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1. 发明授权

US06892003B2 Variable dispersion compensator and optical transmission system 有权
标题翻译：可变色散补偿器和光传输系统
公开(公告)号：US06892003B2
公开(公告)日：2005-05-10
申请号：US10114321
申请日：2002-04-03
申请人： Makoto Katayama , Toshiaki Okuno , Masayuki Nishimura , Tomomi Sano , Masakazu Shigehara , Hiroshi Suganuma , Toru Iwashima , Tomohiko Kanie
发明人： Makoto Katayama , Toshiaki Okuno , Masayuki Nishimura , Tomomi Sano , Masakazu Shigehara , Hiroshi Suganuma , Toru Iwashima , Tomohiko Kanie
IPC分类号： H04B10/18 , G02B6/26 , G02B6/35 , H04J14/02
CPC分类号： H04B10/25133
摘要： An optical signal, which is to become the subject of dispersion compensation, is split by optical combining/splitting unit 2, and each frequency component of the optical signal that is split is reflected by the corresponding reflective mirror 30 included in reflective mirror group 3 to apply a predetermined phase shift to the respective frequency components Each reflected frequency component is then combined using optical combining/splitting unit 2, to give dispersion compensated optical signal Furthermore, in regards to reflective mirror group 3, which is used to apply phase shift to each frequency component of an optical signal, each of the respective plurality of reflective mirrors 30 is made a movable mirror having a movable reflection position that reflects the frequency components. Through this, dispersion that develops in an optical signal may be compensated with favorable controllability and high accuracy. Therefore, the precision and controllability of dispersion compensation will become superior, and realized is a variable dispersion compensator having a miniaturized optical circuit, and an optical transmission system comprising such variable dispersion compensator,
摘要翻译：要成为色散补偿的对象的光信号被光学合成/分离单元2分离，并且被分离的光信号的每个频率分量被包括在反射镜组3中的相应的反射镜30反射到对相应的频率分量施加预定的相移。然后使用光学合成/分离单元2组合每个反射频率分量，以产生色散补偿的光信号。此外，关于反射镜组3，其用于将相移施加到每个光信号的频率分量，各个反射镜30中的每一个被制成具有反映频率分量的可移动反射位置的可移动反射镜。由此，可以以良好的可控性和高精度补偿在光信号中产生的色散。因此，色散补偿的精度和可控性将变得更好，并且实现了具有小型化光电路的可变色散补偿器和包括这种可变色散补偿器的光传输系统，

2. 发明授权

US06801683B2 Optical module, light divider/insertor and light transmission device 有权
标题翻译：光模块，分光片/插件和光传输装置
公开(公告)号：US06801683B2
公开(公告)日：2004-10-05
申请号：US10331493
申请日：2002-12-31
申请人： Tomohiko Kanie , Makoto Katayama , Hiroshi Suganuma , Masayuki Nishimura
发明人： Tomohiko Kanie , Makoto Katayama , Hiroshi Suganuma , Masayuki Nishimura
IPC分类号： G02B635
CPC分类号： G02B6/3596 , G02B6/266 , G02B6/3514 , G02B6/3546 , G02B6/357 , G02B6/3594
摘要： An optical module has a planar waveguide which is provided with an optical circuit for an optical switch formed by 2×2 cross optical waveguides A1 to D1 and an optical circuit for an optical variable attenuator formed by 2×2 cross optical waveguides A2 to D2. Joined onto the planar waveguide is an actuator structure and the actuator structure is constituted by an actuator section for an optical switch and an actuator section for an optical variable attenuator. The optical circuit of the planar waveguide and the actuator section constitute an optical switch, whereas the optical circuit of the planar waveguide 2 and the actuator section constitute an optical variable attenuator.
摘要翻译：光学模块具有平面波导，该平面波导设置有用于由2×2个交叉光波导A1至D1形成的光开关的光路，以及由2×2个交叉光波导A2至D2形成的用于光可变衰减器的光电路。连接到平面波导上的是致动器结构，并且致动器结构由用于光学开关的致动器部分和用于光学可变衰减器的致动器部分构成。平面波导和致动器部分的光电路构成光开关，而平面波导2和致动器部分的光电路构成光可变衰减器。

