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    • 1. 发明授权
    • Optical wavelength routing device
    • 光波长路由设备
    • US06317534B1
    • 2001-11-13
    • US09215225
    • 1998-12-18
    • Tetsuya MiyazakiShu YamamotoKoichi MaruHisato Uetsuka
    • Tetsuya MiyazakiShu YamamotoKoichi MaruHisato Uetsuka
    • G02B628
    • G02B6/12011
    • An optical wavelength routing device comprises an arrayed waveguide comprising a plurality of channel waveguides formed on a substrate, a plurality of input waveguides having 12 input ports located on an input side of the arrayed waveguide, a plurality of output waveguides having 16 input ports located on an output side of the arrayed waveguide, an input slab waveguide for coupling the plurality of input waveguides to the arrayed waveguide to provide a first coupling portion on the side of the input waveguide, and an output slab waveguide for coupling the arrayed waveguide to the plurality of output waveguides to provide a second coupling portion on the side of the output waveguide, in which central wavelengths of lights input to the input ports and output from the output ports are controlled such that a difference between a predetermined wavelength and a central wavelength is suppressed within the range of +&dgr;&lgr;/4. By this structure, a maximum central wavelength difference can be suppressed at minimum.
    • 光波长路由设备包括阵列波导,其包括形成在衬底上的多个通道波导,多个输入波导,其具有位于阵列波导的输入侧上的12个输入端口,多个输出波导具有位于 阵列波导的输出侧,用于将多个输入波导耦合到阵列波导的输入平板波导,以在输入波导侧提供第一耦合部分,以及用于将阵列波导耦合到多个波导的输出平板波导 的输出波导,以在输出波导侧提供第二耦合部分,其中输入到输入端口的光的中心波长和从输出端口输出被控制,使得预定波长和中心波长之间的差被抑制 在+ deltalambd / 4的范围内。 通过这种结构,最大限度地抑制最大中心波长差。
    • 3. 发明授权
    • Optical wavelength multiplexer/demultiplexer
    • 光波长多路复用器/解复用器
    • US06549696B1
    • 2003-04-15
    • US09634581
    • 2000-08-08
    • Hisato UetsukaMasahiro OkawaKoichi MaruHideki NounenTatsuo Teraoka
    • Hisato UetsukaMasahiro OkawaKoichi MaruHideki NounenTatsuo Teraoka
    • G02B628
    • G02B6/12014G02B6/12016G02B6/12028G02B6/1203G02B6/12033G02B2006/12195
    • An optical wavelength multiplexer/demultiplexer includes a substrate, an input channel waveguide, an input slab waveguide, a channel waveguide array which has a plurality of channel waveguides, each channel waveguide differing in length from its neighboring waveguide by predetermined amount, an output slab waveguide, and a plurality of output channel waveguides. The input slab waveguide or output slab waveguide have a temperature compensation material, in its light path, having an opposite sign of diffraction temperature change to the plurality of channel wave guides, or a material capable of canceling a change in the in-phase plane of light having each wavelength which occurs in a vicinity of the channel waveguide array and the slab waveguide, or a waveguide for band width adjustment on which a waveguide to adjust band width of wavelength multiplexing light is provided.
    • 光波长多路复用器/解复用器包括:基板,输入通道波导,输入平板波导,具有多个通道波导的通道波导阵列,每个通道波导的长度与其相邻波导的长度不同,输出平板波导 ,以及多个输出通道波导。 输入平板波导或输出平板波导具有温度补偿材料,在其光路中具有与多个通道波导的衍射温度变化相反的符号,或者能够消除同相平面内的变化的材料 在通道波导阵列和平板波导附近发生波长的光,或波导复用光的带宽调整波导的带宽调整波导。
    • 4. 发明授权
    • Optical wavelength multiplexer/demultiplexer
    • 光波长多路复用器/解复用器
    • US6069990A
    • 2000-05-30
    • US89418
    • 1998-06-03
    • Masahiro OkawaHisato UetsukaHideaki AraiKoichi Maru
    • Masahiro OkawaHisato UetsukaHideaki AraiKoichi Maru
    • G02B6/12G02B6/34H04J14/02
    • G02B6/12016G02B2006/12195
    • An optical wavelength multiplexer/demultiplexer, comprising: a substrate: and, provided thereon, input waveguides, output waveguides, an array waveguide diffraction grating comprising a plurality of waveguides with a predetermined difference in length being provided between the waveguides, an input slab waveguide for connecting the input waveguides to the array waveguide diffraction grating, an output slab waveguide for connecting the output waveguides to the array waveguide diffraction grating, and multimode waveguides, for example, tapered waveguides and parabolic waveguides, provided in a connecting section between the input waveguides and the input slab waveguide. The output slab waveguide may have a smaller radius than the input slab waveguide to narrow the width of the electric field distribution on the output side. The above construction can bring wavelength characteristics to a rectangular form to broaden the transmission band and at the same time can reduce the loss.
