公开(公告)号：US08374467B2

公开(公告)日：2013-02-12

申请号：US12719905

申请日：2010-03-09

申请人： Masaki Sugiyama ,  Yoshihiko Yoshida ,  Akira Ishii

发明人： Masaki Sugiyama ,  Yoshihiko Yoshida ,  Akira Ishii

IPC分类号： G02F1/035 ,  G02B6/12

CPC分类号： G02B6/12007 ,  G02B6/125 ,  G02F1/0356 ,  G02F1/225 ,  G02F2201/127

摘要： There is provided an optical device including a plurality of Mach-Zehnder modulators; and an input branching waveguide to split an input light so as to direct the resulting light to the plurality of Mach-Zehnder modulators; the Mach-Zehnder modulator comprising: a splitter coupled to the input branching waveguide; pair of waveguides coupled to the splitter; a combiner coupled to the pair of waveguides; and a signal electrode to apply signals to the pair of waveguides; wherein the splitters are disposed in a different orientation to each other.

摘要翻译： 提供了包括多个马赫 - 曾德调制器的光学装置; 以及输入分支波导，以分离输入光，以将所得到的光引导到多个马赫 - 曾德调制器; 所述马赫 - 策德尔调制器包括：耦合到输入分支波导的分路器; 耦合到分离器的一对波导; 耦合到所述一对波导的组合器; 以及用于将信号施加到所述一对波导的信号电极; 其中分离器彼此不同的方向设置。

公开(公告)号：US20090238512A1

公开(公告)日：2009-09-24

申请号：US12289980

申请日：2008-11-07

申请人： Masaki Sugiyama

发明人： Masaki Sugiyama

IPC分类号： G02F1/035

CPC分类号： G02F1/035 ,  G02B6/29352 ,  G02F1/2255 ,  G02F2201/16 ,  G02F2201/18 ,  G02F2203/02 ,  G02F2203/07

摘要： According to an aspect of an embodiment, an optical device comprising: a first modulator for independently modulating first light having a first predetermined polarization mode; a second modulator for independently modulating second light having a second predetermined polarization mode; and a polarization beam coupler having a first port, a second port, a third port, and a fourth port; the polarization beam coupler for inputting the first light from the first modulator via the first port, inputting the second light from the second modulator via the second port, outputting the first light via the third port and inputting reflected and polarization converted light on the first light by a wave plate and a mirror, and outputting the first light having the converted polarization mode and the second light having the predetermined polarization mode via the fourth port.

摘要翻译： 根据实施例的一个方面，一种光学装置，包括：第一调制器，用于独立地调制具有第一预定偏振模式的第一光; 用于独立地调制具有第二预定偏振模式的第二光的第二调制器; 以及具有第一端口，第二端口，第三端口和第四端口的偏振光束耦合器; 所述偏振光束耦合器用于经由所述第一端口输入来自所述第一调制器的第一光，经由所述第二端口输入来自所述第二调制器的所述第二光，经由所述第三端口输出所述第一光，并在所述第一光上输入反射和偏振转换的光 通过波片和反射镜，经由第四端口输出具有转换的偏振模式的第一光和具有预定偏振模式的第二光。

公开(公告)号：US20090220372A1

公开(公告)日：2009-09-03

申请号：US11921021

申请日：2006-05-23

申请人： Takeshi Hattori ,  Shin Tajima ,  Masaki Sugiyama ,  Hidefumi Kishimoto ,  Toshiya Yamaguchi ,  Tadayoshi Kikkou

发明人： Takeshi Hattori ,  Shin Tajima ,  Masaki Sugiyama ,  Hidefumi Kishimoto ,  Toshiya Yamaguchi ,  Tadayoshi Kikkou

