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1. 发明申请

US20100021167A1 Wavelength selecting switch 有权
标题翻译：波长选择开关
公开(公告)号：US20100021167A1
公开(公告)日：2010-01-28
申请号：US12453172
申请日：2009-04-30
申请人： Hirofumi Aota , Tamotsu Akashi , Tsuyoshi Yamamoto
发明人： Hirofumi Aota , Tamotsu Akashi , Tsuyoshi Yamamoto
IPC分类号： H04J14/02
CPC分类号： G02B6/356 , G02B6/29311 , G02B6/29313 , G02B6/352 , G02B6/3558 , G02B6/3594 , G02F2203/48 , G02F2203/58 , G02F2203/585 , H04Q2213/1301
摘要： In a wavelength selecting switch, light output from an input port of an input/output optical system is angularly dispersed according to a wavelength thereof, with a spectral element. Then the lights of respective wavelengths are collected by a light collecting optical system and reflected with a corresponding reflecting mirror of a mirror section. The reflected light corresponding to the angle of the reflecting mirror, is input to an output port at an output destination of the input/output optical system. The respective output ports of the input/output optical system each have a lens coupled to an end face of an optical fiber, and the lens has a structure where a focal length of a first region corresponding to inside a variable range of attenuation is different from a focal length of a second region corresponding to outside the variable range. As a result, a change in intensity of output light (coupling efficiency) at the time of an angle change of the reflecting mirror, and cross talk to an adjacent port can be reduced simultaneously.
摘要翻译：在波长选择开关中，从输入/输出光学系统的输入端口输出的光根据其波长与光谱元件成角度地分散。然后各个波长的光被聚光光学系统收集并用相应的反射镜反射镜反射。对应于反射镜的角度的反射光被输入到输入/输出光学系统的输出目的地的输出端口。输入/输出光学系统的各自的输出端口各自具有耦合到光纤的端面的透镜，并且透镜具有其中对应于可变衰减范围内的第一区域的焦距不同于对应于可变范围之外的第二区域的焦距。结果，能够同时降低反射镜的角度变化时的输出光的强度变化（耦合效率）和与相邻端口的串扰。

2. 发明授权

US07447399B2 Optical switch, and apparatus and method for controlling optical switch 有权
标题翻译：光开关，以及用于控制光开关的装置和方法
公开(公告)号：US07447399B2
公开(公告)日：2008-11-04
申请号：US11082806
申请日：2005-03-18
申请人： Hirofumi Aota , Tamotsu Akashi
发明人： Hirofumi Aota , Tamotsu Akashi
IPC分类号： G02B6/26
CPC分类号： G02B6/29395 , G02B6/2931 , G02B6/29311 , G02B6/29313 , G02B6/3512 , G02B6/355 , G02B6/3556 , G02B6/356
摘要： In an optical switch comprising a wavelength spatially dispersive optical element for spatially dispersing a wavelength-multiplexed beam according to wavelengths, a plurality of output ports and a plurality of mirrors onto which beams dispersed by the element are irradiated, and each of which is able to direct a reflected beam to any one of the plural output ports, when an incident position of a reflected beam irradiated onto any one of the output ports is changed, the angle of the reflecting surface of a corresponding mirror among the plural mirrors is changed in a direction other than a direction in which the mirrors are arranged, whereby a protuberance in the vicinity of the out-band (side lobe) of the transmission band characteristic of the optical switch can be suppressed.
摘要翻译：在包括用于根据波长空间分散波长多路复用波束的波长空间色散光学元件的光学开关中，多个输出端口和多个反射镜被照射到其上被分散的光束，并且每个反射镜能够将反射光束引导到多个输出端口中的任何一个，当反射光束照射到任何一个输出端口的入射位置改变时，多个反射镜中相应反射镜的反射表面的角度在除了配置反射镜的方向之外，可以抑制光开关特性的带外（旁瓣）附近的突起。

