuo Kawaguchi , Minoru Imaeda
发明人： Makoto Minakata , Tatsuo Kawaguchi , Minoru Imaeda
IPC分类号： G02B6/12 , G02B6/122 , G02F1/035 , G02F1/37 , G02F1/377
CPC分类号： G02F1/035 , G02B6/122 , G02F1/3775 , G02B2006/12097
摘要： An optical waveguide substrate having a substrate made of ferroelectric optical single crystal and a ridge portion projected from a main plane of the substrate, has a construction such that the ridge portion has a base portion made of ferroelectric optical single crystal and an optical waveguide formed on the base portion. The optical waveguide substrate is formed by forming at least one optical waveguide layer on a main plane of a substrate made of ferroelectric optical single crystal, and mechanically working main planes of the optical waveguide layer and the substrate to form a ridge portion projected from the main plane of the substrate. The optical waveguide substrate can reduce a light transmission loss, increase an extinction ratio, and improve an electric field applying efficiency.
摘要翻译：具有由铁电光学单晶构成的基板和从基板的主面突出的脊部的光波导基板具有这样的结构，使得该脊部具有由铁电光学单晶构成的基部和形成在基部。光波导基板通过在由铁电光学单晶制成的基板的主平面上形成至少一个光波导层，以及在光波导层和基板的机械加工主平面上形成从主体突出的脊部基板的平面。光波导基板可以减少光传输损耗，提高消光比，提高电场施加效率。

2. 发明授权

US06363189B1 Directional coupler 有权
标题翻译：定向耦合器
公开(公告)号：US06363189B1
公开(公告)日：2002-03-26
申请号：US09520113
申请日：2000-03-07
申请人： Makoto Minakata , Jungo Kondo , Tatsuo Kawaguchi , Minoru Imaeda
发明人： Makoto Minakata , Jungo Kondo , Tatsuo Kawaguchi , Minoru Imaeda
IPC分类号： G02B626
CPC分类号： G02F1/3132 , G02F1/0316 , G02F1/3134 , G02F1/3558 , G02F2202/07
摘要： A directional coupler including a substrate having a length and containing a material that exhibits electrooptic properties, the substrate being divided into a plurality of reversed polarization domains along a direction of length. At least two optical waveguides are formed in the substrate in the direction of length thereof and substantially parallel to a main surface thereof. An electrode is disposed above a portion of each optical waveguide for modulating light waves propagating through the waveguides, respectively, the electrode being divided equally by at least a portion of a boundary surface between the plurality of reversed polarization domains.
摘要翻译：一种定向耦合器，包括具有长度并包含具有电光特性的材料的衬底，所述衬底沿着长度方向被分成多个反向极化畴。至少两个光波导在基板的长度方向上形成并基本平行于其主表面。电极设置在每个光波导的一部分上方，用于分别调制通过波导传播的光波，该电极被多个反向极化畴之间的边界面的至少一部分平均分配。

3. 发明授权

US6111682A Light modulators 有权
标题翻译：光调制器
公开(公告)号：US6111682A
公开(公告)日：2000-08-29
申请号：US158718
申请日：1998-09-22
申请人： Makoto Minakata , Jungo Kondo , Takashi Yoshino , Minoru Imaeda
发明人： Makoto Minakata , Jungo Kondo , Takashi Yoshino , Minoru Imaeda
IPC分类号： G02F1/035 , G02F1/03
CPC分类号： G02F1/0356 , G02F2201/127
摘要： A light modulator for modulating light upon application of a signal voltage, said light modulator including a substrate, an optical waveguide formed on a side of a front surface of the substrate, and first and secondary electrodes for applying the signal voltage to the light propagating through the optical waveguide, the first electrode being formed on a front surface side of the optical waveguide and including a main portion covering the front surface side of the optical waveguide and a first overhanging portion hanging over toward one side from the main portion.
摘要翻译：一种用于在施加信号电压时调制光的光调制器，所述光调制器包括衬底，形成在衬底前表面侧的光波导，以及用于将信号电压施加到传播通过的光的第一和第二电极所述光波导，所述第一电极形成在所述光波导的前表面侧，并且包括覆盖所述光波导的前表面侧的主要部分和从所述主体部向一侧悬垂的第一突出部。