IPC分类号： B22F3/12 ,  H01F1/26 ,  C22C38/00 ,  C22C38/02

CPC分类号： H01F3/08 ,  C22C38/02 ,  H01F1/14766 ,  H01F1/15375 ,  H01F1/26 ,  H01F41/0246 ,  H01L41/20

摘要： Disclosed is a low cost, low magnetostriction body which is decreased only in magnetostriction while maintaining magnetic characteristics such as loss and saturation magnetization at desired values. Also disclosed is a dust core using such a low magnetostriction body. Specifically disclosed is a low magnetostriction body obtained by shaping a soft magnetic material powder added with an organic compound having an effect of changing the magnetostriction of the soft magnetic material when combined with it, and heat-treating a green compact in an inert atmosphere. The absolute value of the magnetostriction λO-P (1 T/50 Hz) of the low magnetostriction body is not more than 1.0×10−6. Also specifically disclosed is a dust core using such a low magnetostriction body.

摘要翻译： 公开了一种低成本，低磁致伸缩体，其仅在磁致伸缩中减小，同时将磁特性（例如损耗和饱和磁化强度）保持在期望值。 还公开了使用这种低磁致伸缩体的防尘芯。 具体公开了一种低磁致伸缩体，其通过加成有机化合物的软磁性材料粉末而形成，该有机化合物与其结合时具有改变软磁性材料的磁致伸缩效应，并且在惰性气氛中对生坯进行热处理。 低磁致伸缩体的磁致伸缩λO-P（1T / 50Hz）的绝对值不大于1.0×10 -6。 还具体公开了使用这种低磁致伸缩体的集尘芯。

公开(公告)号：US07471853B2

公开(公告)日：2008-12-30

申请号：US11698202

申请日：2007-01-26

申请人： Masaki Sugiyama

发明人： Masaki Sugiyama

IPC分类号： G02F1/035 ,  G02F1/295 ,  G02F1/03 ,  G02F1/07

CPC分类号： G02F1/0356 ,  G02F1/225 ,  G02F2201/127

摘要： In an optical modulator according to the invention, with respect to two MZ type optical modulators connected to each other in tandem by a curved folded waveguide on an identical substrate, a longitudinal direction of an MZ type optical waveguide unit on an optical input port side is obliquely arranged to a longitudinal direction of an MZ type optical waveguide unit on an optical output port side, and a curvature radius of the curved folded waveguide is made larger than a half of an interval between the optical input/output ports to decrease a length of a feeder portion of a signal electrode corresponding to the MZ type optical waveguide unit on the input side. Therefore, a loss of an electric signal propagated through the signal electrode can be reduced.

公开(公告)号：US07341027B2

公开(公告)日：2008-03-11

申请号：US11510808

申请日：2006-08-28

申请人： Masaki Sugiyama

发明人： Masaki Sugiyama

IPC分类号： F01P7/04

CPC分类号： F02B63/02 ,  F02F1/04 ,  F02F1/305

摘要： A portable 4-cycle engine with a configuration which allows cooling air to flow in the direction of the crankshaft relative to a cylinder head on a cylinder, and a portable machine equipped with this engine, are provided, respectively. In such an engine, the cylinder is separated from the cylinder head including a combustion chamber formed at the cylinder side therein. The engine further comprises a valve train area formed in the cylinder head at the downwind side of the cooling air, and a plurality of vertical fins protruding upward from the cylinder head and extending in the direction of the crankshaft. The valve train area and the plurality of vertical fins are all integrally formed with the cylinder head, so that the cylinder head can be made thinner and lighter with high rigidity to enable the portable machine to become smaller, lighter, and more powerful.