3. 发明申请

US20080239441A1 MIRROR DEVICE AND OPTICAL APPARATUS 有权
标题翻译：镜子装置和光学装置
公开(公告)号：US20080239441A1
公开(公告)日：2008-10-02
申请号：US12033959
申请日：2008-02-20
申请人： Hirofumi AOTA , Kohei Shibata , Tamotsu Akashi , Tsuyoshi Yamamoto
发明人： Hirofumi AOTA , Kohei Shibata , Tamotsu Akashi , Tsuyoshi Yamamoto
IPC分类号： G02B26/08
CPC分类号： G02B6/3512 , G02B1/02 , G02B6/29311 , G02B6/29313 , G02B6/356 , G02B26/0833
摘要： The present mirror device for suppressing PDL on the assumption of multiple modes of angles of input light and output light to movable mirrors with respect to the crystal axis of a crystal member at the time light passes through the crystal member. The mirror device includes a mirror system 2 and a flat-shaped crystal member 3 which is arranged in such a manner that a first angle is not larger than a second angle. The crystal member is constructed in such a manner that a third angle is substantially equal to a half of a fourth angle.
摘要翻译：本反射镜装置用于在时间光通过晶体部件的情况下假定输入光的多个角度和输出光相对于晶体部件的晶轴相对于可动反射镜的抑制PDL。镜装置包括镜子系统2和平面状的晶体构件3，其以第一角度不大于第二角度的方式布置。晶体构件的构造使得第三角度基本上等于第四角度的一半。

4. 发明申请

US20070077003A1 Wavelength selective optical switch, and optical device provided with spectrscopic function 有权
标题翻译：波长选择光开关，光学器件具有光谱功能
公开(公告)号：US20070077003A1
公开(公告)日：2007-04-05
申请号：US11320973
申请日：2005-12-30
申请人： Hirofumi Aota , Kohei Shibata , Tamotsu Akashi , Shinji Yamashita , Tsuyoshi Yamamoto , Shinichi Takeuchi , Yoshinobu Kubota , Nobuhiro Fukushima , Hiroyuki Furukawa , Toshiya Kishida
发明人： Hirofumi Aota , Kohei Shibata , Tamotsu Akashi , Shinji Yamashita , Tsuyoshi Yamamoto , Shinichi Takeuchi , Yoshinobu Kubota , Nobuhiro Fukushima , Hiroyuki Furukawa , Toshiya Kishida
IPC分类号： G02B6/35
CPC分类号： G02B6/29395 , G02B6/2931 , G02B6/29313 , G02B6/3512 , G02B6/4215
摘要： A wavelength selective optical switch of the present invention separates a WDM light emitted from an input port of an input and output optical system, according to wavelengths, by a diffraction grating, and thereafter, condenses the lights of respective wavelengths on MEMS mirrors respectively corresponding to the respective wavelengths, in a mirror array, to reflect them by a condenser optical system, to thereby switch optical paths for the respective lights. The condenser optical system is configured by combining a plurality of lenses whose focal distances are different from each other, and positions in an optical axis direction of the lenses are adjustable by a slide mechanism. Thus, despite an error in the focal distances of the condenser lenses, in a mounting angle of a spectral element or the like, a beam pitch at the condensing positions of the lights of respective wavelengths can be coincident with a mirror pitch in the mirror array.
摘要翻译：本发明的波长选择性光开关根据波长通过衍射光栅分离从输入和输出光学系统的输入端口发射的WDM光，然后将分别对应于反射镜阵列中的各个波长通过聚光器光学系统反射，从而切换各个光的光路。聚光器系统通过组合焦距彼此不同的多个透镜来构成，透镜的光轴方向的位置通过滑动机构来调节。因此，尽管聚光透镜的焦距存在误差，但是在光谱元件等的安装角度，各波长的光的聚光位置处的光束间距可以与镜阵列中的镜间距一致。

5. 发明授权

US07653273B2 Optical switch 有权
标题翻译：光开关
公开(公告)号：US07653273B2
公开(公告)日：2010-01-26
申请号：US11039962
申请日：2005-01-24
申请人： Shinji Yamashita , Tsuyoshi Yamamoto , Tamotsu Akashi , Kohei Shibata , Hirofumi Aota , Osamu Tsuboi
发明人： Shinji Yamashita , Tsuyoshi Yamamoto , Tamotsu Akashi , Kohei Shibata , Hirofumi Aota , Osamu Tsuboi
IPC分类号： G02B6/26 , G02B6/42 , G02B6/28 , G02B26/00
CPC分类号： G02B6/3518 , G02B6/2931 , G02B6/29395 , G02B6/3558 , G02B6/356 , G02B6/357 , G02B6/3594
摘要： The optical switch includes: a spectroscopic device which separates wavelength division multiplexed (WDM) light into its component wavelengths; and a plurality of movable reflectors, arranged in a spectral direction at different intervals, for reflecting light of an individual component wavelength separated by said spectroscopic device. With this optical switch, deterioration of the characteristic of the pass band is avoided, so that the pass band characteristic is increased.
摘要翻译：光开关包括：将波分复用（WDM）光分解为其分量波长的分光装置; 以及多个可移动反射器，其以不同的间隔在光谱方向上布置，用于反射由所述分光装置分离的各个分量波长的光。利用该光开关，可以避免通带特性的劣化，从而增加通带特性。

