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1. 发明授权

US4542957A Plastics optical fibers 失效
标题翻译：塑料光纤
公开(公告)号：US4542957A
公开(公告)日：1985-09-24
申请号：US522260
申请日：1983-08-11
申请人： Kazuo Ishiwari , Akira Ohmori , Nobuyuki Tomihashi , Sumiko Yuhara , Toshikuni Kaino , Kaname Jinguji , Shigeo Nara
发明人： Kazuo Ishiwari , Akira Ohmori , Nobuyuki Tomihashi , Sumiko Yuhara , Toshikuni Kaino , Kaname Jinguji , Shigeo Nara
IPC分类号： C08L27/14 , B29C47/00 , B29D11/00 , C08L1/00 , C08L27/00 , C08L33/00 , C08L33/02 , D01F8/10 , G02B6/00
CPC分类号： D01F8/10 , B29D11/00663 , B29C47/00 , B29C47/0014
摘要： Plastic optical fibers comprising as a core component a polymer predominantly containing methyl methacrylate and as a cladding component a copolymer lower in the refractive index than the core component, the plastics optical fibers being characterized by performing conjugate spinning with use of the cladding component which is vinylidene fluoride-tetrafluorethylene copolymer having incorporated therein 5 to 50% by weight of a polymer predominantly containing methyl methacrylate.
摘要翻译：塑料光纤包含主要含有甲基丙烯酸甲酯的聚合物和作为包层成分的折射率低于核心组分的共聚物的聚合物，塑料光纤的特征在于通过使用作为亚乙烯基的包层组分进行共轭纺丝氟化四氟乙烯共聚物，其中加入了主要含有甲基丙烯酸甲酯的聚合物的5-50重量％。

2. 发明授权

US06606433B2 Optical multi/demultiplexer 失效
公开(公告)号：US06606433B2
公开(公告)日：2003-08-12
申请号：US09892939
申请日：2001-06-27
申请人： Manabu Oguma , Akira Himeno , Kaname Jinguji , Tsutomu Kitoh , Yoshinori Hibino
发明人： Manabu Oguma , Akira Himeno , Kaname Jinguji , Tsutomu Kitoh , Yoshinori Hibino
IPC分类号： G02B634
CPC分类号： G02B6/12021 , G02B6/29355 , G02B6/2938 , G02F1/0147 , H04J14/02
摘要： An optical multi/demultiplexer is provided that has a wide passband and small crosstalk among its all channels. It includes first and second arrayed waveguide gratings and a 2×2 optical signal processor. The 2×2 optical signal processor includes first to fourth directional couplers, and first to third delay lines. The first to third delay lines have thin film heater phase shifters for correcting phase errors involved in fabrication. Utilizing the 2×2 optical signal processor having a transmission spectrum with a square profile having a wide passband and rejection band makes it possible for the optical multi/demultiplexer that combines the arrayed waveguide gratings with the waveguide type circulating filter (2×2 optical signal processor) to widen the extinction bandwidth of the adjacent channel.

3. 发明授权

US06173433B2 Circuit design system, image processing method and medium of the circuit design system 失效
标题翻译：电路设计系统，图像处理方法和电路设计系统的介质
公开(公告)号：US06173433B2
公开(公告)日：2001-01-09
申请号：US08940123
申请日：1997-09-29
申请人： Katsumi Katoh , Kaname Jinguji
发明人： Katsumi Katoh , Kaname Jinguji
IPC分类号： G06F1750
CPC分类号： G02B6/12004 , G02B2006/12119 , G02B2006/12147 , G02B2006/12159 , G06F17/5068
摘要： The present invention enables waveguides to be simply laid out, wherein the correlationship between a curvilinear graphic connecting two points together and the positions of these two points is specified beforehand and stored in a RAM in the form of rule of virtual path generation, when a mouse is used to specify the connection terminals of two blocks on a display screen, a CPU receives an instruction for generation of virtual paths, and the CPU then references the rule of virtual path generation to automatically generate a virtual path connecting the connection terminals of the two blocks and to draw it on the display screen.
摘要翻译：本发明使得能够简单地布置波导，其中，连接两个点的曲线图和这两个点的位置之间的相关性被预先指定并以虚拟路径生成规则的形式存储在RAM中，当鼠标用于指定显示屏幕上两个块的连接终端，CPU接收到用于生成虚拟路径的指令，然后CPU参考虚拟路径生成规则，以自动生成连接两个连接终端的虚拟路径并将其画在显示屏上。

