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公开(公告)号：US07463795B2
公开(公告)日：2008-12-09
申请号：US10981561
申请日：2004-11-05
申请人： Yukito Tsunoda , Hiroshi Miyata
发明人： Yukito Tsunoda , Hiroshi Miyata
CPC分类号： G02F1/125 , G02F2201/124
摘要： The present invention relates to an acousto-optic device capable of extending the frequency band of SAWs being able to be generated by it, the acousto-optic device comprising: a light propagation unit for propagating light; a surface acoustic wave propagation unit capable of propagating a surface acoustic wave causing interaction with light which propagates in the light propagation unit; and a transducer electrode unit provided with a plurality of electrodes configured so as to correspond to a frequency band to be generated as the surface acoustic wave which propagates in the surface acoustic wave propagation unit.
摘要翻译： 本发明涉及能够扩展其能够产生的SAW频带的声光装置，该声光装置包括：用于传播光的光传播单元; 表面声波传播单元，其能够传播与光传播单元中传播的光的相互作用的表面声波; 以及设置有多个电极的换能器电极单元，所述多个电极被配置为对应于要在声表面波传播单元中传播的表面声波产生的频带。
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公开(公告)号：US07340115B2
公开(公告)日：2008-03-04
申请号：US11287394
申请日：2005-11-28
申请人： Hiroshi Miyata , Yukito Tsunoda
发明人： Hiroshi Miyata , Yukito Tsunoda
IPC分类号： G02F1/335
CPC分类号： G02F1/125 , G02F2203/06
摘要： In an optical wavelength tunable filter (AOTF) using an acousto-optic effect of the present invention, there is provided a single SAW waveguide which propagates a surface acoustic wave generated by an IDT along respective arm portions of an optical waveguide. The SAW waveguide is formed with a pair of low sound-velocity areas having a curved belt shape, in which a mode distribution of a propagating SAW is changed symmetrically with respect to a straight line as an axis passing through the middle of the respective arm portions, while keeping the sound velocity of the SAW constant. As a result, wavelength dependence and polarization dependence of the filter property, and an increase in sidelobe level, generated due to weighting of the SAW intensity, can be suppressed.
摘要翻译： 在使用本发明的声光效果的光波长可调滤波器（AOTF）中，提供了单个SAW波导，其传播由IDT沿着光波导的各个臂部分产生的声表面波。 SAW波导形成有一对具有弯曲带状的低声速区域，其中传播的SAW的模式分布相对于作为穿过各个臂部的中间的轴线对称地改变 同时保持SAW的声速恒定。 结果，可以抑制由于SAW强度的加权而产生的滤波器特性的波长依赖性和极化依赖性以及旁瓣电平的增加。
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公开(公告)号：US20070031082A1
公开(公告)日：2007-02-08
申请号：US11287394
申请日：2005-11-28
申请人： Hiroshi Miyata , Yukito Tsunoda
发明人： Hiroshi Miyata , Yukito Tsunoda
IPC分类号： G02F1/335
CPC分类号： G02F1/125 , G02F2203/06
摘要： In an optical wavelength tunable filter (AOTF) using an acousto-optic effect of the present invention, there is provided a single SAW waveguide which propagates a surface acoustic wave generated by an IDT along respective arm portions of an optical waveguide. The SAW waveguide is formed with a pair of low sound-velocity areas having a curved belt shape, in which a mode distribution of a propagating SAW is changed symmetrically with respect to a straight line as an axis passing through the middle of the respective arm portions, while keeping the sound velocity of the SAW constant. As a result, wavelength dependence and polarization dependence of the filter property, and an increase in sidelobe level, generated due to weighting of the SAW intensity, can be suppressed.
摘要翻译： 在使用本发明的声光效果的光波长可调滤波器（AOTF）中，提供了单个SAW波导，其传播由IDT沿着光波导的各个臂部分产生的声表面波。 SAW波导形成有一对具有弯曲带状的低声速区域，其中传播的SAW的模式分布相对于作为穿过各个臂部的中间的轴线对称地改变 同时保持SAW的声速恒定。 结果，可以抑制由于SAW强度的加权而产生的滤波器特性的波长依赖性和极化依赖性以及旁瓣电平的增加。
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公开(公告)号：US20070189655A1
公开(公告)日：2007-08-16
申请号：US11723936
申请日：2007-03-22
申请人： Hiroshi Miyata , Yukito Tsunoda , Tadao Nakazawa , Yumi Nakazawa
发明人： Hiroshi Miyata , Yukito Tsunoda , Tadao Nakazawa , Yumi Nakazawa
IPC分类号： G02F1/335
CPC分类号： G02F1/125 , G02F1/116 , H03H9/02968 , H04J14/021
摘要： An acousto-optic device is disclosed which can achieve both of suppression of secular change and prevention of device damage and can maintain a stabilized wavelength selection filtering operation. The acousto-optic device includes a substrate on which a SAW guide for guiding a surface acoustic wave and an optical waveguide for guiding an optical wave are provided. A pyro-electricity coping conductive wiring pattern is provided in a region of the substrate other than the SAW guide and neutralizes polarization charge generated on a surface of the substrate.