6. 发明申请

US20090135488A1 OPTICAL DEVICE AND WAVELENGTH SELECTIVE SWITCH 审中-公开
标题翻译：光学设备和波长选择开关
公开(公告)号：US20090135488A1
公开(公告)日：2009-05-28
申请号：US12267232
申请日：2008-11-07
申请人： Hirofumi AOTA , Kohei Shibata , Tamotsu Akashi , Tsuyoshi Yamamoto
发明人： Hirofumi AOTA , Kohei Shibata , Tamotsu Akashi , Tsuyoshi Yamamoto
IPC分类号： G02B5/18 , G02B26/08
CPC分类号： G02B27/42 , G02B6/29311 , G02B6/29313 , G02B6/3518 , G02B27/1006 , G02B27/1086
摘要： An optical device and a wavelength selector switch are provided. The optical device includes a diffraction grating having first and second planes and first and second reflecting planes located on a first plane side of the diffraction grating. In the optical device, light input to the second plane of the diffraction grating is diffracted, and then an optical path of the diffracted light is re-input to the first plane of the diffraction grating newly via the first and the second reflecting planes.
摘要翻译：提供光学装置和波长选择开关。光学装置包括具有第一和第二平面的衍射光栅以及位于衍射光栅的第一平面侧上的第一和第二反射平面。在光学装置中，衍射到衍射光栅的第二平面的光被衍射，然后衍射光的光路经由第一反射面和第二反射面重新输入到衍射光栅的第一平面。

7. 发明申请

US20090060416A1 Wavelength selective switch 有权
标题翻译：波长选择开关
公开(公告)号：US20090060416A1
公开(公告)日：2009-03-05
申请号：US12073896
申请日：2008-03-11
申请人： Tsuyoshi Yamamoto , Tamotsu Akashi , Kohei Shibata , Hirofumi Aota , Shinji Yamashita
发明人： Tsuyoshi Yamamoto , Tamotsu Akashi , Kohei Shibata , Hirofumi Aota , Shinji Yamashita
IPC分类号： G02B6/28
CPC分类号： G02B26/0833 , G02B6/29311 , G02B6/29313 , G02B6/32 , G02B6/3512 , G02B6/3558 , G02B6/356
摘要： A wavelength selective switch of the present invention angularly disperses lights output from a plurality of input ports of an input and output optical system, to an X-direction, according to wavelength, by a diffraction grating to supply the dispersed lights to a condenser lens. The condenser lens is arranged so that a center axis thereof is shifted to the X-direction relative to an axis passing through the center of spreading angle to the X-direction of output beams from the diffraction grating, and accordingly, at a non-operating time, the light of each wavelength passed through the condenser lens is incident on each movable mirror being tilted by an offset angle corresponding to a shift amount of the condenser lens. As a result, it becomes possible to block the connection between an input side and an output side at the non-operating time without degrading the performance at an operating time.
摘要翻译：本发明的波长选择开关通过衍射光栅将从输入和输出光学系统的多个输入端口输出的光成角度地分散到根据波长的X方向，以将分散的光提供给聚光透镜。聚光透镜被布置成使得其中心轴线相对于通过衍射光栅的输出光束的X方向的扩展角中心的X轴方向移位，因此，在非操作通过聚光透镜的每个波长的光入射到每个可移动反射镜上，倾斜一个对应于聚光透镜的偏移量的偏移角。结果，可以在非操作时阻止输入侧和输出侧之间的连接，而不会降低操作时的性能。