3. 发明授权

US06782185B2 Optical variable attenuator and optical module 有权
标题翻译：光学可变衰减器和光学模块
公开(公告)号：US06782185B2
公开(公告)日：2004-08-24
申请号：US10331660
申请日：2002-12-31
申请人： Makoto Katayama , Tomohiko Kanie , Hiroshi Suganuma , Masayuki Nishimura
发明人： Makoto Katayama , Tomohiko Kanie , Hiroshi Suganuma , Masayuki Nishimura
IPC分类号： G02B635
CPC分类号： G02B6/3514 , G02B6/266 , G02B6/3546 , G02B6/3552 , G02B6/357 , G02B6/3594 , G02B6/3596
摘要： An optical variable attenuator has a planar waveguide, which is provided with optical waveguides forming an input optical line A and an output optical line B. A cantilever is disposed at the upper face of the planar waveguide, whereas a movable mirror for reflecting light passing through the input optical line A toward the output optical line B is secured to the leading end part of the cantilever. An electrode is disposed at the upper face of the planar waveguide. The cantilever and the electrode are connected to each other by way of a voltage source. The voltage source applies a voltage between the cantilever and the electrode, so as to generate an electrostatic force therebetween, which flexes the leading end side of the cantilever toward the electrode. As a consequence, the movable mirror moves toward the electrode.
摘要翻译：光学可变衰减器具有平面波导，其设置有形成输入光线A和输出光线B的光波导。悬臂设置在平面波导的上表面，而可移动镜用于反射通过的光输出光线A朝向输出光线B固定到悬臂的前端部。电极设置在平面波导的上表面。悬臂和电极通过电压源彼此连接。电压源在悬臂和电极之间施加电压，以在它们之间产生静电力，使悬臂的前端侧向电极弯曲。结果，可动镜朝向电极移动。

4. 发明授权

US06823106B2 Optical multiplexer/demultiplexer and adjustment method thereof 有权
标题翻译：光复用器/解复用器及其调整方法
公开(公告)号：US06823106B2
公开(公告)日：2004-11-23
申请号：US10260404
申请日：2002-10-01
申请人： Michiko Takushima , Hiroshi Suganuma , Tomomi Sano , Masakazu Shigehara
发明人： Michiko Takushima , Hiroshi Suganuma , Tomomi Sano , Masakazu Shigehara
IPC分类号： G02B628
CPC分类号： G02B6/29307 , G02B6/272 , G02B6/2773 , G02B6/2931 , G02B6/29313 , G02B6/2938 , G02B6/29395
摘要： The present invention relates to an optical multiplexer/demultiplexer. In the multiplexer/demultiplexer, a first grating receives to diffract a multi-wavelength light signal from a first port into light signals with different wavelengths. A second grating diffracts these light signals towards second ports. The second grating is disposed parallel with the first grating. The second grating has the same grating interval and grating direction as the first grating. The light signals diffracted by the second grating travel parallel with each other. Therefore, the light signals can efficiently enter the second ports without sophisticated lens design and adjustment of the optical system.
摘要翻译：本发明涉及一种光复用器/解复用器。在多路复用器/解复用器中，第一光栅接收将来自第一端口的多波长光信号衍射成具有不同波长的光信号。第二光栅将这些光信号衍射到第二端口。第二光栅与第一光栅平行设置。第二光栅具有与第一光栅相同的光栅间隔和光栅方向。由第二光栅衍射的光信号彼此平行行进。因此，光信号可以有效地进入第二端口，而无需光学系统的复杂的透镜设计和调整。

5. 发明授权

US06665472B2 Optical filter having cascaded long-period gratings 失效
标题翻译：具有级联长周期光栅的滤光器
公开(公告)号：US06665472B2
公开(公告)日：2003-12-16
申请号：US09964839
申请日：2001-09-28
申请人： Michiko Takushima , Masakazu Shigehara , Hiroshi Suganuma
发明人： Michiko Takushima , Masakazu Shigehara , Hiroshi Suganuma
IPC分类号： G02B634
CPC分类号： G02B6/0208 , G02B6/02095 , G02B6/29319
摘要： An optical filter has a first long-period grating and a second long-period grating formed in a unitary optical fiber. A difference is not less than 100 nm between a wavelength at which optical coupling is maximum between core-mode light and cladding-mode light of a predetermined mode number in the first long-period grating and a wavelength at which optical coupling is maximum between core-mode light and cladding-mode light of the same mode number as the cladding-mode light of the predetermined mode number, in the second long-period grating. This optical filter can be constructed in compact size and can readily implement a desired transmission characteristic.
摘要翻译：滤光器具有形成在单一光纤中的第一长周期光栅和第二长周期光栅。核心模式光与第一长周期光栅中的预定模数的包层模式光之间的光耦合最大的波长与核心之间的光耦合最大的波长的差别不小于100nm 在第二长周期光栅中具有与预定模数的包层模式光相同模数的模光和包层模光。该滤光器可以构造成紧凑的尺寸并且可以容易地实现期望的传输特性。