摘要翻译： 公开了一种可以实现抑制长期变化和防止设备损坏的声光器件，并且可以保持稳定的波长选择滤波操作。 声光装置包括：基板，用于引导表面声波的SAW引导件和用于引导光波的光波导的基板。 在除了SAW引导件之外的基板的区域中设置热电承载导电布线图案，并且中和在基板的表面上产生的极化电荷。
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公开(公告)号：US07218797B2
公开(公告)日：2007-05-15
申请号：US10945923
申请日：2004-09-22
申请人： Hiroshi Miyata , Yukito Tsunoda , Tadao Nakazawa
发明人： Hiroshi Miyata , Yukito Tsunoda , Tadao Nakazawa
IPC分类号： G02F1/295
CPC分类号： G02F1/125 , G02F1/116 , H03H9/02968 , H04J14/021
摘要： An acousto-optic device is disclosed which can achieve both of suppression of secular change and prevention of device damage and can maintain a stabilized wavelength selection filtering operation. The acousto-optic device includes a substrate on which a SAW guide for guiding a surface acoustic wave and an optical waveguide for guiding an optical wave are provided. A pyro-electricity coping conductive wiring pattern is provided in a region of the substrate other than the SAW guide and neutralizes polarization charge generated on a surface of the substrate.
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公开(公告)号：US20060126988A1
公开(公告)日：2006-06-15
申请号：US11085210
申请日：2005-03-22
申请人： Tadao Nakazawa , Yumi Nakazawa , Hiroshi Miyata , Yukito Tsunoda
发明人： Tadao Nakazawa , Yumi Nakazawa , Hiroshi Miyata , Yukito Tsunoda
IPC分类号： G02F1/035
CPC分类号： G02F1/0353 , G02F2201/124
摘要： The present invention is directed toward an optical device and a drive voltage supply device, which prevent occurrence of a d.c. drift and enable stable selection of light of desired wavelength without deteriorating a filtering characteristic. The optical device comprises a substrate having an electrooptical effect; an optical waveguide formed in this substrate; a plurality of comb electrode pairs which are arranged side by side along the optical waveguide, can apply an electric field for said electrooptical effect, and are formed from respective pairs of comb electrodes; and drive voltage supply means capable of supplying a drive voltage to said comb electrode pairs such that the voltage changes with time.
摘要翻译： 本发明涉及一种光学装置和驱动电压供应装置，其防止发生直流。 漂移并使得能够稳定地选择所需波长的光，而不会降低滤波特性。 光学装置包括具有电光效应的基板; 在该衬底中形成的光波导; 沿着光波导并排布置的多个梳状电极对可以对所述电光效应用电场，并由各对梳状电极形成; 以及驱动电压供给装置，其能够向所述梳状电极对提供驱动电压，使得电压随时间而变化。
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公开(公告)号：US07430344B2
公开(公告)日：2008-09-30
申请号：US11723936
申请日：2007-03-22
申请人： Hiroshi Miyata , Yukito Tsunoda , Tadao Nakazawa , Yumi Nakazawa
发明人： Hiroshi Miyata , Yukito Tsunoda , Tadao Nakazawa , Yumi Nakazawa
IPC分类号： G02F1/295
CPC分类号： G02F1/125 , G02F1/116 , H03H9/02968 , H04J14/021
摘要： An acousto-optic device is disclosed which can achieve both of suppression of secular change and prevention of device damage and can maintain a stabilized wavelength selection filtering operation. The acousto-optic device includes a substrate on which a SAW guide for guiding a surface acoustic wave and an optical waveguide for guiding an optical wave are provided. A pyro-electricity coping conductive wiring pattern is provided in a region of the substrate other than the SAW guide and neutralizes polarization charge generated on a surface of the substrate.