    • 一种光学波长多路复用器/解复用器,包括:衬底,并且在其上提供输入波导,输出波导,包括在波导之间设置有预定长度差的多个波导的阵列波导衍射光栅,用于 将输入波导连接到阵列波导衍射光栅,用于将输出波导连接到阵列波导衍射光栅的输出平板波导,以及设置在输入波导和输入波导之间的连接部分中的多模波导,例如锥形波导和抛物面波导 输入平板波导。 输出平板波导可以具有比输入平板波导更小的半径,以使输出侧的电场分布的宽度变窄。 上述结构可以将波长特性带入矩形形式以扩​​大传输带,同时可以减少损耗。
    • 6. 发明授权
    • Optical device formed with grating therein, add/drop filter using same,
and method of fabricating same
    • 在其中形成有光栅的光学器件,使用其的加/减滤光器及其制造方法
    • US5848207A
    • 1998-12-08
    • US703629
    • 1996-08-29
    • Hisato UetsukaHideaki Arai
    • Hisato UetsukaHideaki Arai
    • G02B6/34
    • G02B6/12007G02B6/02085G02B6/02138G02B6/124G02B6/29352G02B6/29383G02B6/021G02B6/02152
    • A width of a core in an optical waveguide is decreased in accordance with a value of a predetermined equation, as a distance of a position of the core to the center position thereof is decreased. Consequently, a rectangular spectrum property having no ripple is obtained on a lower wavelength side in a reflection grating. In addition, the width of the core is changed at the position Z in the direction of light propagation, while a UV light is radiated to the core, so that a periodically striated distribution of refractive indices having an envelope which is changed in accordance with a value of ".vertline.sin(C.multidot.Z).vertline./.vertline.C.multidot.Z.vertline." is formed in the core of the optical waveguide, and a phase of a light to be propagated in the direction of the light propagation is shifted at the position Z as defined below by .pi.. Z=m.pi./C(m=. . . ,-3,-2,-1,1,2,3, . . ) Thus, a rectangular spectrum property is obtained in a low reflection grating.
    • 随着芯的位置与其中心位置的距离减小,光波导中的芯的宽度根据预定方程的值减小。 因此,在反射光栅中的较低波长侧获得无纹波的矩形光谱特性。 此外,在光传播方向上的位置Z处的芯的宽度被改变,同时将紫外光照射到芯,使得具有根据一个或更多个变化的包络线的折射率的周期性条纹分布 “| sin(CxZ)| / | CxZ |”的值 形成在光波导的芯中,并且在光传播方向上传播的光的相位在如下定义的位置Z处偏移pi。 Z = m pi / C(m = ...,-3,-2,-1,1,2,3,...)因此,在低反射光栅中获得矩形光谱特性。
    • 7. 发明授权
    • Optical waveguide-type wavelength domain switch
    • 光波导型波长域开关
    • US08229258B2
    • 2012-07-24
    • US12585516
    • 2009-09-16
    • Hiroshi IshikawaToshifumi HasamaHitoshi KawashimaKenji KintakaMasahiko MoriHisato UetsukaHiroyuki TsudaKeisuke Sorimoto
    • Hiroshi IshikawaToshifumi HasamaHitoshi KawashimaKenji KintakaMasahiko MoriHisato UetsukaHiroyuki TsudaKeisuke Sorimoto
    • G02B6/26G02F2/00H04J14/00
    • G02F1/31G02B6/12014G02B6/12016G02B6/12021G02B6/2713G02B6/2793G02B6/30G02B6/3548G02B6/356G02F2203/58G02F2203/585
    • An optical waveguide-type wavelength domain switch includes a waveguide-type multi/demultiplexing device laminate comprising three or more laminated waveguide-type multi/demultiplexing devices, a lens system positioned on a demultiplex side of the waveguide-type multi/demultiplexing device laminate, and a reflective optical phase-modulating cell positioned on an opposite side of the waveguide-type multi/demultiplexing device laminate to the lens system. The lens system includes a lens alignment composed of plural lenses in one-to-one correspondence with the waveguide-type multi/demultiplexing devices and having a light-collecting or collimating function in the lens-aligning direction, an image-magnifying optical system having an N:1 (N>1) image-magnifying function arranged on the optical phase-modulating cell side of the lens alignment, an f-f lens (Y) arranged on the optical phase-modulating cell side of the image-magnifying optical system, and having a light-collecting or collimating function in the same direction as the lens-aligning direction of the lens alignment, and an f-f lens (X) having a light-collecting or collimating function in a perpendicular direction to the lens-aligning direction of the lens alignment.