4. 发明授权

US06219469B1 Optical waveguide devices, traveling-wave light modulators, and process for producing optical waveguide devices 失效
标题翻译：光波导器件，行波光调制器和用于制造光波导器件的工艺
公开(公告)号：US06219469B1
公开(公告)日：2001-04-17
申请号：US08922020
申请日：1997-09-02
申请人： Makoto Minakata , Minoru Imaeda , Takashi Yoshino , Kenji Kato
发明人： Makoto Minakata , Minoru Imaeda , Takashi Yoshino , Kenji Kato
IPC分类号： G02F1035
CPC分类号： G02F1/035 , G02F1/0316
摘要： An optical waveguide device includes a substrate having a pair of opposed main planes, an optical waveguide formed on one of the opposed main planes, and an electrode portion, wherein a thickness of a portion of the substrate at at least a location where the electrode portion is formed is made smaller than at a remainder thereof.
摘要翻译：光波导器件包括具有一对相对的主平面的基板，形成在相对的主平面中的一个主平面上的光波导和电极部分，其中基板的至少部分的电极部分的厚度被形成为比其剩余部分小。

5. 发明授权

US06226423B1 Optical waveguide element 有权
标题翻译：光波导元件
公开(公告)号：US06226423B1
公开(公告)日：2001-05-01
申请号：US09389765
申请日：1999-09-02
申请人： Makoto Minakata , Jungo Kondo , Takami Hirai , Minoru Imaeda
发明人： Makoto Minakata , Jungo Kondo , Takami Hirai , Minoru Imaeda
IPC分类号： G02F1035
CPC分类号： G02F1/035
摘要： An optical waveguide element includes a substrate showing electrooptical effects and having a pair of major planes opposed with each other, an optical waveguide formed on one major plane of the substrate, and an electrode for applying a modulation signal to an optical wave transmitted through the optical waveguide. In the optical waveguide element mentioned above, there are a thin thickness portion having a relatively thin thickness formed to a portion of said substrate at least positioned correspondingly to said electrode; and a buffer layer formed between said substrate and said electrode, wherein an impedance conformity with the modulation signal applied to said electrode is performed by controlling a thickness of said thin thickness portion.
摘要翻译：光波导元件包括表示电光效应并具有彼此相对的一对主平面的基板，形成在基板的一个主平面上的光波导和用于将调制信号施加到透过光学的光波的电极波导。在上述光波导元件中，具有相对于所述电极至少定位的与所述基板的一部分形成的较薄厚度的薄壁部分; 以及形成在所述基板和所述电极之间的缓冲层，其中通过控制所述薄厚度部分的厚度来执行与施加到所述电极的调制信号的阻抗一致性。

6. 发明授权

US4746191A Optical switch 失效
标题翻译：光开关
公开(公告)号：US4746191A
公开(公告)日：1988-05-24
申请号：US71135
申请日：1987-07-08
申请人： Shojiro Kawakami , Makoto Minakata , Mitsuhiro Takata , Sachio Toyota
发明人： Shojiro Kawakami , Makoto Minakata , Mitsuhiro Takata , Sachio Toyota
IPC分类号： G02F1/055 , G02B6/16
CPC分类号： G02F1/0553
摘要： There is disclosed an optical switch comprising an optical fiber, a block of PLZT, and two polarizers disposed on opposite sides of the block. The fiber has one or more grooves in which the block and the polarizers are received. The block of PLZT induces an electric field perpendicular to the axis of the core of the fiber. The groove or grooves extend across the core of the fiber such that the block covers the whole cross section of the core. Each polarizer consists of alternate laminations of a metal and a dielectric. The laminations are stacked in a direction perpendicular to the axis of the core. Each dielectric lamination is thicker than each metal lamination. If incident light is polarized, one of the polarizers is omitted.
摘要翻译：公开了一种光开关，其包括光纤，PLZT块和设置在块的相对侧上的两个偏振器。光纤具有一个或多个槽，其中接收块和偏振器。 PLZT的块会诱导垂直于纤维芯的轴的电场。凹槽或凹槽延伸穿过纤维的芯，使得该块覆盖芯的整个横截面。每个偏振器由金属和电介质的交替叠层组成。叠片在与芯的轴线垂直的方向上堆叠。每个介电层压比每个金属层压厚。如果入射光被极化，则其中一个偏振器被省略。

