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公开(公告)号：US5916402A
公开(公告)日：1999-06-29
申请号：US803368
申请日：1997-02-20
CPC分类号： B32B17/10981 , B32B17/10018 , B32B17/10871 , B32B17/10908 , B32B17/1099 , Y10T156/1064
摘要： An object of the present invention is to allow an optical element to be obtained with good precision using a polymer film and a glass substrate as a reinforcer. The present invention is characterized by the fact that a polymer film is formed on a glass substrate which has been treated to prevent the glass substrate and polymer from separation. This allows an optical circuit pattern to be formed without producing separation between the glass substrate and polymer film when the film is formed. The dimensional precision of the configuration of the distributed index in the polymer film can be maintained generally to the same extent as the expansion and shrinkage of the glass substrate. In addition, a vessel obtained with a glass substrate as the bottom surface can be used as the casting vessel.
摘要翻译： 本发明的目的是允许使用聚合物膜和玻璃基板作为增强件以高精度获得光学元件。 本发明的特征在于，在经过处理以防止玻璃基板和聚合物分离的玻璃基板上形成聚合物膜。 这允许在形成膜时不形成玻璃基板和聚合物膜之间的分离而形成光电路图案。 聚合物膜中分布指数的配置的尺寸精度通常可以保持与玻璃基板的膨胀和收缩程度相同的程度。 此外，可以使用以玻璃基板作为底面形成的容器作为铸造容器。
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2.发明授权公开(公告)号：US06636660B2
公开(公告)日：2003-10-21
申请号：US09985813
申请日：2001-11-06
IPC分类号： G02B518
CPC分类号： G02B6/2931 , G01J3/1804 , G02B6/2938 , H04J14/02
摘要： A small-sized and low-cost wavelength division multiplexer having little insertion loss, little polarization dependence and a broad wavelength bandwidth, the wavelength division multiplexer adopting a grating configuration in which an incident light is retroreflected, exit lights from respective grooves are enhanced by interference effect in the incident direction of the light, wave surfaces of evanescent waves in the grooves are parallel to the normal direction of the grating and phases of the evanescent waves in the respective grooves agree with each other. The wavelength division multiplexer has high diffraction efficiency in each of TM and TE polarized lights at a several-order diffraction order and accordingly has a broad wavelength bandwidth and remarkably low polarization dependence.
摘要翻译： 采用入射光回射的光栅配置的波分复用器，具有很小的插入损耗，极小的相关性和宽的波长带宽的小型和低成本的波分多路复用器，通过干扰增强了来自各个沟槽的出射光 在凹槽的入射方向上的影响，凹槽中的消逝波的波面平行于光栅的法线方向，并且各个凹槽中的ev逝波的相位彼此一致。波分复用器具有高的衍射效率 每个TM和TE偏振光以几级衍射级，因此具有宽的波长带宽和极低的偏振依赖性。
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公开(公告)号：US5345329A
公开(公告)日：1994-09-06
申请号：US62552
申请日：1993-05-18
申请人： Kazushi Shirai , Toshihiko Takano , Norio Takeda , Mitsuzo Arii
发明人： Kazushi Shirai , Toshihiko Takano , Norio Takeda , Mitsuzo Arii
CPC分类号： G02F1/093 , G02F2203/06 , H01S3/0064 , Y10S372/703
摘要： An optical isolator comprises two birefringent plates one of which separates two light components whose planes of polarization are perpendicular to each other to make the two light components spatially separate between the two birefringent plates and pass through two separate optical paths and the other of which thereafter combines the two separate light components, two Faraday rotators disposed between the two birefringent plates and having a Faraday rotation angle of approximately 45 degrees, a polarizer disposed between the two Faraday rotators and having a predetermined polarized-light transmitting angle, and a magnetic field device for applying an external magnetic field to the two separate optical paths in the two Faraday rotators to magnetize respective regions near the two optical paths in each of the rotators in opposite magnetization directions to each other. In this arrangement two light components entering the polarizer in the forward direction has the same angle of plane of polarization as the predetermined polarized-light transmitting angle of the polarizer so as to pass through the polarizer, but two light components entering the polarizer in the reverse direction has an angle of plane of polarization perpendicular to the predetermined polarized-light transmitting angle of the polarizer so as not to pass through the polarizer. The high performance polarization-independent optical isolator may be obtained with high isolation of more than 50 dB, which is easy in assembling or manufacturing.
摘要翻译： 光隔离器包括两个双折射板，其中一个分离出两个彼此垂直的平面彼此垂直的光分量，使得两个光分量在两个双折射板之间在空间上分离并通过两个单独的光路，而另一个光组件之后组合 两个独立的光分量，两个分别位于两个双折射板之间并具有约45度的法拉第旋转角的法拉第旋转器，设置在两个法拉第旋转器之间并具有预定偏振光透射角的偏振片，以及用于 将外部磁场施加到两个法拉第转子中的两个分离的光路中，以使彼此相反的磁化方向的每个旋转体中的两个光路附近的各个区域磁化。 在该布置中，向前方向进入偏振器的两个光分量具有与偏振器的预定偏振光透射角相同的偏振平面角，以便穿过偏振器，但两个光分量相反地进入偏振器 方向具有垂直于偏振器的预定偏振光透射角的偏振平面的角度，以便不通过偏振器。 可以获得高达50dB的高隔离度的高性能偏振无关光隔离器，这在组装或制造中容易。
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公开(公告)号：US5073725A
公开(公告)日：1991-12-17
申请号：US625355
申请日：1990-12-11
CPC分类号： G02F1/37
摘要： A metal surface plasmon is excited in a multi-layered film composed of thin metal films and a thin dielectric film, by light having a propagation constant larger than that of the incident light emitted from an optical component such as a prism. Due to an extremely strong alternating electric field produced by the electric field enhancement effect of the metal surface plasmon, a harmonic is generated from a nonlinear optical crystal.
