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1. 发明授权

US08711359B2 Delay interferometer using magneto-optic effect of a variable faraday rotator 失效
标题翻译：延迟干涉仪使用可变法拉第旋转器的磁光效应
公开(公告)号：US08711359B2
公开(公告)日：2014-04-29
申请号：US12923721
申请日：2010-10-05
申请人： Nobuhiro Fukushima
发明人： Nobuhiro Fukushima
IPC分类号： G01B9/02 , H04B10/00
CPC分类号： G02B6/29352 , G02F1/09 , G02F1/092 , G02F2001/212 , G02F2001/215 , G02F2203/20 , G02F2203/21 , G02F2203/50
摘要： A delay interferometer includes first and second optical paths into which incident signal light is split, a first converter including one or more conversion parts to convert the signal light on the first optical path into circularly polarized light and to convert the circularly polarized light into linearly polarized signal light, a phase adjuster to shift an optical phase of the circularly polarized light through a magneto-optic effect, and a second converter to convert a polarization state of the signal light on the second optical path into substantially the same polarization state as a polarization state of the linearly polarized signal light.
摘要翻译：延迟干涉仪包括入射信号光分离的第一和第二光路，第一转换器，包括一个或多个转换部分，以将第一光路上的信号光转换为圆偏振光，并将圆偏振光转换成线偏振光信号光，通过磁光效应移动圆偏振光的光相位的相位调节器，以及将第二光路上的信号光的偏振状态转换为与极化相同的极化状态的第二转换器线偏振信号光的状态。

2. 发明授权

US08331744B2 Optical switch 有权
标题翻译：光开关
公开(公告)号：US08331744B2
公开(公告)日：2012-12-11
申请号：US11940476
申请日：2007-11-15
申请人： Hiroyuki Furukawa , Nobuhiro Fukushima
发明人： Hiroyuki Furukawa , Nobuhiro Fukushima
IPC分类号： G02B6/26 , G02B6/42 , G02B5/30 , G02B27/28 , G02F1/29 , H04B10/08 , H04B17/00 , H04J14/00
CPC分类号： G02B6/356 , G02B6/2938 , G02B6/3518 , G02B6/3548 , G02B6/3588 , G02B6/359
摘要： The optical switch is capable of supervising the performance of optical switching in standby channels, and includes: a collimator unit; an optical splitter; a light-gathering unit; and a rotatable mirror. The optical switch further includes: a mirror angle controlling unit which controls a reflection face angle of the rotatable mirror for each wavelength to switch ON/OFF of the light beam coupling to the optical output port for each wavelength reflected, and determines an optical output port position outputting light beams of the reflected wavelengths; and a monitor unit, installed on a return path of a light beam, which monitors a light beam whose optical coupling is made OFF.
摘要翻译：光开关能够监视待机通道中的光开关性能，包括：准直器单元; 光分路器; 聚光单元; 和可旋转镜。光学开关还包括：镜面角度控制单元，用于控制每个波长的可旋转反射镜的反射面角度，以针对每个反射的波长耦合到光学输出端口的光束的接通/断开，并且确定光学输出端口位置输出反射波长的光束; 以及安装在光束返回路径上的监视器单元，其监视关闭了光耦合的光束。

