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    Optical switch, optical add-drop module, and optical communication system
    1.
    发明授权
    Optical switch, optical add-drop module, and optical communication system 有权
    光开关，光分插模块和光通讯系统

    公开(公告)号：US07046872B2

    公开(公告)日：2006-05-16

    申请号：US10367948

    申请日：2003-02-19

    申请人： Ken Sakuma ,  Daigo Fujita ,  Hirokuni Ogawa ,  Koji Omichi ,  Hideyuki Hosoya

    发明人： Ken Sakuma ,  Daigo Fujita ,  Hirokuni Ogawa ,  Koji Omichi ,  Hideyuki Hosoya

    IPC分类号： G02B6/26

    CPC分类号： G02F1/3137 ,  G02B6/266 ,  G02B6/3546 ,  G02B6/3596 ,  G02B2006/12145 ,  G02B2006/12147 ,  G02F1/0147 ,  G02F1/1334 ,  G02F2203/48

    摘要： This two input two output type optical switch includes four one input two output type optical switches which are arranged to oppose one another, each of these one input two output type optical switches including a Y branch portion in which one optical waveguide is branched into two optical waveguides. And two refractive index adjustment means are provided in the vicinity of each Y branch portion. Switching over of the optical path is performed by half of the refractive index adjustment means functioning alternately. Moreover, a light output intensity variable attenuation function which attenuates by any desired amount the intensity of the light which is being outputted is implemented, at some input port and/or output port, by operating at least one of the refractive index adjustment means which is not currently being used for switching over of the optical path.

    摘要翻译： 这种两输入双输出型光开关包括相互相对配置的四个一输入二输出型光开关，这些一输入两输出型光开关分别包括一Y光分支部分，其中一个光波导分支成两个光 波导。 并且在每个Y分支部分附近设置两个折射率调节装置。 折射率调节装置的一半交替地进行光路的切换。 此外，通过操作折射率调节装置中的至少一个，在某些输入端口和/或输出端口处实现通过任何所需量衰减正在输出的光的强度的光输出强度可变衰减函数， 当前不用于切换光路。

    Optical switch
    3.
    发明授权
    Optical switch 有权
    光开关

    公开(公告)号：US06741775B2

    公开(公告)日：2004-05-25

    申请号：US09775841

    申请日：2001-02-01

    申请人： Ken Sakuma ,  Daigo Fujita ,  Toshisada Sekiguchi ,  Hideyuki Hosoya

    发明人： Ken Sakuma ,  Daigo Fujita ,  Toshisada Sekiguchi ,  Hideyuki Hosoya

    IPC分类号： G02B626

    CPC分类号： G02F1/3137 ,  G02F1/0147 ,  G02F1/065

    摘要： An optical switch operating on thermooptic effects has a branching section heater for heating a branching section of a core and a branched core heater for heating a branched core. The heaters are controlled separately so that the branching section and the branched core can be heated to respective temperatures so as to minimize insertion loss of inputted light and to prevent outputting light from a port not intended for light output.

    摘要翻译： 在光电效应上操作的光开关具有用于加热芯的分支部分的分支部分加热器和用于加热分支芯的分支芯加热器。 分别控制加热器，使得分支部分和分支芯可以被加热到各自的温度，以便使输入的光的插入损耗最小化并且防止从不用于光输出的端口输出光。

    Light emitting device and a lighting apparatus
    7.
    发明授权
    Light emitting device and a lighting apparatus 有权
    发光装置和照明装置

    公开(公告)号：US07608862B2

    公开(公告)日：2009-10-27

    申请号：US11067741

    申请日：2005-03-01

    申请人： Ken Sakuma ,  Koji Omichi ,  Naoto Hirosaki

    发明人： Ken Sakuma ,  Koji Omichi ,  Naoto Hirosaki

    IPC分类号： H01L27/15 ,  H01L29/24

    CPC分类号： H01L33/502 ,  C09K11/0883 ,  C09K11/7734 ,  H01L33/483 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2924/00014

    摘要： A light emitting device comprises at least two lead wires, a light emitting element that is disposed on an end portion of at least one of said lead wires and connected electrically with the end portion and the other lead wire, and a phosphor that absorbs at least part of the light emitted from said light emitting element and emanates light having different wavelengths from the wavelength of the light emitted from said light emitting element, wherein the excitation spectrum of said phosphor has a flat region in a wavelength range including a primary wavelength of the light from said light emitting element.

    摘要翻译： 发光装置包括至少两根引线，发光元件设置在至少一个所述引线的端部上并与端部和另一引线电连接，以及至少吸收至少一个的磷光体 从所述发光元件发射的光的一部分并且发射与从所述发光元件发射的光的波长不同的波长的光，其中所述磷光体的激发光谱具有波长范围内的平坦区域，所述波长范围包括 来自所述发光元件的光。

    Light emitting device and a lighting apparatus
    8.
    发明申请
    Light emitting device and a lighting apparatus 有权
    发光装置和照明装置

    公开(公告)号：US20050194604A1

    公开(公告)日：2005-09-08

    申请号：US11067741

    申请日：2005-03-01

    申请人： Ken Sakuma ,  Koji Omichi ,  Naoto Hirosaki

    发明人： Ken Sakuma ,  Koji Omichi ,  Naoto Hirosaki

    IPC分类号： C09K11/64 ,  H01L29/22 ,  H01L33/32 ,  H01L33/50 ,  H01L33/56 ,  H01L33/60 ,  H01L33/62

    CPC分类号： H01L33/502 ,  C09K11/0883 ,  C09K11/7734 ,  H01L33/483 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2924/00014

    摘要： A light emitting device comprises at least two lead wires, a light emitting element that is disposed on an end portion of at least one of said lead wires and connected electrically with the end portion and the other lead wire, and a phosphor that absorbs at least part of the light emitted from said light emitting element and emanates light having different wavelengths from the wavelength of the light emitted from said light emitting element, wherein the excitation spectrum of said phosphor has a flat region in a wavelength range including a primary wavelength of the light from said light emitting element.

