公开(公告)号：US20090224753A1

公开(公告)日：2009-09-10

申请号：US11993878

申请日：2006-06-29

申请人： Masafumi Nakada ,  Mizuki Iwanami ,  Keishi Oohashi ,  Norio Masuda

发明人： Masafumi Nakada ,  Mizuki Iwanami ,  Keishi Oohashi ,  Norio Masuda

IPC分类号： G01N21/41

CPC分类号： G01R15/247

摘要： An electric field sensor is obtained by directly forming an electrooptical film of Fabry-Perot resonator structure on a polished surface at a tip of an optical fiber by an aerosol deposition method.

摘要翻译： 通过气溶胶沉积法在光纤末端的抛光表面上直接形成法布里 - 珀罗共振器结构的电光膜，获得电场传感器。

公开(公告)号：US08519323B2

公开(公告)日：2013-08-27

申请号：US13412046

申请日：2012-03-05

申请人： Masafumi Nakada ,  Mizuki Iwanami ,  Keishi Oohashi ,  Norio Masuda

发明人： Masafumi Nakada ,  Mizuki Iwanami ,  Keishi Oohashi ,  Norio Masuda

IPC分类号： G01J1/04 ,  H01J3/14

CPC分类号： G01R15/247

摘要： A magnetic field sensor fabrication method of directly forming, with an aerosol deposition method, at a tip of an optical fiber, a magnetooptical layer having a refractive index that changes depending on a magnetic field, the method includes establishing a relationship of dc≦d≦dr among a diameter d of the magnetooptical layer, a diameter dc of a core of the optical fiber, and a diameter dr of a clad thereof.

摘要翻译： 一种磁场传感器制造方法，其通过气溶胶沉积法直接在光纤末端形成具有根据磁场而变化的折射率的磁光层，该方法包括建立dc @ d @ dr在磁光层的直径d，光纤的芯的直径dc和其包层的直径dr之间。

公开(公告)号：US08153955B2

公开(公告)日：2012-04-10

申请号：US11993878

申请日：2006-06-29

申请人： Masafumi Nakada ,  Mizuki Iwanami ,  Keishi Oohashi ,  Norio Masuda

发明人： Masafumi Nakada ,  Mizuki Iwanami ,  Keishi Oohashi ,  Norio Masuda

IPC分类号： G01J1/04 ,  G08B13/26

CPC分类号： G01R15/247

摘要： An electric field sensor is obtained by directly forming an electrooptical film of Fabry-Perot resonator structure on a polished surface at a tip of an optical fiber by an aerosol deposition method.

摘要翻译： 通过气溶胶沉积法在光纤末端的抛光表面上直接形成法布里 - 珀罗共振器结构的电光膜，获得电场传感器。

公开(公告)号：US08233753B2

公开(公告)日：2012-07-31

申请号：US11917537

申请日：2006-06-23

申请人： Mizuki Iwanami ,  Masafumi Nakada ,  Norio Masuda ,  Keishi Ohashi

发明人： Mizuki Iwanami ,  Masafumi Nakada ,  Norio Masuda ,  Keishi Ohashi

IPC分类号： G02B6/00 ,  G02B6/26 ,  G02F1/035 ,  G02F1/295

CPC分类号： G01R29/0878 ,  G01R33/0325 ,  G02B6/262

摘要： An electric field sensor or a magnetic field sensor includes an optical fiber and an electro-optic layer or a magneto-optic layer. The electro-optic layer or a magneto-optic layer is provided on an end surface of an end portion of the optical fiber. The end surface of the optical fiber is a convex shape. The optical fiber may have the end portion with a shape of a substantial cone formed by extending the end portion, and the electro-optic layer or the magneto-optic layer may be formed on a side surface of a front end of the substantial cone. A dielectric layer may be further included between the optic layer and the end surface.

摘要翻译： 电场传感器或磁场传感器包括光纤和电光层或磁光层。 电光层或磁光层设置在光纤端部的端面上。 光纤的端面为凸形状。 光纤可以具有通过延伸端部形成的基本锥体的形状的端部，并且电光层或磁光层可以形成在基本锥体的前端的侧表面上。 可以在光学层和端面之间进一步包括电介质层。

公开(公告)号：US20090234619A1

公开(公告)日：2009-09-17

申请号：US11917537

申请日：2006-06-23

申请人： Mizuki Iwanami ,  Masafumi Nakada ,  Norio Masuda ,  Keishi Ohashi

发明人： Mizuki Iwanami ,  Masafumi Nakada ,  Norio Masuda ,  Keishi Ohashi

IPC分类号： G02B6/00 ,  B05D5/12 ,  G06F15/00

CPC分类号： G01R29/0878 ,  G01R33/0325 ,  G02B6/262

摘要： An electric field sensor or a magnetic field sensor includes an optical fiber and an electro-optic layer or a magneto-optic layer. The electro-optic layer or a magneto-optic layer is provided on an end surface of an end portion of the optical fiber. The end surface of the optical fiber is a convex shape. The optical fiber may have the end portion with a shape of a substantial cone formed by extending the end portion, and the electro-optic layer or the magneto-optic layer may be formed on a side surface of a front end of the substantial cone. A dielectric layer may be further included between the optic layer and the end surface.

