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    • 2. 发明专利
    • Polarization analyzer
    • 极化分析仪
    • JP2009139973A
    • 2009-06-25
    • JP2009025700
    • 2009-02-06
    • Autocloning Technology:Kk有限会社オートクローニング・テクノロジー
    • KAWAKAMI SHOJIROSATO TAKASHIKAWASHIMA TAKAYUKIISHIKAWA OSAMU
    • G02B5/30G01J4/04G02B27/28
    • G02B5/3041G02B5/3033G02B27/288
    • PROBLEM TO BE SOLVED: To provide a thin polarizer array and a wavelength plate array which are composed of micro regions having different optical axis directions and wavelength characteristics and have a high extinction ratio and a low insertion loss, and to provide a polarization analyzer using the thin polarizer array and the wavelength plate array.
      SOLUTION: An array of micro periodic grooves is formed on a substrate, with the directions changed from one region to another. Subsequently, an alternating multilayer film of a high refractive index material such as Si or Ta
      2 O
      5 and a low refractive index material such as SiO
      2 is formed by bias sputtering. By selecting a condition that each layer maintains a periodic protruded/recessed shape, an array of photonic crystal polarizer is formed. By mounting the array of photonic crystal polarizer in a photodetector array, the polarization analyzer that is small, has no movable part, is composed of a small number of components and permits high-precision measurement can be constituted.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:为了提供由具有不同光轴方向和波长特性的微区域构成的具有高消光比和低插入损耗的薄偏振器阵列和波长板阵列,并提供极化 分析仪使用薄偏光片阵列和波长板阵列。 解决方案:在一个基板上形成一个微周期槽阵列,其中方向从一个区域改变到另一个区域。 随后,使用诸如Si或Ta O 5的高折射率材料的交替多层膜和低折射率材料如SiO 2
    • 4. 发明专利
    • Polarization independent optical isolator and optical circulator
    • 偏光独立光隔离器和光电循环器
    • JP2003344808A
    • 2003-12-03
    • JP2002150155
    • 2002-05-24
    • Autocloning Technology:KkShinkosha:Kk有限会社オートクローニング・テクノロジー株式会社信光社
    • KAWAKAMI SHOJIROKAWASHIMA TAKAYUKIISHIKAWA OSAMUSATO TAKASHIIWASHITA JUN
    • G02B6/00G02B1/02G02B5/08G02B5/30G02B27/28
    • PROBLEM TO BE SOLVED: To provide an optical isolator and an optical circulator which has simpler constitution and lower price than before. SOLUTION: The polarization independent optical isolator is constituted by combining a reflection type polarization splitting element 6 which is formed on a base plate 5 and uses photonic crystal having polarization dependence different with places, 1st and 2nd Faraday rotating elements 1 and 2 with a 22.5° angle of rotation, a transparent plate 8, and 1st and 2nd total reflecting mirrors 3 and 4, and polarization splitting element parts 7a and 7b of the reflection type polarization splitting element as parts having different characteristics deviate by 45° in direction of transmitted polarized light; and the reflection type polarization splitting element 6 is disposed between the 1st and 2nd Faraday rotating elements 1 and 2, the transparent plate 8 is disposed between the reflection type polarization splitting element 6 and 2nd Faraday rotating element 2, and the 1st and 2nd Faraday rotating elements 1 and 2 are arranged between the 1st and 2nd total reflecting mirrors 3 and 4. COPYRIGHT: (C)2004,JPO
    • 要解决的问题:提供具有比以前更简单的构造和更低价格的光隔离器和光循环器。 解决方案:偏振无关光隔离器通过组合形成在基板5上的反射型偏振光分离元件6,并使用具有偏振度依赖性的光子晶体,第1和第2法拉第旋转元件1和2与 22.5°的旋转角度,透明板8以及第1和第2全反射镜3和4,以及作为具有不同特性的部分的反射型偏振分离元件的偏振分束元件部分7a和7b在方向上偏离45° 透射偏振光; 并且反射型偏振光分离元件6设置在第1和第2法拉第旋转元件1,2之间,透明板8设置在反射型偏振光分离元件6和第2法拉第旋转元件2之间,第1和第2法拉第旋转 元件1和2布置在第一和第二总反射镜3和4之间。版权所有(C)2004,JPO
    • 7. 发明专利
    • Variable characteristic photonic crystal waveguide
    • 可变特性光子晶体波导
    • JP2004054197A
    • 2004-02-19
    • JP2002247783
    • 2002-07-23
    • Autocloning Technology:Kk有限会社オートクローニング・テクノロジー
    • KAWAKAMI SHOJIROSATO TAKASHIODERA YASUOISHIKAWA OSAMUOKUBO HIROYUKIKAWASHIMA TAKAYUKIMIURA KENTA
    • G02B6/12G02F1/061G02F1/065
    • PROBLEM TO BE SOLVED: To provide a photonic crystal optical waveguide element having a variable characteristic function by external electric field application and its manufacturing method, and a high-function device for optical communication which uses the element. SOLUTION: In the photonic crystal optical waveguide, liquid crystal and an electrode is introduced nearby a core in an area to be given variable characteristics and a refractive index that waveguide light senses is varied by changing the alignment direction of molecules of the liquid crystal forming a portion of an upper clad with an electric signal to control the propagation characteristic. The introduction of the liquid crystal is carried out by forming a hole of desired depth in a desired area by using an ion beam etc., and injecting the liquid crystal therein, or previously forming the upper clad thin and arranging the liquid crystal over the entire surface of the waveguide by using a spacer. Further, the device for optical communication such as a high-performance optical switch and a variable wavelength filter can be constituted by using electric field control over the Bragg blocking characteristic, wavelength dispersion characteristic, etc., of the waveguide. COPYRIGHT: (C)2004,JPO
    • 要解决的问题:提供一种通过外部电场应用具有可变特征功能的光子晶体光波导元件及其制造方法,以及使用该元件的用于光通信的高功能器件。 解决方案:在光子晶体光波导中,液晶和电极在一个区域的芯附近被引入给定的可变特性,并且通过改变液体的分子的取向方向来改变波导光感测的折射率 形成具有电信号的上部包层的一部分以控制传播特性。 液晶的引入是通过使用离子束等在期望的区域形成所需深度的孔,并将液晶注入其中,或者预先形成上包层薄层并将液晶排列在整个上 波导的表面。 此外,可以通过对波导的布拉格阻挡特性,波长色散特性等进行电场控制来构成诸如高性能光开关和可变波长滤波器之类的光通信装置。 版权所有(C)2004,JPO