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公开(公告)号：US06295150B1
公开(公告)日：2001-09-25
申请号：US09412615
申请日：1999-10-06
申请人： Hisashi Ohwada , Toshihiko Takano , Norio Takeda , Kuniaki Jinnai
发明人： Hisashi Ohwada , Toshihiko Takano , Norio Takeda , Kuniaki Jinnai
IPC分类号： H04J1402
CPC分类号： H04J14/02
摘要： A wavelength division multiplexing device which can easily utilize existing optical fibers for increasing the transmission capacity by approximately several fold mainly in a short-range information communication network, comprising, as essential elements, a pair of 1×N optical couplers (2≦N≦16), N light emission devices in which one of peak wavelengths thereof differs from every other one by at least 30 nm and N light receivers having optical filters having light-transmission wavelength bands adjusted to correspond to said peak wavelengths, wherein the light emission devices and the light receivers having optical filters corresponding to peak wavelengths of the light emission devices form pairs, and said light emission devices of said light receivers are optically connected to N-port-side ports of one of the 1×N optical couplers.
摘要翻译： 一种波分复用装置，其主要在短距离信息通信网络中可以容易地利用现有光纤将传输容量增加大约几倍，其中包括一对1xN光耦合器（2≤N≤= 16），其中峰值波长其中一个峰值波长彼此不同于30nm的N个发光器件和具有调整为对应于所述峰值波长的光透射波长带的滤光器的N个光接收器，其中发光器件 并且具有对应于发光器件的峰值波长的滤光器的光接收器形成成对，并且所述光接收器的所述发光器件光学连接到1xN光耦合器中的一个的N端口侧端口。
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6.发明授权Optical waveguide module having main-line waveguide and branch waveguides, and optical transmission device including such optical waveguide module 失效具有主线波导和分支波导的光波导模块，以及包括这种光波导模块的光传输装置
公开(公告)号：US5923800A
公开(公告)日：1999-07-13
申请号：US920899
申请日：1997-08-29
申请人： Toshihiko Takano , Michio Ohba , Hisashi Ohwada , Yasunari Kawabata , Hamaho Hashimoto , Kuniaki Jinnai
发明人： Toshihiko Takano , Michio Ohba , Hisashi Ohwada , Yasunari Kawabata , Hamaho Hashimoto , Kuniaki Jinnai
IPC分类号： G02B6/30 , G02B6/122 , G02B6/125 , G02B6/42 , H04B10/2581 , H04B10/27 , H04B10/278 , H04B10/29 , G02B6/26
CPC分类号： G02B6/1221 , G02B6/125 , G02B6/4246
摘要： An optical waveguide module having a main-line waveguide, which is excellent in optical branching properties, important properties of a bus communication network, and the reproducibility of the above branching properties and is easy to produce, and an optical transmission equipment having the above optical waveguide module. The optical waveguide module having a main-line waveguide which is connected to the optical transmission path and works as part of the optical transmission path and a pair of branch waveguides (21,22) which are unidirectionally branched from the main-line waveguide, the main-line waveguide and the branch waveguides being formed by providing an optically transparent polymer film with a refractive index distribution, a light-receiving device (25) being connected to one (21) of a pair of the branch waveguides, a light-emitting device (26) being connected to the other (22).
摘要翻译： 具有光分支特性优异，总线通信网络的重要特性以及上述分支特性的再现性且容易制造的主波导管的光波导模块，以及具有上述光学 波导模块。 该光波导模块具有连接到光传输路径并作为光传输路径的一部分的主线波导和从主线波导单向分支的一对分支波导（21,22）， 主线波导和分支波导通过提供具有折射率分布的光学透明聚合物膜形成，光接收装置（25）连接到一对支路波导中的一个（21），发光 设备（26）连接到另一个（22）。
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公开(公告)号：US5011250A
公开(公告)日：1991-04-30
申请号：US367128
申请日：1989-06-16
申请人： Yoshio Okada , Toshihiko Takano
发明人： Yoshio Okada , Toshihiko Takano
CPC分类号： G02F1/377
摘要： An optical harmonic generator for obtaining a harmonic with a wavelength which is an integral measure of the wavelength of incident light by the use of a nonlinear optical effect is provided which is used, for example, to obtain a laser beam having a shorter wavelength. The optical harmonic generator is formed by laminating a dielectric, a metal thin film, and a nonlinear thin film waveguide. A very strong alternating electric field, produced by the electric field enhancement effect of a metal surface plasmon excited by the metal thin film, is applied near the interface between the nonlinear thin film waveguide and the metal thin film, and a harmonic is generated from the nonlinear thin film waveguide by the alternating electric field. By selecting the film thickness of the metal thin film and the depth of the nonlinear thin film waveguide, phase matching between the incident light and the generated harmonic is achieved.
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公开(公告)号：US4722510A
公开(公告)日：1988-02-02
申请号：US855632
申请日：1986-04-25
摘要： A reversible temperature indicating material which is chemically stable, is not harmful and can be produced relatively inexpensively contains as principal component a polycrystalline bismuth-chromium oxide substance produced by firing a mixture with 50-86 molar % of bismuth-containing compounds and 50-14 molar % of chromium-containing compounds.
摘要翻译： 化学稳定的不可逆温度指示材料是无害的并且相对便宜地生产，其主要成分是通过用50-86摩尔％的含铋化合物和50-14℃焙烧混合物而制备的多晶铋 - 铬氧化物 含铬化合物的摩尔％。
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