4. 发明授权

US5165001A Guided-wave optical branching device 失效
标题翻译：导波光分路器
公开(公告)号：US5165001A
公开(公告)日：1992-11-17
申请号：US685131
申请日：1991-04-15
申请人： Akihiro Takagi , Masao Kawachi , Kaname Jinguji
发明人： Akihiro Takagi , Masao Kawachi , Kaname Jinguji
IPC分类号： G02B6/122 , G02B6/125 , G02B6/28 , G02B6/34
CPC分类号： G02B6/2821 , G02B6/125
摘要： A guided-wave optical branching device having optical waveguides disposed on a substrate. The waveguides are partially arranged to be close to each other to form a tapered directional coupler in which the waveguides are point symmetrical or line symmetrical. Alternatively, the waveguides are neither line symmetrical nor point symmetrical. The tapered directional coupler reduces the wavelength dependence of the coupling ratio of the output power derived from the branching device. The widths of the waveguides in the parallel coupling region, the length of the coupling region in the symmetrical or asymmetrical directional coupler, the asymmetrical parameters or the like are set at values determined in accordance with the wavelength range used, so that the wavelength dependence of the coupling ratio of the power between the input port and the output port is reduced in a desired wavelength range, for example, 1.2 .mu.m-1.8 .mu.m.
摘要翻译：一种具有设置在基板上的光波导的导波光分支装置。波导部分地布置成彼此靠近以形成锥形定向耦合器，其中波导是点对称或线对称的。或者，波导既不是线对称的，也不是点对称的。锥形定向耦合器降低了从分支器件导出的输出功率的耦合比的波长依赖性。平行耦合区域中的波导的宽度，对称或非对称定向耦合器中的耦合区域的长度，不对称参数等被设置为根据所使用的波长范围确定的值，使得波长依赖性输入端口和输出端口之间的功率的耦合比在期望的波长范围内减小，例如为1.2μm-1.8μm。

5. 发明授权

US5572611A Optical signal processor, method of its control, method of its designing, and method of its production 失效
标题翻译：光信号处理器，其控制方法，设计方法及其生产方法
公开(公告)号：US5572611A
公开(公告)日：1996-11-05
申请号：US262248
申请日：1994-06-20
申请人： Kaname Jinguji , Masao Kawachi , Koichi Takiguchi
发明人： Kaname Jinguji , Masao Kawachi , Koichi Takiguchi
IPC分类号： G02B6/12 , G02B6/132 , G02B6/136 , G02B6/28 , G02B6/34 , G02F1/225 , G06E3/00 , G02B6/26 , G02B6/42
CPC分类号： G02B6/12007 , G02B6/132 , G02B6/136 , G02B6/2861 , G02F1/225 , G06E3/003 , G02B2006/12159 , G02B6/29355 , G02B6/29394
摘要： An optical signal processor according to the present invention is an optical circuit of a lattice configuration. Its basic circuit structure comprises 3 dB directional couplers, two optical waveguides with equal optical path lengths, and two optical waveguides with different optical path lengths (an optical path difference of about 1 to 50 mm). Phase controllers for performing phase shift are provided on the optical waveguides. The portions with equal optical path lengths function as variable directional couplers, and variable directional couplers having arbitrary coupling rates can be constructed by changing the phase controllers on the optical waveguides with equal optical path lengths. As for an adaptive filter, there is adopted a construction in which a photodetector for withdrawing part of output is provided at the output port, and a feedback electric wiring for feedback control is laid.
摘要翻译：根据本发明的光信号处理器是格构构的光电路。其基本电路结构包括3dB定向耦合器，具有相同光程长度的两个光波导和具有不同光程长度（约1至50mm的光程差）的两个光波导。在光波导上提供用于执行相移的相位控制器。具有相同光程长度的部分用作可变定向耦合器，并且可以通过以相同的光程长度改变光波导上的相位控制器来构造具有任意耦合速率的可变方向耦合器。对于自适应滤波器，采用在输出端口设置用于取出输出部分的光电检测器的结构，并且布置用于反馈控制的反馈电线。