8. 发明申请

US20060222290A1 Optical switch and control method therefor 有权
标题翻译：光开关及其控制方法
公开(公告)号：US20060222290A1
公开(公告)日：2006-10-05
申请号：US11148190
申请日：2005-06-09
申请人： Shinji Yamashita , Tsuyoshi Yamamoto , Tamotsu Akashi , Kohei Shibata , Hirofumi Aota
发明人： Shinji Yamashita , Tsuyoshi Yamamoto , Tamotsu Akashi , Kohei Shibata , Hirofumi Aota
IPC分类号： G02B6/35
CPC分类号： G02B6/3586 , G02B6/2931 , G02B6/29313 , G02B6/3518 , G02B6/356 , G02B6/357 , G02B6/3588
摘要： The present invention provides an optical switch for restricting a reduction in an optical coupling efficiency to an output optical path, which comprises a first spectral unit, a second spectral unit for further spectrally diffracting a plurality of wavelength components spectrally diffracted in the first spectral unit, a plurality of movable mirrors capable of reflecting the plurality of wavelength components spectrally diffracted in the second spectral unit respectively and directing the same in different directions, and a controller for compensating for deviation angles relative to optical axes of the plurality of wavelength components spectrally diffracted in the second spectral unit through setting of angles of reflecting faces in the plurality of movable mirrors.
摘要翻译：本发明提供了一种用于限制光耦合效率降低到输出光路的光开关，其包括第一光谱单元，用于进一步光谱衍射在第一光谱单元中频谱衍射的多个波长分量的第二光谱单元，多个可移动反射镜，其能够分别反射在第二光谱单元中分光衍射的多个波长分量并将其引导到不同方向;以及控制器，用于补偿相对于在光谱上衍射的多个波长分量的光轴的偏离角度所述第二光谱单元通过设置所述多个可移动反射镜中的反射面的角度。

9. 发明申请

US20060140536A1 Optical switch, and apparatus and method for controlling optical switch 有权
标题翻译：光开关，以及用于控制光开关的装置和方法
公开(公告)号：US20060140536A1
公开(公告)日：2006-06-29
申请号：US11082806
申请日：2005-03-18
申请人： Hirofumi Aota , Tamotsu Akashi
发明人： Hirofumi Aota , Tamotsu Akashi
IPC分类号： G02B6/35 , G02B6/293
CPC分类号： G02B6/29395 , G02B6/2931 , G02B6/29311 , G02B6/29313 , G02B6/3512 , G02B6/355 , G02B6/3556 , G02B6/356
摘要： In an optical switch comprising a wavelength spatially dispersive optical element for spatially dispersing a wavelength-multiplexed beam according to wavelengths, a plurality of output ports and a plurality of mirrors onto which beams dispersed by the element are irradiated, and each of which is able to direct a reflected beam to any one of the plural output ports, when an incident position of a reflected beam irradiated onto any one of the output ports is changed, the angle of the reflecting surface of a corresponding mirror among the plural mirrors is changed in a direction other than a direction in which the mirrors are arranged, whereby a protuberance in the vicinity of the out-band (side lobe) of the transmission band characteristic of the optical switch can be suppressed.
摘要翻译：在包括用于根据波长空间分散波长多路复用波束的波长空间色散光学元件的光学开关中，多个输出端口和多个反射镜被照射到其上被分散的光束，并且每个反射镜能够将反射光束引导到多个输出端口中的任何一个，当反射光束照射到任何一个输出端口的入射位置改变时，多个反射镜中相应反射镜的反射表面的角度在除了配置反射镜的方向之外，可以抑制光开关特性的带外（旁瓣）附近的突起。

10. 发明申请

US20060093263A1 Collimator array and method for manufacturing the same 失效
标题翻译：准直器阵列及其制造方法
公开(公告)号：US20060093263A1
公开(公告)日：2006-05-04
申请号：US11041435
申请日：2005-01-25
申请人： Tamotsu Akashi , Tsuyoshi Yamamoto , Shinji Yamashita , Kohei Shibata , Hirofumi Aota
发明人： Tamotsu Akashi , Tsuyoshi Yamamoto , Shinji Yamashita , Kohei Shibata , Hirofumi Aota
IPC分类号： G02B6/32
CPC分类号： G02B6/2931 , G02B6/29313 , G02B6/32 , G02B6/3512 , G02B6/3544 , G02B6/3554 , G02B6/356
摘要： A collimator array includes a substrate; a plurality of lenses formed on one face of the substrate; and a plurality of projecting parts, each of which is formed on a portion corresponding to the lens on the other face of the substrate, respectively and is fusion-connected to an optical fiber, respectively; wherein an area of the fusion-connected face of the projecting part with respect to the optical fiber is set to be larger than a cross sectional area of the optical fiber. Thereby, it is possible to provide a collimator having fewer variations in an output beam angle and a diameter of an output beam and having excellent strength, and a method for manufacturing the same.
摘要翻译：准直器阵列包括基板; 形成在所述基板的一个面上的多个透镜; 以及分别形成在与所述基板的另一面上的所述透镜相对应的部分上的多个突出部分，并分别与光纤熔接; 其中所述突出部分的所述熔接面相对于所述光纤的面积被设定为大于所述光纤的截面面积。由此，能够提供输出光束角度和输出光束的直径变化较小，强度优异的准直仪及其制造方法。

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