摘要翻译： 电场传感器或磁场传感器包括光纤和电光层或磁光层。 电光层或磁光层设置在光纤端部的端面上。 光纤的端面为凸形状。 光纤可以具有通过延伸端部形成的基本锥体的形状的端部，并且电光层或磁光层可以形成在基本锥体的前端的侧表面上。 可以在光学层和端面之间进一步包括电介质层。

公开(公告)号：US20110001971A1

公开(公告)日：2011-01-06

申请号：US12865908

申请日：2009-02-04

申请人： Mizuki Iwanami ,  Tsuneo Tsukagoshi ,  Risato Ohhira ,  Masafumi Nakada ,  Tomonori Yamada

发明人： Mizuki Iwanami ,  Tsuneo Tsukagoshi ,  Risato Ohhira ,  Masafumi Nakada ,  Tomonori Yamada

IPC分类号： G01J4/00 ,  G01R13/38

CPC分类号： G01R29/0885

摘要： There is provided an electromagnetic field measurement apparatus capable of achieving correct and timely circuit operation detection in an area where electronic devices are mounted at high density. An electromagnetic field measurement apparatus includes: a laser light source; a polarized wave controller that linearly polarizes laser light; an optical fiber probe that has an electrooptic material or a magnetooptic material at its leading end and in which the laser light reflected at the leading end is subjected to polarization modulation in accordance with an electric field intensity or a magnetic field intensity; and an analyzer that converts the laser light reflected by the optical fiber probe into intensity modulated light. The laser light source emits time-multiplexed laser light of a plurality of wavelengths different from one another. The electromagnetic field measurement apparatus further includes: an optical circulator that outputs the laser light linearly polarized by the polarized wave controller to a multiplexer/demultiplexer and outputs the laser light input from the multiplexer/demultiplexer to the analyzer; and a multiplexer/demultiplexer that outputs the laser light to different optical fiber probes according to the wavelength of the laser light and outputs the laser light to the optical circulator.

摘要翻译： 提供一种电磁场测量装置，其能够在电子设备以高密度安装的区域中实现正确和及时的电路操作检测。 电磁场测量装置包括：激光源; 使激光线性偏振的极化波控制器; 在其前端具有电光材料或磁光材料的光纤探针，其中在前端反射的激光根据电场强度或磁场强度进行偏振调制; 以及将由光纤探针反射的激光转换成强度调制光的分析器。 激光光源发射多个彼此不同的波长的多路复用激光。 电磁场测量装置还包括：光学循环器，其将由偏振波控制器线性偏振的激光输出到多路复用器/解复用器，并将从多路复用器/解复用器输入的激光输出到分析器; 以及根据激光的波长将激光输出到不同的光纤探针的多路复用器/解复用器，并将激光输出到光循环器。

公开(公告)号：US08654331B2

公开(公告)日：2014-02-18

申请号：US12865908

申请日：2009-02-04

申请人： Mizuki Iwanami ,  Tsuneo Tsukagoshi ,  Risato Ohhira ,  Masafumi Nakada ,  Tomonori Yamada

发明人： Mizuki Iwanami ,  Tsuneo Tsukagoshi ,  Risato Ohhira ,  Masafumi Nakada ,  Tomonori Yamada

IPC分类号： G01J4/00

CPC分类号： G01R29/0885

摘要： There is provided an electromagnetic field measurement apparatus capable of achieving correct and timely circuit operation detection in an area where electronic devices are mounted at high density. An electromagnetic field measurement apparatus includes: a laser light source; a polarized wave controller that linearly polarizes laser light; an optical fiber probe that has an electrooptic material or a magnetooptic material at its leading end and in which the laser light reflected at the leading end is subjected to polarization modulation in accordance with an electric field intensity or a magnetic field intensity; and an analyzer that converts the laser light reflected by the optical fiber probe into intensity modulated light. The laser light source emits time-multiplexed laser light of a plurality of wavelengths different from one another. The electromagnetic field measurement apparatus further includes: an optical circulator that outputs the laser light linearly polarized by the polarized wave controller to a multiplexer/demultiplexer and outputs the laser light input from the multiplexer/demultiplexer to the analyzer; and a multiplexer/demultiplexer that outputs the laser light to different optical fiber probes according to the wavelength of the laser light and outputs the laser light to the optical circulator.