摘要翻译： 公开了一种可以实现抑制长期变化和防止设备损坏的声光器件，并且可以保持稳定的波长选择滤波操作。 声光装置包括：基板，用于引导表面声波的SAW引导件和用于引导光波的光波导的基板。 在除了SAW引导件之外的基板的区域中设置热电承载导电布线图案，并且中和在基板的表面上产生的极化电荷。
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8.发明申请Optical communication device provided with a reflector and method for forming a reflector in an optical communication device 审中-公开具有反射器的光通信设备和在光通信设备中形成反射器的方法公开(公告)号：US20070070490A1
公开(公告)日：2007-03-29
申请号：US11312769
申请日：2005-12-21
申请人： Yukito Tsunoda , Hiroshi Miyata
发明人： Yukito Tsunoda , Hiroshi Miyata
CPC分类号： G02B5/08 , G02B2006/12119 , G02F1/116 , G02F1/125 , G02F2201/16 , G02F2201/34 , G02F2203/023
摘要： An optical communication device of the invention includes a reflector for reflecting the light that has reached one end surface of a waveguide chip to turn the optical path of the light. The reflector includes a transparent thin film layer formed on one end surface of the waveguide chip by using a material to which a metal that forms an intermetallic compound or the like with Au is added to a substance that is transparent to the light that propagates through the waveguide, as well as an Au thin film layer formed on the front surface of the transparent thin film layer. This allows formation of a reflector having an Au thin film layer as a reflecting surface in an optical medium with high adhesion strength. Thus, an optical communication device can be provided having a high reliability with little loss.
摘要翻译： 本发明的光通信装置包括用于反射已经到达波导芯片的一个端面的光的反射器，以转动光的光路。 反射器包括透明薄膜层，该透明薄膜层通过使用将金属与Au形成金属间化合物等的材料添加到透过透明的光的物质上而形成在波导芯片的一个端面上 波导，以及形成在透明薄膜层的前表面上的Au薄膜层。 这允许在具有高粘合强度的光学介质中形成具有Au薄膜层作为反射表面的反射器。 因此，可以提供具有高可靠性且损耗小的光通信装置。
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公开(公告)号：US20050286826A1
公开(公告)日：2005-12-29
申请号：US10954305
申请日：2004-10-01
申请人： Yukito Tsunoda , Hiroshi Miyata
发明人： Yukito Tsunoda , Hiroshi Miyata
CPC分类号： G02F1/116 , G02F1/125 , G02F2001/212
摘要： The present invention relates to an acousto-optic device capable of improving the interaction efficiency for suppressing the driving power needed for SAW generation. The acousto-optic device according to the present invention a substrate showing an acousto-optic effect, first and second optical waveguides formed on the substrate to be substantially parallel with each other for propagating light, a transducer formed on the substrate for producing a surface acoustic wave to be propagated in a propagation direction along directions of the first and second optical waveguides, and a surface acoustic wave distribution structure for distributing an intensity of the surface acoustic wave from the transducer in a direction perpendicular to the propagation direction on the substrate so that maximum values develop at two points corresponding to positions of the first and second optical waveguides.
摘要翻译： 本发明涉及能够提高用于抑制SAW产生所需的驱动功率的相互作用效率的声光装置。 根据本发明的声光装置，具有声光效应的基板，形成在基板上的基本上彼此平行以传播光的第一和第二光波导;形成在基板上的用于产生表面声学的换能器 波沿着第一和第二光波导的方向沿传播方向传播，以及声表面波分布结构，用于在与基板上的传播方向垂直的方向上分配来自换能器的表面声波的强度，使得 在与第一和第二光波导的位置对应的两个点处产生最大值。
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公开(公告)号：US20050259906A1
公开(公告)日：2005-11-24
申请号：US10945923
申请日：2004-09-22
申请人： Hiroshi Miyata , Yukito Tsunoda , Tadao Nakazawa , Yumi Nakazawa
发明人： Hiroshi Miyata , Yukito Tsunoda , Tadao Nakazawa , Yumi Nakazawa
CPC分类号： G02F1/125 , G02F1/116 , H03H9/02968 , H04J14/021
摘要： An acousto-optic device is disclosed which can achieve both of suppression of secular change and prevention of device damage and can maintain a stabilized wavelength selection filtering operation. The acousto-optic device includes a substrate on which a SAW guide for guiding a surface acoustic wave and an optical waveguide for guiding an optical wave are provided. A pyro-electricity coping conductive wiring pattern is provided in a region of the substrate other than the SAW guide and neutralizes polarization charge generated on a surface of the substrate.
摘要翻译： 公开了一种可以实现抑制长期变化和防止设备损坏的声光器件，并且可以保持稳定的波长选择滤波操作。 声光装置包括：基板，用于引导表面声波的SAW引导件和用于引导光波的光波导的基板。 在除了SAW引导件之外的基板的区域中设置热电承载导电布线图案，并且中和在基板的表面上产生的极化电荷。
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