    • 光波导型波长域开关包括:波导型多路解复用器件层叠体,其包含三个或更多个层叠波导型多路解复用器件,位于波导型多路解复用器件层叠体的解复用侧的透镜系统, 以及反射光学相位调制单元,其位于与所述透镜系统的所述波导型多路解复用器件层叠体的相反侧。 透镜系统包括由多个透镜组成的透镜对准,与波导型多路/多路分离装置一一对应,并且在透镜对准方向上具有聚光或准直功能,图像放大光学系统具有 配置在透镜对准的光学相位调制单元侧的N:1(N> 1)图像放大功能,配置在图像放大光学系统的光学相位调制单元侧的ff透镜(Y) 并且在与透镜对准方向的透镜对准方向相同的方向上具有聚光或准直功能,以及在与透镜对准方向垂直的方向上具有聚光或准直功能的ff透镜(X) 镜头对准。
    • 8. 发明申请
    • WAVELENGTH DOMAIN OPTICAL SWITCH
    • 波长域光开关
    • US20110182545A1
    • 2011-07-28
    • US13014151
    • 2011-01-26
    • Hiroshi IshikawaToshifumi HasamaHitoshi KawashimaKenji KintakaMasahiko MoriHisato UetsukaHiroyuki TsudaKeisuke Sorimoto
    • Hiroshi IshikawaToshifumi HasamaHitoshi KawashimaKenji KintakaMasahiko MoriHisato UetsukaHiroyuki TsudaKeisuke Sorimoto
    • G02B6/26
    • G02B6/2773G02B6/12021G02B6/3594G02F1/313
    • To provide a waveguide type wavelength domain optical switch which makes it possible to use a cheap lens, makes it possible to correct aberration of the demultiplexed wavelengths produced in a plurality of waveguide type demultiplexing circuits, a wavelength domain optical switch is provided with: an integrated element formed by laminating three or more waveguide type demultiplexing circuits; a first lens for collecting light emitted from the integrated element; a polarization separation element for separating light emitted from the first lens into X polarization and Y polarization and emitting the X polarization and the Y polarization at different angles; a second lens for collecting the X polarization and the Y polarization; a first reflective optical phase modulator for reflecting the collected X polarization and Y polarization at any angles; a ½-wavelength plate disposed between the second lens and the first reflective optical phase modulator in order to make polarization directions of the X polarization and the Y polarization identical; and a second reflective optical phase modulator for inputting light from the first reflective optical phase modulator into one of the waveguide type demultiplexing circuits.
    • 为了提供使得可以使用廉价透镜的波导型波长域光开关,可以校正在多个波导型解复用电路中产生的解复用波长的像差,波长域光开关具有:集成 通过层叠三个或更多个波导型解复用电路形成的元件; 用于收集从所述集成元件发射的光的第一透镜; 用于将从第一透镜发射的光分离成X偏振和Y偏振并以不同角度发射X偏振和Y偏振的偏振分离元件; 用于收集X偏振和Y偏振的第二透镜; 用于以任何角度反射所收集的X偏振和Y偏振的第一反射光学相位调制器; 设置在第二透镜和第一反射光学相位调制器之间的1/2波长板,以使X偏振和Y偏振的偏振方向相同; 以及第二反射光学相位调制器,用于将来自第一反射型光学相位调制器的光输入波导型解复用电路之一。