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    Image converting element
    5.
    发明专利
    Image converting element 失效
    图像转换元件

    公开(公告)号：JPS5749915A

    公开(公告)日：1982-03-24

    申请号：JP12558080

    申请日：1980-09-10

    Applicant: Sumitomo Electric Ind Ltd

    Inventor： TADA KOUJI ,  EHARA MIKI ,  TATSUMI MASAMI

    IPC: G02F1/03

    CPC classification number: G02F1/0338

    Abstract: PURPOSE:To prevent the degradation in a titled element and improve its life by sealing the entire part of the element with a polyparaxylene film in the titled element provided with transparent electrodes via insulation layers on both surfaces of a plate-like body having optical transimission effect and electrooptical effect. CONSTITUTION:An insulation layer 2 consisting of a thin film of a high polymer such as polyparaxylene layer or the like is formed on at least one surface of a plate- like body 1 consisting of material having both optical transmission effect and electrooptical effect such as bismuth silicon oxide, bismuth germanium oxide or the like, after which the transparent electrodes 3 consisting of In2O3 or the like are formed on both surfaces and lead wires 13 are attached. Thence, the entire part is overcoated with a polyparaxylene film 14, whereby the intended image converting element is obtained. The resultant element is optically uniform, and does not show any degradation in characteristics at all after repetition of more than 10 times of operations for writing, reading and erasing of images.

    Abstract translation: 目的：通过在具有光学转移效应的板状体的两个表面上的绝缘层上，通过在具有透明电极的标题元件中用聚对二甲苯膜密封元件的整个部分来防止标题元素的劣化，并延长其使用寿命 和电光效应。 构成：在由具有光透射效应和电光效应的材料构成的板状体1的至少一个表面上形成由聚合物如聚对二甲苯层等的薄膜构成的绝缘层2， 氧化硅，氧化铋锗等，然后在两面形成由In2O3等构成的透明电极3，并且引线13被安装。 然后，将整个部分用聚对二甲苯膜14覆盖，从而获得预期的图像转换元件。 所得到的元件是光学上均匀的，并且在重复图像的写入，读取和擦除操作的多于10 6次之后，完全不显示任何特性劣化。

    Wavelength conversion method and laser oscillator
    7.
    发明专利
    Wavelength conversion method and laser oscillator 审中-公开
    波长转换方法和激光振荡器

    公开(公告)号：JP2007298934A

    公开(公告)日：2007-11-15

    申请号：JP2006238921

    申请日：2006-09-04

    Applicant: Mitsubishi Materials Corp ,  三菱マテリアル株式会社

    Inventor： MOULTON PETER F ,  DERGACHEV ALEX ,  MASADA GENTA ,  SEKINE ICHIRO ,  TAKAHASHI MASAKUNI

    IPC: G02F1/37

    CPC classification number: G02F1/3544 ,  G02F1/0147 ,  G02F1/0338

    Abstract: PROBLEM TO BE SOLVED: To provide a wave length conversion method capable of enhancing the wave length conversion efficiency during wave length conversion of laser beam with a wave length conversion element of the lithium tetra-borate single crystal.
    SOLUTION: When the laser beam emitted from the laser oscillator 1 is made incident on the wave length conversion element 2 of lithium tetra-borate single crystal for generating higher harmonics, as for the incident beam on the wavelength conversion element 2, a laser beam is used, wherein the laser beam is tightly converged to set the beam size in the phase matching direction be less than or equal to the product of crystal length and walk off angle. Thereby, the separation between the incident beam and outgoing beam in the crystal becomes larger by the walk off effect, while evading the effect of heat generation of two photon absorption etc. The wavelength conversion efficiency increasing proportional to the length of the crystal can be obtained.
    COPYRIGHT: (C)2008,JPO&INPIT

    Abstract translation: 要解决的问题：提供一种波长转换方法，其能够利用四硼酸锂单晶的波长转换元件在激光束的波长转换期间提高波长转换效率。 解决方案：当从激光振荡器1发射的激光束入射到用于产生高次谐波的四硼酸锂单晶的波长转换元件2上时，对于波长转换元件2上的入射光束， 使用激光束，其中激光束被紧密地收敛以将相位匹配方向上的光束尺寸设置为小于或等于晶体长度和偏离角的乘积。 因此，通过脱离效果，入射光束和出射光束之间的分离变得更大，同时避免了两个光子吸收等的发热效应。可以获得与晶体长度成比例的波长转换效率 。 版权所有（C）2008，JPO＆INPIT

    Wavelength conversion method
    8.
    发明专利
    Wavelength conversion method 审中-公开
    波长转换方法

    公开(公告)号：JP2007298932A

    公开(公告)日：2007-11-15

    申请号：JP2006238919

    申请日：2006-09-04

    Applicant: Mitsubishi Materials Corp ,  三菱マテリアル株式会社

    Inventor： MOULTON PETER F ,  DERGACHEV ALEX ,  MASADA GENTA ,  SEKINE ICHIRO ,  TAKAHASHI MASAKUNI

    IPC: G02F1/37

    CPC classification number: G02F1/3544 ,  G02F1/0147 ,  G02F1/0338

    Abstract: PROBLEM TO BE SOLVED: To enhance the wave length conversion efficiency when generating higher harmonics by making the laser beam incident on the lithium tetra-borate single crystal wave length conversion element.
    SOLUTION: Before the laser beam is emitted from the laser oscillator 1 and incident on the wave conversion element 2, the beam size of X-axis direction is enlarged and the Y-axis direction is reduced and the cross section of the laser beam is formed into oval shape of ellipticity ≥3; thereby the wave conversion efficiency is improved than the case that the cross section of the laser beam is a circular shape.
    COPYRIGHT: (C)2008,JPO&INPIT