7. 发明申请

US20070284529A1 Image Wavelength Conversion Device, Method Of Manufacturing The Device, And Image Conversion System Using The Device 有权
标题翻译：图像波长转换装置，使用该装置的装置和图像转换系统的制造方法
公开(公告)号：US20070284529A1
公开(公告)日：2007-12-13
申请号：US10594929
申请日：2005-03-15
申请人： Makoto Minakata
发明人： Makoto Minakata
IPC分类号： G02F1/365
CPC分类号： H04N5/33 , G02F1/3534 , G02F1/3558 , G02F1/365 , G02F2201/18 , H04N5/2251
摘要： An image wavelength conversion device for converting an infrared light image into a visible light, a method of manufacturing the device, and an image conversion system using the device are provided. The image wavelength conversion device is formed by an optical waveguide array 3 in which one end and the other end of each of a multitude of quasi-phase-matching sum frequency generating optical waveguides are aligned in a two-dimensional plane. One plane of the optical waveguide array 3 forms an incident plane which includes respective waveguides as elements thereof, and the other plane of the optical waveguide array 3 forms an exit plane which includes waveguides corresponding to the waveguides of the incident plane as elements thereof. From an incident light (λ1) and an excitation light (λ2) incident to an arbitrary element of the incident plane, an output light (λ3) having the relationship of (λ1)−1+(λ2)−1=(λ3)−1 is generated in the corresponding waveguide element. λ1, λ2, and λ3 here represent the wavelength of the incident light, the wavelength of the excitation light, and the wavelength of the output light, respectively.
摘要翻译：提供了一种用于将红外光图像转换为可见光的图像波长转换装置，制造该装置的方法以及使用该装置的图像转换系统。图像波长转换装置由光波导阵列3形成，其中多个准相位匹配和频产生光波导中的每一个的一端和另一端在二维平面中排列。光波导阵列3的一个平面形成入射平面，该入射平面包括各自的波导作为其元件，并且光波导阵列3的另一个平面形成出射平面，该出射平面包括对应于入射平面的波导的波导作为其元件。从入射到入射平面的任意元件的入射光（λ1> 1）和激发光（λ<2> 2 ），输出光（λ< 具有（λ1→1）→0→（+ 2）的关系的比较例1 =＆lt; （λ3 3）-1在对应的波导元件中产生。这里的λ1，λ2和λ3 3表示入射光的波长，激发光的波长和波长λ 输出光分别。