3. 发明申请

US20070242340A1 Polarization controlling apparatus and polarization operation apparatus 失效
标题翻译：极化控制装置和极化操作装置
公开(公告)号：US20070242340A1
公开(公告)日：2007-10-18
申请号：US11529347
申请日：2006-09-29
申请人： Kazuo Hironishi , Nobuhiro Fukushima , Jens Rasmussen
发明人： Kazuo Hironishi , Nobuhiro Fukushima , Jens Rasmussen
IPC分类号： G02F1/09
CPC分类号： G02F1/0136 , G02F1/09 , G02F2001/0139 , G02F2201/17
摘要： A polarization controlling apparatus is disclosed, which enhances the degree of freedom in apparatus design.The polarization controlling apparatus includes a permanent magnet itself or a permanent magnet to which a part capable of being magnetized is applied, an electromagnet capable of changing the magnitude of a magnetic field to be generated thereby, and a Faraday rotation effect element, disposed at a position at which an interaction magnetic field produced by an interaction between a magnetic field generated by the permanent magnet and a magnetic field generated by the electromagnet acts, for producing a Faraday rotation effect on inputted light by means of the interaction magnetic field. The magnitude of the interaction magnetic field in the Faraday rotation effect element is varied by a magnetic field component generated by the electromagnet to vary the amount of the Faraday rotation effect to be had on the inputted light.
摘要翻译：公开了一种提高了设备设计自由度的偏振控制装置。偏振控制装置包括永磁体本身或永久磁铁，能够被磁化的部分被施加到其上，能够改变由此产生的磁场的大小的电磁体以及法拉第旋转效应元件由永磁体产生的磁场和由电磁体产生的磁场之间的相互作用产生的相互作用磁场作用的位置，用于通过相互作用磁场产生对输入的光的法拉第旋转效应。法拉第旋转效应元件中的相互作用磁场的大小由电磁体产生的磁场分量变化，以改变对输入光的法拉第旋转效应的量。

4. 发明申请

US20070153352A1 Wavelength selection device 有权
标题翻译：波长选择装置
公开(公告)号：US20070153352A1
公开(公告)日：2007-07-05
申请号：US11412914
申请日：2006-04-28
申请人： Kohei Shibata , Nobuhiro Fukushima , Tamotsu Akashi , Toshiya Kishida , Tsuyoshi Yamamoto , Hirofumi Aota , Shinji Yamashita , Shinichi Takeuchi , Hiroyuki Furukawa , Yoshinobu Kubota
发明人： Kohei Shibata , Nobuhiro Fukushima , Tamotsu Akashi , Toshiya Kishida , Tsuyoshi Yamamoto , Hirofumi Aota , Shinji Yamashita , Shinichi Takeuchi , Hiroyuki Furukawa , Yoshinobu Kubota
IPC分类号： G02B26/00 , H04B10/12 , G02F1/00 , H01S3/00
CPC分类号： G02B6/2706 , G01J3/02 , G01J3/0202 , G01J3/0208 , G01J3/021 , G01J3/0237 , G01J3/0256 , G01J3/0286 , G01J3/0291 , G02B6/2766 , G02B6/29311 , G02B6/29313 , G02B6/2938 , G02B6/3512 , G02B6/3548 , G02B6/356 , G02B6/3582 , G02B6/4215
摘要： A housing 20 is equipped for supporting, from a side, a platform of a wavelength selection device comprising an input/output port 10, a collimator 11, an expanding optical system 12, a spectroscopic element, a collecting optical system 14 and a micro electro mechanical system (MEMS) mirror array 15. Because the above noted optical member is supported from the side only, influences of a thermal expansion is limited to the height direction of the optical member and the optical axis direction. By these aspects, the influence of thermal expansion is limited to a two-dimensional from a common three-dimensional, thereby enabling a design of a countermeasure to an influence of a thermal expansion. Also, the support from the side does not create a dead space thereby making the wavelength selection device compact.
摘要翻译：壳体20被配备用于从一侧支撑包括输入/输出端口10，准直器11，扩展光学系统12，分光元件，收集光学系统14和微电子的波长选择装置的平台机械系统（MEMS）镜阵列15.由于上述光学构件仅从侧面被支撑，所以热膨胀的影响限于光学构件的高度方向和光轴方向。通过这些方面，热膨胀的影响从普通的三维被限制为二维，从而能够设计对热膨胀的影响的对策。此外，来自侧面的支撑件不会产生死空间，从而使波长选择装置紧凑。