6. 发明授权

US5044715A Guided-wave optical branching components and optical switches 失效
标题翻译：导波光分路器件和光开关
公开(公告)号：US5044715A
公开(公告)日：1991-09-03
申请号：US475435
申请日：1990-02-05
申请人： Masao Kawachi , Kaname Jinguji , Norio Takato , Akihiro Takagi
发明人： Masao Kawachi , Kaname Jinguji , Norio Takato , Akihiro Takagi
IPC分类号： G02B6/12 , G02B6/28 , G02B6/34 , G02F1/313
CPC分类号： G02B6/12007 , G02B6/12004 , G02B6/2804 , G02B6/2856 , G02F1/3136 , G02B2006/2865 , G02B6/29355 , G02B6/29395
摘要： A guided-wave optical branching component is composed of a Mach-Zehnder interferometer having two or more directional couplers. A slight difference .DELTA.L in the optical-path length is provided in two or more optical waveguides connecting the two or more directional couplers. The difference of the optical-path length is less than the shortest wavelength in the operational wavelength region of the guided-wave optical branching component, and the coupling ratio of each of the two directional couplers monotonically increases with wavelength in the operational wavelength region. By using the optical branching components thus constructed (i.e., Mach-Zehnder interferometer type 3-dB optical coupler) in conjunction with a phase shifter, a Mach-Zehnder interferometer type optical switch can be achieved.

7. 发明授权

US4978188A Integrated optical device and method for manufacturing thereof 失效
公开(公告)号：US4978188A
公开(公告)日：1990-12-18
申请号：US421400
申请日：1989-10-13
申请人： Masao Kawachi , Norio Takato , Kaname Jinguji , Akio Sugita , Shin Sumida
发明人： Masao Kawachi , Norio Takato , Kaname Jinguji , Akio Sugita , Shin Sumida
IPC分类号： G02B6/122 , G02B6/10 , G02B6/12 , G02B6/126 , G02B6/13 , G02B6/14 , G02B6/34 , G02F1/01
CPC分类号： G02B6/12007 , G02B6/105 , G02B6/126 , G02B6/13 , G02B6/29353
摘要： An integrated optical device includes a substrate; a single-mode optical waveguide having a cladding layer disposed on the substrate and a core portion embedded in the cladding layer for transmitting light therethrough; and a stress applying film disposed on a desired portion of the cladding layer for adjusting stress-induced birefringence of the single-mode optical waveguide by irreversibly changing the stress exerted on the core portion by a trimming technique. The integrated optical device can be manufactured by the steps of forming a cladding layer on a substrate; forming a single-mode optical waveguide having a core portion embedded in the cladding layer for transmitting light therethrough; and forming, on the cladding layer, a stress applying film for exerting a stress on the single-mode optical waveguide to irreversibly change the stress by trimming the film. The device exhibits a precisely adjusted birefringence and a desired polarization dependence or independence, and is effective for constructing an integrated optical device for optical communication, for optical sensing or for optical signal processing, in which the polarization characteristics play an important role.

8. 发明授权

US06735358B2 Optical multiplexer and optical demultiplexer 失效
标题翻译：光复用器和光解复用器
公开(公告)号：US06735358B2
公开(公告)日：2004-05-11
申请号：US10067065
申请日：2002-02-04
申请人： Tsutomu Kitoh , Yasuyuki Inoue , Manabu Oguma , Yoshinori Hibino , Kaname Jinguji
发明人： Tsutomu Kitoh , Yasuyuki Inoue , Manabu Oguma , Yoshinori Hibino , Kaname Jinguji
IPC分类号： G02B628
CPC分类号： G02B6/2938 , G02B6/12007 , G02B6/29355 , G02B6/29394 , G02B2006/12159 , H04J14/02
摘要： The present invention provides an optical demultiplexer and an optical multiplexer the transmission characteristics of which are unlikely to be affected by fabrication errors and which have small group delay dispersion. A cross output port (X-OUT) of a second optical demultiplexer element (DEMUX) is selected, and a through output port (T-OUT) of a third DEMUX is selected. A T-OUT of a first DEMUX has a passband equal to the X-OUT of the second DEMUX, and a X-OUT of the first DEMUX has a passband equal to the T-OUT of the third DEMUX. The T-OUT of the first DEMUX has group delay characteristics opposite to those of the X-OUT of the second DEMUX, and the X-OUT of the first DEMUX has group delay characteristics opposite to those of the T-OUT of the third DEMUX.
摘要翻译：本发明提供一种光解复用器和光复用器，其传输特性不太可能受制造误差的影响，并且具有较小的组延迟色散。选择第二光解复用器元件（DEMUX）的交叉输出端口（X-OUT），并且选择第三DEMUX的直通输出端口（T-OUT）。第一DEMUX的T-OUT具有等于第二DEMUX的X-OUT的通带，并且第一DEMUX的X-OUT具有等于第三DEMUX的T-OUT的通带。第一DEMUX的T-OUT具有与第二DEMUX的X-OUT相反的组延迟特性，并且第一DEMUX的X-OUT具有与第三DEMUX的T-OUT相反的组延迟特性。