8. 发明授权

US07483609B2 Image wavelength conversion device, method of manufacturing the device, and image conversion system using the device 有权
标题翻译：图像波长转换装置，制造装置的方法和使用该装置的图像转换系统
公开(公告)号：US07483609B2
公开(公告)日：2009-01-27
申请号：US10594929
申请日：2005-03-15
申请人： Makoto Minakata
发明人： Makoto Minakata
IPC分类号： G02B6/00 , G02B6/04 , G02B6/06 , G02F1/01 , G02F1/035
CPC分类号： H04N5/33 , G02F1/3534 , G02F1/3558 , G02F1/365 , G02F2201/18 , H04N5/2251
摘要： An image wavelength conversion device for converting an infrared light image into a visible light, a method of manufacturing the device, and an image conversion system using the device are provided. The image wavelength conversion device is formed by an optical waveguide array 3 in which one end and the other end of each of a multitude of quasi-phase-matching sum frequency generating optical waveguides are aligned in a two-dimensional plane. One plane of the optical waveguide array 3 forms an incident plane which includes respective waveguides as elements thereof, and the other plane of the optical waveguide array 3 forms an exit plane which includes waveguides corresponding to the waveguides of the incident plane as elements thereof. From an incident light (λ1) and an excitation light (λ2) incident to an arbitrary element of the incident plane, an output light (λ3) having the relationship of (λ1)−1+(λ2)−1=(λ3)−1 is generated in the corresponding waveguide element. λ1, λ2, and λ3 here represent the wavelength of the incident light, the wavelength of the excitation light, and the wavelength of the output light, respectively.
摘要翻译：提供了一种用于将红外光图像转换为可见光的图像波长转换装置，制造该装置的方法以及使用该装置的图像转换系统。图像波长转换装置由光波导阵列3形成，其中多个准相位匹配和频产生光波导中的每一个的一端和另一端在二维平面中排列。光波导阵列3的一个平面形成入射平面，该入射平面包括各自的波导作为其元件，并且光波导阵列3的另一个平面形成出射平面，该出射平面包括对应于入射平面的波导的波导作为其元件。从入射到入射平面的任意元素的入射光（λ1）和激发光（λ2），具有（λ1）-1 +（λ2）-1 =（λ3） - 1在相应的波导元件中产生。 λ1，λ2和λ3分别表示入射光的波长，激发光的波长和输出光的波长。

9. 发明授权

US4866406A Wide-band optical modulator 失效
标题翻译：宽带光调制器
公开(公告)号：US4866406A
公开(公告)日：1989-09-12
申请号：US085722
申请日：1987-08-17
申请人： Makoto Minakata , Kazunori Miura
发明人： Makoto Minakata , Kazunori Miura
IPC分类号： G02B6/12 , G02F1/03 , G02F1/035
CPC分类号： G02F1/0356
摘要： The present invention provides a wide band optical modulator comprising an optical waveguide which is provided on a substrate and comprises a substance having electrooptic effects, a laminate which is provided on the optical waveguide and comprises a substance having a refractive index smaller than that of the optical waveguide, and two traveling-wave electrodes which are provided opposite to each other on the parallel side surfaces of the laminate in the traveling direction of light so as to hold the laminate therebetween. When the laminate provided on the optical waveguide is replaced by a gap, similar effects to those of the above-described optical modulator can be obtained.
摘要翻译：本发明提供了一种宽带光调制器，其包括光波导，其设置在基板上并且包括具有电光效应的物质，设置在光波导上并且包括折射率小于光学折射率的物质的层叠体波导和两个行波电极，它们在光的行进方向上在层叠体的平行侧表面上彼此相对设置，以便将层压体保持在其间。当设置在光波导上的层叠体被间隙替代时，可以获得与上述光学调制器类似的效果。

10. 发明授权

US06556727B2 Travelling wave-type optical modulator 有权
公开(公告)号：US06556727B2
公开(公告)日：2003-04-29
申请号：US09954368
申请日：2001-09-17
申请人： Makoto Minakata , Jungo Kondo , Atsuo Kondo , Kenji Aoki , Osamu Mitomi
发明人： Makoto Minakata , Jungo Kondo , Atsuo Kondo , Kenji Aoki , Osamu Mitomi
IPC分类号： G02F1035
CPC分类号： G02F1/2255 , G02F1/0305
摘要： A travelling wave-type optical modulator has a substrate made of an electro-optic material, optical waveguides fabricated on the top surface of the substrate, and electrodes for modulating an optical wave through the optical waveguide. The substrate is partially thinned from the bottom surface of the substrate to form a first thinned portion and a second thinned portion so that the thickness of the first thinned portion is set to be larger than the thickness of the second thinned portion, and the optical waveguide is positioned in the first thinned portion.

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