5. 发明授权

US07050216B2 Variable optical filter 有权
标题翻译：可变光学滤波器
公开(公告)号：US07050216B2
公开(公告)日：2006-05-23
申请号：US11009991
申请日：2004-12-10
申请人： Nobuhiro Fukushima , Hidenori Nakada , Tsugio Tokumasu , Yuko Ota
发明人： Nobuhiro Fukushima , Hidenori Nakada , Tsugio Tokumasu , Yuko Ota
IPC分类号： G02F1/09
CPC分类号： G02F1/09 , G02F2203/055
摘要： A variable optical filter comprises a first polarizer, a first phase difference element operable to generate a phase difference, a variable Faraday rotator operable to impart a variable Faraday rotation, a second phase difference element operable to generate a phase difference, and a second polarizer, wherein said polarizers, said variable Faraday rotator, and said phase difference elements are arranged in the mentioned order along the optical axis, and wherein when the angles formed by the optic axes of said first and second phase difference elements and the transmitted polarization azimuth of the first polarizer are assumed respectively to be φ1 and φ2, these φ1 and φ2 are set to different angles.
摘要翻译：可变光学滤波器包括第一偏振器，可操作以产生相位差的第一相位差元件，可操作以赋予可变法拉第旋转的可变法拉第旋转器，可操作以产生相位差的第二相位差元件和第二偏振器，其中所述偏振器，所述可变法拉第旋转器和所述相位差元件沿着光轴以所述次序布置，并且其中当由所述第一和第二相位差元件的光轴和所述第一和第二相位差元件的透射偏振方位角形成的角度假设第一偏振器分别被假设为phi1和φ2，这些phi1＆lt; 1＆lt; 2＆gt;和＆lt; 2＆gt;被设置为不同角度

6. 发明授权

US06392784B1 Faraday rotator 失效
标题翻译：法拉第旋转器
公开(公告)号：US06392784B1
公开(公告)日：2002-05-21
申请号：US09577339
申请日：2000-05-24
申请人： Seiichi Ikeda , Nobuhiro Fukushima , Hirohiko Sonada
发明人： Seiichi Ikeda , Nobuhiro Fukushima , Hirohiko Sonada
IPC分类号： G02F109
CPC分类号： G02F1/09 , G02F2201/16
摘要： An object of the invention is to provide a small size Faraday rotator which is easy to produce and enables reliable reduction of temperature dependence of the Faraday rotation angle, by defining the crystal orientation and arrangement order of each Faraday element when three or more Faraday elements are used. For this purpose, a Faraday rotator of the present invention comprises: a Faraday element section being composed of a plurality of Faraday elements, a permanent magnet for applying a magnetic field to each Faraday element in a parallel direction to an optical axis direction, and an electromagnet for applying a variable magnetic field in a perpendicular direction to the optical axis direction, wherein each Faraday element is arranged such that the crystal orientation of each is perpendicular to a light beam direction, and crystal orientations of adjacent Faraday elements are opposed to each other.
摘要翻译：本发明的目的是提供一种小尺寸的法拉第旋转器，其容易制造，并且通过在三个或更多法拉第元件为三个或更多个法拉第元件时限定每个法拉第元件的晶体取向和排列顺序，可以可靠地降低法拉第旋转角度的温度依赖性用过的。为此，本发明的法拉第旋转器包括：法拉第元件部分，其由多个法拉第元件组成，永磁体用于沿与光轴方向平行的方向向每个法拉第元件施加磁场;以及用于在与光轴方向垂直的方向上施加可变磁场的电磁体，其中每个法拉第元件布置成使得每个法拉第元件的晶体取向垂直于光束方向，并且相邻的法拉第元件的晶体取向彼此相对。