9. 发明授权

US4900112A Integrated optical device and method for manufacturing thereof 失效
标题翻译：集成光学装置及其制造方法
公开(公告)号：US4900112A
公开(公告)日：1990-02-13
申请号：US211556
申请日：1988-06-24
申请人： Masao Kawachi , Norio Takato , Kaname Jinguji , Akio Sugita , Shin Sumida
发明人： Masao Kawachi , Norio Takato , Kaname Jinguji , Akio Sugita , Shin Sumida
IPC分类号： G02B6/122 , G02B6/10 , G02B6/12 , G02B6/126 , G02B6/13 , G02B6/14 , G02B6/34 , G02F1/01
CPC分类号： G02B6/12007 , G02B6/105 , G02B6/126 , G02B6/13 , G02B6/29353
摘要： An integrated optical device includes a substrate; a single-mode optical waveguide having a cladding layer disposed on the substrate and a core portion embedded in the cladding layer for transmitting light therethrough; and a stress applying film disposed on a desired portion of the cladding layer for adjusting stress-induced birefringence of the single-mode optical waveguide by irreversibly changing the stress exerted on the core portion by a trimming technique. The integrated optical device can be manufactured by the steps of forming a cladding layer on a substrate; forming a single-mode optical waveguide having a core portion embedded in the cladding layer for transmitting light therethrough; and forming, on the cladding layer, a stress applying film for exerting a stress on the single-mode optical waveguide to irreversibly change the stress by trimming the film. The device exhibits a precisely adjusted birefringence and a desired polarization dependence or independence, and is effective for constructing an integrated optical device for optical communication, for optical sensing, or for optical signal processing, in which the polarization characteristics play an important role.

10. 发明授权

US4781424A Single mode channel optical waveguide with a stress-induced birefringence control region 失效
标题翻译：具有应力诱导双折射控制区域的单模通道光波导
公开(公告)号：US4781424A
公开(公告)日：1988-11-01
申请号：US49387
申请日：1987-05-13
申请人： Masao Kawachi , Kaname Jinguji , Norio Takato , Mitsuho Yasu , Katsunari Okamoto
发明人： Masao Kawachi , Kaname Jinguji , Norio Takato , Mitsuho Yasu , Katsunari Okamoto
IPC分类号： G02B6/126 , G02F1/01 , G02F1/21 , G02F1/313 , G02B5/14
CPC分类号： G02B6/126 , G02F1/0134 , G02F1/0147 , G02F1/3136 , G02F2001/212
摘要： In a single mode optical waveguide having a substrate, a cladding layer formed on the substrate, a core portion embedded in the cladding layer, and an elongated member for applying a stress to the core portion or a stress relief groove for relieving a stress from the core portion in the cladding layer along the core portion. The position, shape and material of the elongated member or the groove are determined in such a way that stress-induced birefringence produced in the core portion in accordance with a difference in thermal expansion coefficient between the substrate and the single mode optical waveguide is a desired value.
摘要翻译：在具有基板的单模光波导中，形成在基板上的包覆层，嵌入包覆层中的芯部以及用于向芯部施加应力的细长部件或用于缓解来自芯部的应力释放槽沿芯部的包层的芯部。细长构件或凹槽的位置，形状和材料以这样的方式确定，即根据衬底和单模光波导之间的热膨胀系数的差异在芯部中产生的应力引起的双折射是期望的值。

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