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    • 2. 发明授权
    • Glass wave guide element and method of manufacturing the same
    • 玻璃波导元件及其制造方法
    • US6093334A
    • 2000-07-25
    • US441681
    • 1999-11-17
    • Ryoji SuzukiHisato UetsukaDai KobayashiHideaki AraiKorenori Tamura
    • Ryoji SuzukiHisato UetsukaDai KobayashiHideaki AraiKorenori Tamura
    • G02B6/13G02B6/12G02F1/01C03C23/00B29B11/00G02B6/10
    • G02F1/011G02B2006/12107G02F1/0147G02F2001/0113G02F2201/30G02F2201/307
    • A glass wave guide element, which is small in size and amenable to integration and mass-production, and a method of manufacturing the glass wave guide element are provided. The glass wave guide element includes a core having a diffraction grating formed on an under cladding, an over cladding covering the core and a heater for changing the Bragg wavelength of the diffraction grating, the heater being arranged on the over cladding. The core and a central portion of both claddings in a surrounding portion around the core are formed in a state of being continuously separated along a longitudinal direction of the core from the substrate through a gap, and the core and the surrounding portion around the core are formed in a state of being spatially intermittently separated in a width direction of the core from a surrounding portion of both claddings through a gap. The wave guide is formed by etching to form gaps spaced intermittently along both sides of a core with under cladding and over cladding, and then removing a patterned silicon film from underneath the core.
    • 本发明提供一种玻璃波导元件,其尺寸小,易于集成和批量生产,以及制造玻璃波导元件的方法。 玻璃波导元件包括具有形成在下包层上的衍射光栅的芯,覆盖芯的上包层和用于改变衍射光栅的布拉格波长的加热器,加热器布置在外包层上。 在围绕芯部的周围部分中的两个包层的芯部和中心部分形成为沿芯部的纵向方向通过间隙从基板连续分离的状态,并且芯部和芯周围的周围部分是 形成在通过间隙在两个包层的周围部分沿着芯的宽度方向在空间上间歇地分离的状态。 通过蚀刻形成波导,以形成沿着具有下包层和外包层的芯的两侧间歇间隔的间隙,然后从芯下方去除图案化的硅膜。
    • 4. 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。
    • 5. 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
    • US5832154A
    • 1998-11-03
    • US953997
    • 1997-10-20
    • 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。
    • 6. 发明授权
    • Optical multiplexer/demultiplexer
    • 光复用器/解复用器
    • US06724954B2
    • 2004-04-20
    • US09796536
    • 2001-03-02
    • Hideaki AraiTakafumi ChibaHisato Uetsuka
    • Hideaki AraiTakafumi ChibaHisato Uetsuka
    • G02B628
    • G02B6/29355G02B6/12007G02B6/2938
    • In an optical multiplexer/demultiplexer comprising optical multiplexer/demultiplexer circuits connected in multistage, the optical multiplexer/demultiplexer circuits each have two input ports and two output ports, an optical path, through which input optical signals with predetermined wavelengths are output after multiplexing and demultiplexing, varies depending upon the input port; the optical paths in each of the optical multiplexer/demultiplexer circuits have mutually opposite wavelength dispersion characteristics, and one of the optical paths in a first optical multiplexer/demultiplexer circuit is connected to one of the optical paths, in a second optical multiplexer/demultiplexer circuit, having wavelength dispersion characteristics opposite to the optical path in the first optical multiplexer/demultiplexer circuit. By virtue of this construction, an optical multiplexer/demultiplexer can be realized which causes no significant wavelength dispersion and, at the same time, has excellent wavelength flatness characteristics in passband.
    • 在包括以多级连接的光复用器/解复用器电路的光复用器/解复用器中,光复用器/解复用器电路各具有两个输入端口和两个输出端口,光路经过多路复用和解复用后输出具有预定波长的输入光信号 ,取决于输入端口; 每个光复用器/多路分离器电路中的光路具有相互相反的波长色散特性,并且在第二光复用器/解复用器电路中,第一光复用器/解复用器电路中的一个光路连接到光路之一 具有与第一光复用器/解复用器电路中的光路相反的波长色散特性。 凭借这种结构,可以实现不产生显着的波长色散的光复用器/解复用器,同时在通带中具有优良的波长平坦度特性。
    • 9. 发明授权
    • Waveguide-type optical multiplexer/demultiplexer
    • 波导型光复用器/解复用器
    • US06947631B2
    • 2005-09-20
    • US10291064
    • 2002-11-08
    • Hideaki AraiTakafumi ChibaHisato UetsukaMasahiro Hikage
    • Hideaki AraiTakafumi ChibaHisato UetsukaMasahiro Hikage
    • G02B6/12G02B6/34H04J14/02G02B6/28G02B6/26G02B6/42
    • G02B6/2938G02B6/12004G02B6/29355G02B2006/12159H04J14/02
    • A waveguide-type optical multiplexer/demultiplexer with low crosstalk characteristics and reduced wavelength dispersion is provided. A waveguide-type optical multiplexer/demultiplexer comprising, first, second and third optical multiplexer/demultiplexer circuits connected in multistage, each multiplexer/demultiplexer circuit has four input-output ports, third input-output port of first optical multiplexer/demultiplexer circuit is connected to third input-output port of second optical multiplexer/demultiplexer circuit, and fourth input-output port of first optical multiplexer/demultiplexer circuit is connected to fourth input-output port of third optical multiplexer/demultiplexer circuit, when wavelength division multiplex signals having wavelength λ1, λ2, λ3, λ4, λ5, λ6 . . . are input through first input-output port of first optical multiplexer/demultiplexer circuit, multiplex signals of odd wavelength λ1, λ3, λ5 . . . are output from first input-output port of second optical multiplexer/demultiplexer circuit, and multiplex signals of even wavelength λ2, λ4, λ6 . . . are output from first input-output port of third optical multiplexer/demultiplexer circuit.
    • 提供具有低串扰特性和降低的波长色散的波导型光信号多路复用器/解复用器。 一种波导型光复用器/解复用器,包括以多级连接的第一,第二和第三光复用器/解复用器电路,每个多路复用器/解复用器电路具有四个输入输出端口,第一光复用器/解复用器电路的第三输入 - 输出端口被连接 到第三光复用器/解复用器电路的第三输入输出端口,第三光复用器/解复用器电路的第四输入输出端口连接到第三光复用器/解复用器电路的第四输入 - 输出端口,当具有波长 λ1,λ2,λ3,λ4,λ5, λ6。 。 。 通过第一光复用器/解复用器电路的第一输入 - 输出端口输入,奇数波长λ1,λ3,λ5, 。 。 。 从第二光复用器/解复用器电路的第一输入 - 输出端口输出,以及偶数波长λ2,λ4,λ6的多路复用信号 >。 。 。 从第三光复用器/解复用器电路的第一输入 - 输出端口输出。
    • 10. 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。