摘要翻译： 一种便携式四冲程发动机，其分别设置有允许冷却空气相对于气缸上的气缸盖在曲轴方向上流动的构造，以及配备有该发动机的便携机。 在这种发动机中，气缸与气缸盖分离，其中包括形成在气缸侧的燃烧室。 发动机还包括形成在冷却空气的顺风侧的气缸盖中的气门机构区域和从气缸盖向上突出并沿曲轴方向延伸的多个垂直翼片。 气门机构区域和多个垂直翼片都与气缸盖整体形成，使得气缸盖可以制造得更高更轻，更高刚性，使便携式机器变得更小，更轻，更强大。

公开(公告)号：US07289686B2

公开(公告)日：2007-10-30

申请号：US11474461

申请日：2006-06-26

申请人： Masaki Sugiyama ,  Kazuhiro Tanaka

发明人： Masaki Sugiyama ,  Kazuhiro Tanaka

IPC分类号： G02F1/035

CPC分类号： G02F1/0356 ,  G02F2201/122 ,  G02F2203/25

摘要： In an optical modulator according to the present invention, a Mach-Zehnder optical waveguide is formed on a substrate having an electro-optic effect, a signal electrode and an earth electrode are disposed along a pair of branching waveguides of the optical waveguide, and an electric signal is applied on the signal electrode to thereby modulate a light being propagated through the optical waveguide. At this time, a first region and a second region are set in an interacting portion where the light and the electric signal interacts to each other, to form a polarization inversion region in each of the set regions, and also, an arrangement pattern of the signal electrode is determined so that a modulation direction in each of the set regions is opposite to each other. As a result, it is possible to realize the optical modulator of simple configuration capable of realizing simultaneously the broad modulation band and the wavelength chirping suppression.

摘要翻译： 在根据本发明的光调制器中，在具有电光效应的基板上形成马赫 - 曾德光波导，信号电极和接地电极沿着光波导的一对分支波导设置，并且 电信号施加在信号电极上，从而调制通过光波导传播的光。 此时，第一区域和第二区域被设置在光和电信号彼此相互作用的相互作用部分中，以在每个设置区域中形成偏振反转区域，并且还设置 确定信号电极，使得每个设定区域中的调制方向彼此相反。 结果，可以实现能够同时实现宽调制频带和波长啁啾抑制的简单配置的光调制器。

公开(公告)号：US20070217729A1

公开(公告)日：2007-09-20

申请号：US11474461

申请日：2006-06-26

申请人： Masaki Sugiyama ,  Kazuhiro Tanaka

发明人： Masaki Sugiyama ,  Kazuhiro Tanaka

IPC分类号： G02F1/035

CPC分类号： G02F1/0356 ,  G02F2201/122 ,  G02F2203/25

摘要： In an optical modulator according to the present invention, a Mach-Zehnder optical waveguide is formed on a substrate having an electro-optic effect, a signal electrode and an earth electrode are disposed along a pair of branching waveguides of the optical waveguide, and an electric signal is applied on the signal electrode to thereby modulate a light being propagated through the optical waveguide. At this time, a first region and a second region are set in an interacting portion where the light and the electric signal interacts to each other, to form a polarization inversion region in each of the set regions, and also, an arrangement pattern of the signal electrode is determined so that a modulation direction in each of the set regions is opposite to each other. As a result, it is possible to realize the optical modulator of simple configuration capable of realizing simultaneously the broad modulation band and the wavelength chirping suppression.

摘要翻译： 在根据本发明的光调制器中，在具有电光效应的基板上形成马赫 - 曾德光波导，信号电极和接地电极沿着光波导的一对分支波导设置，并且 电信号施加在信号电极上，从而调制通过光波导传播的光。 此时，第一区域和第二区域被设置在光和电信号彼此相互作用的相互作用部分中，以在每个设置区域中形成偏振反转区域，并且还设置 确定信号电极，使得每个设定区域中的调制方向彼此相反。 结果，可以实现能够同时实现宽调制频带和波长啁啾抑制的简单配置的光调制器。