6. 发明授权

US06724539B2 Interleaver 失效
标题翻译：交织器
公开(公告)号：US06724539B2
公开(公告)日：2004-04-20
申请号：US10281309
申请日：2002-10-28
申请人： Tamoya Kenmochi , Hiroshi Suganuma , Tomomi Sano , Tetsuya Iimura
发明人： Tamoya Kenmochi , Hiroshi Suganuma , Tomomi Sano , Tetsuya Iimura
IPC分类号： G02B2714
CPC分类号： G02B6/29349 , G02B6/29386
摘要： The light which is input from an optical fiber to a first port is output to an optical path. The light which is input from the optical path to a half mirror is branched into two, and is output to the optical paths. The light which is output to the optical path reaches to and is reflected from a first reflecting mirror, and returns to the half mirror by an optical path. The light which is input to the half mirror by the optical path is branched into two, and is output to the optical paths. The light which is output to the optical path reaches to and is reflected from a second reflecting mirror, and returns to the half mirror by an optical path. The light which is input to the half mirror by the optical path is branched into two, and is output to the optical paths. The light which is output to the optical path is output from a second port to an optical fiber, and the light which is output to the optical path is output from a third port to an optical fiber.
摘要翻译：从光纤输入到第一端口的光被输出到光路。从光路输入到半反射镜的光被分支为两个，并被输出到光路。输出到光路的光到达并被第一反射镜反射，并通过光路返回到半反射镜。通过光路输入到半反射镜的光被分支为两个，并被输出到光路。输出到光路的光到达并被第二反射镜反射，并通过光路返回到半反射镜。通过光路输入到半反射镜的光被分支为两个，并被输出到光路。输出到光路的光从第二端口输出到光纤，并且输出到光路的光从第三端口输出到光纤。

7. 发明申请

US20050013007A1 Polarization interleaver and optical communication system 审中-公开
标题翻译：极化交织器和光通信系统
公开(公告)号：US20050013007A1
公开(公告)日：2005-01-20
申请号：US10499038
申请日：2002-12-10
申请人： Tomomi Sano , Hiroshi Suganuma , Tamoya Kenmochi
发明人： Tomomi Sano , Hiroshi Suganuma , Tamoya Kenmochi
IPC分类号： G02B5/30 , H04J14/02 , H04J14/06 , G02B27/14
CPC分类号： G02B5/3083 , H04J14/02 , H04J14/06
摘要： In a polarized wave interleaver 100, signal light of a first wavelength band Λ1 of polarized light component in a first orientation, which enters an input port 111, proceeds to a first path P1 through a first polarized wave separation element 131. Even after passing through a wavelength filter 140, the polarized light component in the first orientation is maintained as it is. And the light proceeds to a third path P3 through a second polarized wave separation element 132, and is output from a first output port 121. Signal light of a second wavelength band Λ2 of polarized light component in a second orientation, which enters the input port 111, proceeds to a second path P2 through the first polarized wave separation element 131, and is converted to the polarized light component in the first orientation by the wavelength filter 140. And the light proceeds to a fourth path P4 through the second polarized wave separation element 132, and is output from a second output port 122. The wavelength filter 140 includes a first multi-refraction material 141, a second multi-refraction material 142 and a third multi-refraction material 143. The optical thickness of the three multi-refraction materials 141-143 has a predetermined ratio; and the orientation of the C axis falls within a predetermined range.
摘要翻译：在偏振波交织器100中，进入输入端口111的第一取向的偏振光分量的第一波长带λ1的信号光通过第一偏振波分离元件131进入第一路径P1。一个波长滤波器140，保持第一取向中的偏振光分量原样。并且光通过第二偏振波分离元件132进入第三路径P3，并且从第一输出端口121输出。第二方向的偏振光分量的第二波长带λ2的信号光进入输入端口 111通过第一偏振波分离元件131进入第二路径P2，并通过波长滤波器140被转换成第一取向的偏振光分量。并且光通过第二偏振波分离进行到第四路径P4 元件132，并且从第二输出端口122输出。波长滤波器140包括第一多折射材料141，第二多折射材料142和第三多折射材料143.三个多折射材料141的光学厚度，折射材料141-143具有预定比例; 并且C轴的取向落在预定范围内。