7. 发明授权

US06299911B1 Extract of Touchi containing an &agr;-glucosidase inhibitor 有权
标题翻译：含有α-葡萄糖苷酶抑制剂的Touchi提取物
公开(公告)号：US06299911B1
公开(公告)日：2001-10-09
申请号：US09530063
申请日：2000-04-24
申请人： Jun Kawabata , Takanori Kasai , Hiroyuki Fujita , Nobuhiro Fukushima
发明人： Jun Kawabata , Takanori Kasai , Hiroyuki Fujita , Nobuhiro Fukushima
IPC分类号： A61K3578
CPC分类号： A61K38/005 , A23L33/105 , A61K36/48
摘要： An &agr;-glucosidase inhibitor is described. It is comprised of an extract of Touchi selected from the group consisting of an extract of Touchi extracted with alcohol, an extract of Touchi extracted with a mixture of water and alcohol in a water to alcohol ratio of 1:5 to 5:1, and an extract of Touchi extracted with water at 100° C. to 140° C. The components in the extract which have a molecular weight of at least 3000 as determined by means of gel filtration or membrane filtration are at most 20% by weight and wherein the extract inhibits &agr;-glucosidase at least 90.4%.
摘要翻译：描述了α-葡糖苷酶抑制剂。它由选自由醇提取的Touchi提取物的Touchi提取物，以水与醇的混合物提取的Touchi提取物以水与醇比为1:5至5:1组成，以及在100℃至140℃下用水萃取的Touchi提取物。通过凝胶过滤或膜过滤测定的具有至少3000分子量的提取物中的组分最多为20重量％，其中提取物抑制α-葡萄糖苷酶至少90.4％。

8. 发明授权

US5999305A Optical device which makes use of magneto-optical effect 失效
标题翻译：利用磁光效应的光学装置
公开(公告)号：US5999305A
公开(公告)日：1999-12-07
申请号：US39564
申请日：1998-03-16
申请人： Nobuhiro Fukushima
发明人： Nobuhiro Fukushima
IPC分类号： G02F1/09
CPC分类号： G02F1/09 , G02F2203/48
摘要： An optical device which can be used as a Faraday rotator which can provide an arbitrary Faraday rotation angle in accordance with a positional condition. The optical device includes first and second ports, magneto-optical crystal, and a unit for applying a magnetic field to the magneto-optical crystal. The first port is positioned in a first region while the second port is positioned in a second region. The first and second ports are optically coupled by a light beam. The magneto-optical crystal is provided such that the light beam may pass therethrough. The unit for applying applies a magnetic field to the magneto-optical crystal so that magnetization of the magneto-optical crystal may have a given distribution in a plane substantially perpendicular to the light beam. Since the magnetization of the magneto-optical crystal has the given distribution, whether the first port is at a certain position or at another position, the Faraday rotation angle provided to the light beam is different in accordance with the distribution. Accordingly, an arbitrary Faraday rotation angle can be provided in accordance with a positional condition.
摘要翻译：可以用作可以根据位置条件提供任意法拉第旋转角度的法拉第旋转器的光学装置。光学装置包括第一和第二端口，磁光晶体和用于向磁光晶体施加磁场的单元。第一端口定位在第一区域中，而第二端口位于第二区域中。第一和第二端口通过光束光耦合。磁光晶体被设置成使得光束可以通过。用于施加的单元将磁场施加到磁光晶体，使得磁光晶体的磁化可以在基本上垂直于光束的平面中具有给定的分布。由于磁光晶体的磁化具有给定的分布，无论第一端口是处于特定位置还是在另一位置，根据分布，提供给光束的法拉第旋转角度是不同的。因此，可以根据位置条件提供任意法拉第旋转角度。