    Abstract translation: 要解决的问题：通过使激光束入射到四硼酸锂单晶波长转换元件上来产生高次谐波时，提高波长转换效率。 解决方案：在激光振荡器1发射激光束并入射到波转换元件2之前，X轴方向的光束尺寸增大，Y轴方向减小，激光截面 梁形成椭圆形的椭圆形≥3; 因此与激光束的截面为圆形的情况相比，波长转换效率提高。 版权所有（C）2008，JPO＆INPIT

    Optical demultiplex element
    9.
    发明专利
    Optical demultiplex element 失效
    光学元件

    公开(公告)号：JPS58190921A

    公开(公告)日：1983-11-08

    申请号：JP7271382

    申请日：1982-04-30

    Applicant: Sumitomo Electric Ind Ltd

    Inventor： NISHIWAKI YOSHIKAZU ,  MATSUOKA HARUJI ,  OKAMOTO KENJI

    IPC: G02B6/12 ,  G02F1/03 ,  G02F1/05 ,  G03H1/04

    CPC classification number: G02F1/0338 ,  G03H1/04

    Abstract: PURPOSE:To vary the wavelength of the light which should be divided, by forming an optical waveguide on a substrate with a material which can vary reversibly its refractive index and then writing a diffraction grating by a double luminous flux interference method or an optical beam scanning method. CONSTITUTION:An otical waveguide 2 using single crystals of BSO and BGO is formed on a substrate 1. Transparent electrodes 3 and 3 are formed by vapor deposition on both end surfaces of the substrate 1 and the waveguide 2 respectively. Then the DC voltage is impressed to the electrodes 3 and 3 from a power supply 4 via a switch 5. Both BSO and BGO show an electro-optical effect only when a DC field exists and produces the photosensitivity. The diameter is enlarged for two lumnous fluxes given from a laser, and these luminous fluxes are irradiated to the waveguide 2 of an electro-optical material with equal incident angle phi. An interference is given to the two luminous fluxes when an electric field exists to generate a change of refractive index in response to the interference fringes. The change of the refracive index corresponds to the interference fringes. When the space between gratings is set as (d), only lambda1 is diffracted for mlambda1=2nd cosQ (Q: incident angle of waveguide light 8 and m: number of order).

    Abstract translation: 目的：通过在衬底上形成光波导以改变可折射率的材料，然后通过双光束干涉法或光束扫描来写入衍射光栅来改变应分割的光的波长 方法。 构成：在基板1上形成使用BSO和BGO的单晶的波导管2.透明电极3和3分别通过气相沉积形成在基板1和波导管2的两个端面上。 然后，直流电压通过开关5从电源4向电极3和3施加。只有当DC场存在并且产生光敏性时，BSO和BGO都显示电光效应。 对于从激光器给出的两个梯度通量，直径被扩大，并且这些光束被照射到具有相等入射角度的电光材料的波导2。 当存在电场以产生响应于干涉条纹的折射率变化时，对两个光通量产生干扰。 反射指数的变化对应于干涉条纹。 当光栅之间的空间设置为（d）时，只有λ1被衍射为mlλ1= 2nd cosQ（Q：波导灯8的入射角，m：有序数）。

    Optical switch, optical serial-parallel converter, parallel bit delay variable/wavelength conversion circuit, and optical time switch
    10.
    发明专利
    Optical switch, optical serial-parallel converter, parallel bit delay variable/wavelength conversion circuit, and optical time switch 审中-公开
    光开关，光平行平行转换器，平行延时变差/波长转换电路和光时钟开关

    公开(公告)号：JP2006184345A

    公开(公告)日：2006-07-13

    申请号：JP2004375180

    申请日：2004-12-27

    Applicant: Keio Gijuku ,  学校法人慶應義塾

    Inventor： TSUDA HIROYUKI ,  SAIKI TOSHIHARU

    IPC: G02F1/313

    CPC classification number: G02F1/3136 ,  G02B6/12004 ,  G02B6/12007 ,  G02B6/124 ,  G02F1/0338 ,  G02F1/293 ,  G02F2202/13

    Abstract: PROBLEM TO BE SOLVED: To provide an optical switch which consumes low power, switches with high speed, and is highly practical and low-loss by making the optical switch be a self-hold type. SOLUTION: The optical switch comprises a quartz substrate 101, first and second input waveguides 102a, 102b, a first directional coupler 103, first and second arm waveguides 104a, 104b of a Mach-Zehnder interference circuit, a second directional coupler 105, first and second output waveguides 106a, 106b, and a phase change material portion 100. A control light (for transition from an amorphous state to a crystal state) pulse (with a pulse width 20 ns, pulse intensity 5 mW) with 0.78 micron wavelength is made to irradiate the phase change material portion. A phase change material portion 109 is subjected to a phase change to a crystalline state with control light pulse irradiation, and the optical switch is subjected to transition to a bar state. COPYRIGHT: (C)2006,JPO&NCIPI

    Abstract translation: 要解决的问题：通过使光开关成为自保持型，提供消耗低功率的光开关，高速开关，高实用性和低损耗。 解决方案：光开关包括石英衬底101，第一和第二输入波导102a，102b，第一定向耦合器103，马赫 - 曾德干涉电路的第一和第二臂波导104a，104b，第二定向耦合器105 第一和第二输出波导106a，106b和相变材料部分100.控制光（用于从非晶状态转变为晶体状态）脉冲（脉冲宽度20ns，脉冲强度5mW）与0.78微米 使波长照射到相变材料部分。 通过控制光脉冲照射使相变材料部分109进行相变到结晶状态，并且使光开关转变到条状态。 版权所有（C）2006，JPO＆NCIPI

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