公开(公告)号：US07239764B2

公开(公告)日：2007-07-03

申请号：US10298560

申请日：2002-11-19

申请人： Masaharu Doi ,  Tadao Nakazawa ,  Masaki Sugiyama ,  Masaaki Ohyama

发明人： Masaharu Doi ,  Tadao Nakazawa ,  Masaki Sugiyama ,  Masaaki Ohyama

IPC分类号： G02F1/35 ,  G02B6/26

CPC分类号： G02F1/225

摘要： The present invention provides an optical waveguide device wherein a driving voltage to be applied is reduced. The optical waveguide device comprises a substrate cut in a Z-axis direction and having an electro-optical effect, an interference type optical waveguide formed on the substrate for causing lights which propagate along a plurality of parallel optical waveguides to interfere with each other, and a lumped-constant type electrode for applying a voltage for the electro-optical effect to the light propagating along the optical waveguides which form the interference type optical waveguide. The lumped-constant type electrode complements potentials to be supplied to adjacent ones of the plurality of parallel optical waveguides to each other such that voltages having an equal absolute value but having the opposite signs are applied to the adjacent optical waveguides. The apparatus of the present invention is applied to, for example, an optical communication system.

摘要翻译： 本发明提供了一种光波导器件，其中所施加的驱动电压降低。 光波导装置包括：沿Z轴方向切割并具有电光效应的基板;形成在基板上的干涉型光波导，用于使沿着多个平行光波导传播的光彼此干涉;以及 用于将电光效应的电压施加到沿着形成干涉型光波导的光波导传播的光的集总常数型电极。 集总常数型电极补充供给多个平行光波导中的相邻光波导的电位，使得具有相等绝对值但具有相反符号的电压被施加到相邻的光波导。 本发明的装置应用于例如光通信系统。

公开(公告)号：US07177490B2

公开(公告)日：2007-02-13

申请号：US11341593

申请日：2006-01-30

申请人： Masaki Sugiyama ,  Tadao Nakazawa

发明人： Masaki Sugiyama ,  Tadao Nakazawa

IPC分类号： G02F1/295 ,  G02B6/26 ,  G02B6/42 ,  G02B6/10 ,  C03B37/23 ,  C03B37/22

CPC分类号： G02F1/2255 ,  G02B6/12007 ,  G02B6/1228 ,  G02B6/125 ,  G02B6/1342 ,  G02B6/32 ,  G02B6/322 ,  G02B6/4206 ,  G02B6/4214 ,  G02B2006/12097 ,  G02B2006/12119 ,  G02B2006/12142 ,  G02F2201/063

摘要： An optical waveguide is formed on a substrate and includes a curved ridge structure, a curved optical path, and a buffer layer. The curved ridge structure is formed on the substrate so as to have a curvature in a longitudinal direction of the curved ridge structure. The curved optical path is formed along the curved ridge structure. The buffer layer covers a side of the ridge structure and has a lower refractive index than a refractive index of the substrate.

摘要翻译： 光波导形成在基板上，并且包括弯曲脊结构，弯曲光路和缓冲层。 弯曲脊状结构形成在基板上，以便在弯曲脊状结构的纵向具有曲率。 弯曲的光路沿弯曲的脊结构形成。 缓冲层覆盖脊结构的一侧，折射率低于衬底的折射率。

公开(公告)号：US20060210212A1

公开(公告)日：2006-09-21

申请号：US11144615

申请日：2005-06-06

申请人： Masaki Sugiyama

发明人： Masaki Sugiyama

IPC分类号： G02F1/035

CPC分类号： G02F1/035 ,  G02F1/2255 ,  G02F2203/54

摘要： An optical device having a substrate having an electro-optical effect, an optical waveguide formed in the substrate, and an electric field emission electrode, and an electric field convergence electrode to which an electric field emitted from the electric field emission electrode converges. The optical waveguide is formed such that light propagating through the optical waveguide passes through an area under the electric field emission electrode or an area under the electric field convergence electrode and then passes through a remaining electrode. As a result, even when an interaction length is increased, the optical device acquires (increases) a modulation index appropriate to the increase in interaction length, thereby diminishing a drive voltage.