9. 发明授权

US5896201A Optical device for wavelength monitoring and wavelength control 失效
标题翻译：用于波长监测和波长控制的光学装置
公开(公告)号：US5896201A
公开(公告)日：1999-04-20
申请号：US33241
申请日：1998-03-03
申请人： Nobuhiro Fukushima
发明人： Nobuhiro Fukushima
IPC分类号： G01J3/51 , G01J9/00 , H01S5/00 , H04B10/07 , H04B10/516 , H04B10/564 , H04B10/572 , G01B11/00
CPC分类号： G01J9/00
摘要： An optical device for wavelength monitoring and wavelength control. The optical device has an optical element having a first surface and a second surface not parallel to each other. The optical element separates a light beam supplied to the first surface into a first beam reflected on the first surface, a second beam passed through the first surface, reflected on the second surface, and passed through the first surface again, and a third beam passed through the first surface and the second surface in this order. An optical filter is provided so as to transmit the first and second beams. The optical filter has wavelength characteristics different according to an incidence angle. The first and second beams passed through the optical filter are supplied to first and second photodetectors, respectively. On the basis of such a difference in wavelength characteristic, the wavelength of the light beam can be monitored according to outputs from the first and second photodetectors.
摘要翻译：用于波长监测和波长控制的光学装置。光学装置具有光学元件，该光学元件具有彼此不平行的第一表面和第二表面。光学元件将提供给第一表面的光束分离成在第一表面上反射的第一光束，穿过第一表面的第二光束，在第二表面上反射并再次穿过第一表面，并且第三光束通过通过第一表面和第二表面。提供滤光器以便透射第一和第二光束。滤光器具有根据入射角不同的波长特性。通过滤光器的第一和第二光束分别被提供给第一和第二光电检测器。基于这样的波长特性的差异，可以根据第一和第二光电检测器的输出监视光束的波长。

10. 发明授权

US5805759A Optical equalizer having variable transmittance versus wavelength characteristics for attenuating light 失效
标题翻译：光学均衡器具有可变的透射率对波长特性，用于衰减光
公开(公告)号：US5805759A
公开(公告)日：1998-09-08
申请号：US785038
申请日：1997-01-17
申请人： Nobuhiro Fukushima
发明人： Nobuhiro Fukushima
IPC分类号： G02B26/02 , G02B6/34 , G02F1/35 , G02B6/26
CPC分类号： G02B6/2713 , G02B6/29313 , G02B6/29391 , G02B6/2766
摘要： An apparatus, such as an optical equalizer, having variable wavelength characteristics. More specifically, the apparatus attenuates an input light, and includes a beam expander, a beam condenser and an attenuator positioned between the beam expander and the beam condenser. The beam expander converts the input light into a spectral beam propagating in a first direction and having wavelength components spatially separated in a second direction perpendicular to the first direction. The attenuator intersects the spectral beam and has a planer distribution of transmittance so that the spectral beam passes through the attenuator and is attenuated in accordance with the planer distribution of transmittance. The beam expander converts the attenuated spectral beam into an output light. The attenuator is movable in a plane which is not parallel to the first direction. For example, the attenuator can be movable in a plane which is substantially perpendicular to the first direction. Further, the attenuator can include a plurality of individual attenuators, wherein each individual attenuator intersects the spectral beam and has a corresponding planer distribution of transmittance for attenuating the spectral beam in accordance with the corresponding planer distribution of transmittance.
摘要翻译：具有可变波长特性的诸如光均衡器的装置。更具体地，该装置衰减输入光，并且包括位于光束扩展器和光束聚光器之间的光束扩展器，光束聚光器和衰减器。光束扩展器将输入光转换成沿第一方向传播的光谱光束，并且具有在垂直于第一方向的第二方向上空间分离的波长分量。衰减器与光谱束相交，具有透射率的平面分布，使得光束通过衰减器并根据透射率的平面分布衰减。光束扩展器将衰减的光束光束转换为输出光。衰减器可在不平行于第一方向的平面内移动。例如，衰减器可以在基本上垂直于第一方向的平面中移动。此外，衰减器可以包括多个单独的衰减器，其中每个单独的衰减器与光谱束相交，并且具有相应的透射率的平面分布，以根据相应的透射率的平面分布衰减光谱束。

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