    摘要翻译： 发光装置包括至少两根引线，发光元件设置在至少一个所述引线的端部上并与端部和另一引线电连接，以及至少吸收至少一个的磷光体 从所述发光元件发射的光的一部分并且发射与从所述发光元件发射的光的波长不同的波长的光，其中所述磷光体的激发光谱具有波长范围内的平坦区域，所述波长范围包括 来自所述发光元件的光。

    Optical waveguide in the interior of silica glass and method of forming optical waveguide
    9.
    发明授权
    Optical waveguide in the interior of silica glass and method of forming optical waveguide 失效
    石英玻璃内部的光波导和形成光波导的方法

    公开(公告)号：US06945078B2

    公开(公告)日：2005-09-20

    申请号：US10644827

    申请日：2003-08-21

    申请人： Takeshi Fukuda ,  Shimon Ishikawa ,  Tomoko Fujii ,  Ken Sakuma ,  Hideyuki Hosoya

    发明人： Takeshi Fukuda ,  Shimon Ishikawa ,  Tomoko Fujii ,  Ken Sakuma ,  Hideyuki Hosoya

    IPC分类号： B23K26/03 ,  B23K26/06 ,  C03C23/00 ,  G02B6/13 ,  C02B37/023 ,  G02B6/10 ,  C02B37/022

    CPC分类号： G02B6/13 ,  B23K26/032 ,  B23K26/0624 ,  C03C23/0025

    摘要： When an optical waveguide is formed by focused femtosecond laser pulses in a pure silica glass to induce a refractive index increase region, a pulse width of femtosecond laser pulses are changed, a peak power of femtosecond laser pulses at the focal point is changed, or both the pulse width and the peak power are changed simultaneously. Under conditions where a pulse width of the femtosecond laser pulses is in a range of 210 to 420 fs and a peak power at the focal point is not greater than 8.7×1011 W/cm2, an optical waveguide having a mode field of 10 to 14 μm such that an aspect ratio is 1 (one) can be obtained. By doing this, it is possible to control a mode field diameter of an optical waveguide and an aspect ratio of the mode field diameter.

    摘要翻译： 当通过在纯二氧化硅玻璃中的聚焦飞秒激光脉冲形成光波导以引起折射率增加区域时，飞秒激光脉冲的脉冲宽度改变，焦点处的飞秒激光脉冲的峰值功率改变，或两者都改变 脉冲宽度和峰值功率同时变化。 在飞秒激光脉冲的脉冲宽度在210至420fs的范围内且焦点处的峰值功率不大于8.7x10 11 / cm 2的条件下， / SUP>，具有10〜14μm的模场的光波导，使得可以获得纵横比为1（1）。 通过这样做，可以控制光波导的模场直径和模场直径的纵横比。

    Manufacturing method of planar optical waveguide device with grating structure
    10.
    发明授权
    Manufacturing method of planar optical waveguide device with grating structure 有权
    具有光栅结构的平面光波导器件的制造方法

    公开(公告)号：US08404133B2

    公开(公告)日：2013-03-26

    申请号：US12547115

    申请日：2009-08-25

    申请人： Ken Sakuma ,  Kensuke Ogawa ,  Kazuhiro Goi ,  Yong Tsong Tan ,  Ning Guan ,  Mingbin Yu ,  Hwee Gee Teo ,  Guo-Qiang Lo

    发明人： Ken Sakuma ,  Kensuke Ogawa ,  Kazuhiro Goi ,  Yong Tsong Tan ,  Ning Guan ,  Mingbin Yu ,  Hwee Gee Teo ,  Guo-Qiang Lo

    IPC分类号： C03C15/00

    CPC分类号： G02B6/124

    摘要： A method for manufacturing a planar optical waveguide device of which a core includes a plurality of alternatively arranged fin portions and valley portions to form a grating structure, in which the core widths of the valley portions vary along the longitudinal direction, the method including: a high refractive index material layer forming step of forming a high refractive index material layer; a photoresist layer forming step of forming a photoresist layer on the high refractive index material layer; a first exposure step of forming shaded portions on the photoresist layer using a phase-shifting photomask; a second exposure step of forming shaded portions on the photoresist layer using a binary photomask; a development step of developing the photoresist layer; and an etching step of etching the high refractive index material layer using the photoresist pattern resulted from the development step.

    摘要翻译： 一种平面光波导装置的制造方法，其特征在于，芯体具有多个交替设置的翅片部和谷部，以形成其中谷部的芯宽沿纵向变化的格栅结构，该方法包括： 形成高折射率材料层的高折射率材料层形成步骤; 在高折射率材料层上形成光致抗蚀剂层的光致抗蚀剂层形成步骤; 使用相移光掩模在光致抗蚀剂层上形成阴影部分的第一曝光步骤; 第二曝光步骤，使用二元光掩模在所述光致抗蚀剂层上形成阴影部分; 显影光致抗蚀剂层的显影步骤; 以及使用由显影步骤产生的光致抗蚀剂图案来蚀刻高折射率材料层的蚀刻步骤。