摘要翻译： 提供一种电磁场测量装置，其能够在电子设备以高密度安装的区域中实现正确和及时的电路操作检测。 电磁场测量装置包括：激光源; 使激光线性偏振的极化波控制器; 在其前端具有电光材料或磁光材料的光纤探针，其中在前端反射的激光根据电场强度或磁场强度进行偏振调制; 以及将由光纤探针反射的激光转换成强度调制光的分析器。 激光光源发射多个彼此不同的波长的多路复用激光。 电磁场测量装置还包括：光学循环器，其将由偏振波控制器线性偏振的激光输出到多路复用器/解复用器，并将从多路复用器/解复用器输入的激光输出到分析器; 以及根据激光的波长将激光输出到不同的光纤探针的多路复用器/解复用器，并将激光输出到光循环器。

公开(公告)号：US20060274456A1

公开(公告)日：2006-12-07

申请号：US11477402

申请日：2006-06-30

申请人： Kazuhiko Hayashi ,  Junichi Fujikata ,  Tsutomu Ishi ,  Shigeru Mori ,  Keishi Ohashi ,  Masafumi Nakada ,  Kiyokazu Nagahara ,  Kunihiko Ishihara ,  Nobuyuki Ishiwata

发明人： Kazuhiko Hayashi ,  Junichi Fujikata ,  Tsutomu Ishi ,  Shigeru Mori ,  Keishi Ohashi ,  Masafumi Nakada ,  Kiyokazu Nagahara ,  Kunihiko Ishihara ,  Nobuyuki Ishiwata

IPC分类号： G11B5/33

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G01R31/3171 ,  G01R33/093 ,  G11B5/00 ,  G11B5/39 ,  G11B5/3903 ,  G11B5/3909 ,  G11B5/3932 ,  G11B5/3967 ,  H01F10/3268

摘要： A magneto-resistance effect head is provided with a lower conductive layer which is provided with a recessed portion, and a vertical bias layer is provided in the recessed portion. A free layer is provided on the lower conductive layer. On the free layer, layered in the following order are the non-magnetic layer, the fixed layer, the fixing layer, and the upper layer so as not to be placed immediately above the vertical bias layer. The non-magnetic layer, the fixed layer, the fixing layer, and the upper layer are buried in an insulation layer. Furthermore, an upper conductive layer is provided on the upper layer and the insulation layer. In the direction of the magnetic field applied by the vertical bias layer, the free layer is made greater in length than the fixed layer and the free layer is disposed in proximity to the vertical bias layer with the distance between the fixed layer and the vertical bias layer remaining unchanged.

公开(公告)号：US20060269182A1

公开(公告)日：2006-11-30

申请号：US11496817

申请日：2006-08-01

申请人： Masafumi Nakada ,  Keishi Ohashi

发明人： Masafumi Nakada ,  Keishi Ohashi

IPC分类号： G02F1/01

CPC分类号： G02F1/195 ,  G02B6/42 ,  G02B6/4214 ,  G02B6/43 ,  G02F1/03 ,  G02F2203/023 ,  H01S5/0071 ,  H01S5/0085 ,  H01S5/02248 ,  H01S5/02284 ,  H01S5/026 ,  H01S5/183

摘要： Laser light emitted from a vertically confined surface emitting laser (VCSEL) is incident on a side surface near an end region of an optical waveguide. The end region of the optical waveguide is processed by polishing to taper at an angle of 45 degrees, and an optical modulator is formed on the polished surface. The optical modulator is a Fabry-Perot modulator using a linear electro-optical effect. The modulator has a thick transparent electro-optical layer which is deposited by using an aerosol deposition method.

摘要翻译： 从垂直限制的表面发射激光器（VCSEL）发射的激光入射在光波导的端部区域附近的侧表面。 通过研磨处理光波导的端部区域以45度的角度逐渐变细，在研磨面上形成光调制器。 光调制器是使用线性电光效应的法布里 - 珀罗调制器。 调制器具有通过使用气溶胶沉积方法沉积的厚透明电光层。

公开(公告)号：US20060268467A1

公开(公告)日：2006-11-30

申请号：US11477410

申请日：2006-06-30

申请人： Kazuhiko Hayashi ,  Junichi Fujikata ,  Tsutomu Ishi ,  Shigeru Mori ,  Keishi Ohashi ,  Masafumi Nakada ,  Kivokazu Nagahara ,  Kunihiko Ishihara ,  Nobuyuki Ishiwata

发明人： Kazuhiko Hayashi ,  Junichi Fujikata ,  Tsutomu Ishi ,  Shigeru Mori ,  Keishi Ohashi ,  Masafumi Nakada ,  Kivokazu Nagahara ,  Kunihiko Ishihara ,  Nobuyuki Ishiwata

IPC分类号： G11B5/33

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G01R31/3171 ,  G01R33/093 ,  G11B5/00 ,  G11B5/39 ,  G11B5/3903 ,  G11B5/3909 ,  G11B5/3932 ,  G11B5/3967 ,  H01F10/3268

摘要： A magneto-resistance effect head is provided with a lower conductive layer which is provided with a recessed portion, and a vertical bias layer is provided in the recessed portion. A free layer is provided on the lower conductive layer. On the free layer, layered in the following order are the non-magnetic layer, the fixed layer, the fixing layer, and the upper layer so as not to be placed immediately above the vertical bias layer. The non-magnetic layer, the fixed layer, the fixing layer, and the upper layer are buried in an insulation layer. Furthermore, an upper conductive layer is provided on the upper layer and the insulation layer. In the direction of the magnetic field applied by the vertical bias layer, the free layer is made greater in length than the fixed layer and the free layer is disposed in proximity to the vertical bias layer with the distance between the fixed layer and the vertical bias layer remaining unchanged.