8. 发明授权

US06823114B2 Optical signal processing apparatus 有权
标题翻译：光信号处理装置
公开(公告)号：US06823114B2
公开(公告)日：2004-11-23
申请号：US10386605
申请日：2003-03-13
申请人： Michiko Takushima , Tomomi Sano , Hiroshi Suganuma , Tatsuhiko Tanaka
发明人： Michiko Takushima , Tomomi Sano , Hiroshi Suganuma , Tatsuhiko Tanaka
IPC分类号： G02B634
CPC分类号： G02B6/2931 , G02B6/2938
摘要： This invention provides an optical signal processing apparatus capable of size reduction. When signal light with multiple wavelengths &lgr;1 to &lgr;4 is collimated by and output from a fiber collimator, the signal light components with multiple wavelengths &lgr;1 to &lgr;4 are diffracted by a diffraction grating at diffraction angles corresponding to the wavelengths and separated for the respective wavelengths. The separated signal light components of the respective wavelengths are output to spatially different optical paths. The signal light components having the wavelengths &lgr;n are deflected at their optical paths by prisms to increase the optical path interval and then input to fiber collimators.
摘要翻译：本发明提供能够减小尺寸的光信号处理装置。当具有多个波长λ1至λ4的信号光由光纤准直仪准直和输出时，具有多个波长λ1至λ4的信号光分量被衍射光栅衍射，衍射光栅以对应于波长的衍射角衍射并为各波长分离。各个波长的分离的信号光分量输出到空间不同的光路。具有波长lambdan的信号光分量在其光路上由棱镜偏转以增加光程间隔，然后输入到光纤准直仪。

9. 发明授权

US06810170B2 Optical signal processor 有权
标题翻译：光信号处理器
公开(公告)号：US06810170B2
公开(公告)日：2004-10-26
申请号：US10458374
申请日：2003-06-11
申请人： Michiko Takushima , Tomomi Sano , Hiroshi Suganuma
发明人： Michiko Takushima , Tomomi Sano , Hiroshi Suganuma
IPC分类号： G02B628
CPC分类号： G02B6/29307 , G02B6/29313 , G02B6/2938
摘要： Light output from the distal end of an optical fiber collimator is input to a first diffraction grating formed on a first surface of a transparent member, and diffracted by the first diffraction grating at angles corresponding to wavelengths, and thus wavelength-branched. The light components of the respective wavelengths branched by the first diffraction grating and having propagated through the transparent member, are diffracted by a second diffraction grating formed on a second surface of the transparent member, and output from the transparent member. Each of the light components of the respective wavelengths, which are diffracted by the second diffraction grating and output from the transparent member, is input to the distal end of a corresponding one of optical fiber collimators, focused, and propagates through the optical fiber.
摘要翻译：从光纤准直器的远端输出的光输入到形成在透明构件的第一表面上的第一衍射光栅，并由第一衍射光栅以对应于波长的角度衍射，因此波长分支。由第一衍射光栅分支且已经透过透明构件的各波长的光分量被形成在透明构件的第二表面上的第二衍射光栅衍射，并从透明构件输出。通过第二衍射光栅衍射并从透明构件输出的各个波长的每个光分量被输入到相应的一个光纤准直器的远端，聚焦并且传播通过光纤。

10. 发明授权

US06965479B2 Optical filter, interleaver, and optical communication system 失效
标题翻译：光滤波器，交织器和光通信系统
公开(公告)号：US06965479B2
公开(公告)日：2005-11-15
申请号：US10468895
申请日：2002-12-10
申请人： Tomomi Sano , Hiroshi Suganuma , Tamoya Kenmochi , Tetsuya Iimura , Manabu Shiozaki
发明人： Tomomi Sano , Hiroshi Suganuma , Tamoya Kenmochi , Tetsuya Iimura , Manabu Shiozaki
IPC分类号： G02B6/34 , G02B26/02 , G02B27/14 , G02G27/14 , G02F1/01 , G02F1/23 , G02G27/10
CPC分类号： G02B6/29349 , G02B6/29386 , G02B26/02 , G02B27/145
摘要： A first optical system (11) has a first beam splitter (211). The first beam splitter (211) splits light arriving through a first optical path (P1) into two light beams, and outputs one light beam to a second optical path (P2) and the other light beam to a third optical path (P3). A second optical system (21) outputs the light output from the first beam splitter (221) to the second optical path (P2) and arriving at the second optical system (21) upon giving the light an intensity change with wavelength dependence and a phase change, and has a second beam splitter (221), first reflecting mirror (223), and second reflecting mirror (222). This makes it possible to provide an optical filter (200) which can realize a characteristic excellent in isolation with a very simple arrangement.
摘要翻译：第一光学系统（11）具有第一分束器（211）。第一分束器（211）将通过第一光路（P 1）到达的光分成两个光束，并将一个光束输出到第二光路（P 2），将另一个光束输出到第三光路（P 3）。第二光学系统（21）将从第一分束器（221）输出的光输出到第二光路（P 2），并且在给予光时具有波长依赖性的强度变化，并且到达第二光学系统具有第二分束器（221），第一反射镜（223）和第二反射镜（222）。这使得可以提供一种能够以非常简单的布置实现隔离性优异的光学滤波器（200）。

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