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    Advanced-format optical modulator with low power consumption and low-loss characteristics
    1.
    发明授权
    Advanced-format optical modulator with low power consumption and low-loss characteristics 有权
    高级格式的光调制器具有低功耗和低损耗特性

    公开(公告)号：US08965146B2

    公开(公告)日：2015-02-24

    申请号：US13381298

    申请日：2010-07-09

    申请人： Takashi Goh ,  Yoshiyuki Doi ,  Shinji Mino ,  Ken Tsuzuki ,  Hiroshi Yamazaki ,  Takashi Yamada

    发明人： Takashi Goh ,  Yoshiyuki Doi ,  Shinji Mino ,  Ken Tsuzuki ,  Hiroshi Yamazaki ,  Takashi Yamada

    IPC分类号： G02F1/035 ,  G02F1/03 ,  G02F1/225 ,  G02B6/12

    CPC分类号： G02F1/0327 ,  G02B2006/12142 ,  G02B2006/12159 ,  G02F1/225 ,  G02F2201/126 ,  G02F2203/20 ,  G02F2203/21

    摘要： In a nest MZI modulator in which each arm includes a child MZI, the power consumption is reduced. The hybrid integrated-type nest MZI modulator of the embodiment 1a is configured so that, instead of placing a relative phase adjusting section in a parent MZI, a bias electrode Bias 90° in which an electric field is applied in the same direction to the polarization direction in both of the upper and lower arms is placed in each child MZI (see FIG. 4B). The bias electrode Bias 90° provided in each child MZI constitute the entirety of a relative phase adjusting section. The optical signals are subjected to a phase change after the output from the child MZI (see FIG. 1A), because such relative phase adjusting section can subject the optical signals of the upper and lower arms of the child MZI to a shift change in the same direction, respectively.

    摘要翻译： 在其中每个臂包括儿童MZI的巢MZI调制器中，功耗降低。 实施例1a的混合集成型嵌套MZI调制器被配置为使得不是将相对相位调整部分放置在母MZI中，而是将偏置电极偏置90°，其中向与极化相同的方向施加电场 将上臂和下臂两者的方向放置在每个子MZI中（参见图4B）。 每个子MZI中设置的偏置电极偏置90°构成相对相位调整部的整体。 在从子MZI（参见图1A）的输出之后，光信号经受相变，因为这种相对相位调整部分可以使子MZI的上臂和下臂的光信号在 相同方向。

    OPTICAL COMPONENT
    3.
    发明申请
    OPTICAL COMPONENT 有权
    光学元件

    公开(公告)号：US20130136393A1

    公开(公告)日：2013-05-30

    申请号：US13813388

    申请日：2011-08-02

    申请人： Motohaya Ishii ,  Takashi Yamada ,  Yoshiyuki Doi ,  Takashi Saida ,  Ken Tsuzuki ,  Takashi Goh ,  Hiroshi Yamazaki ,  Shinji Mino ,  Takao Fukumitsu ,  Atsushi Murasawa ,  Fumihiro Ebisawa ,  Hiroshi Terui ,  Tomoyo Shibazaki ,  Yuichi Kikuchi

    发明人： Motohaya Ishii ,  Takashi Yamada ,  Yoshiyuki Doi ,  Takashi Saida ,  Ken Tsuzuki ,  Takashi Goh ,  Hiroshi Yamazaki ,  Shinji Mino ,  Takao Fukumitsu ,  Atsushi Murasawa ,  Fumihiro Ebisawa ,  Hiroshi Terui ,  Tomoyo Shibazaki ,  Yuichi Kikuchi

    IPC分类号： G02B6/122

    CPC分类号： G02B6/122 ,  G02B6/30 ,  G02B6/3897 ,  G02B6/4267 ,  G02B6/428 ,  G02B2006/1204

    摘要： In an optical component configured to fix to a mount an optical device chip in which a plurality of waveguide type optical devices having different thermal expansion coefficients are butt-jointed, deterioration in reliability due to thermal stress is suppressed. The optical component (300) comprises an optical device chip (310) including an LN waveguide (311), a first PLC waveguide (312) connected to an end of the LN waveguide (311), a second PLC waveguide (313) connected to the other end of the LN waveguide (311), and a fiber alignment member (314) connected to the first PLC waveguide (312), a mount (320) on which the optical device chip (310) is mounted, and optical fibers (330) aligned to the fiber alignment member (314). Each of connection faces between the first PLC waveguide (312) and the fiber alignment member (314) is configured as an tilted structure, and each of connection faces between the LN waveguide (311), and the first and second PLC waveguides (312, 313) is configured as a right-angled structure. In the right-angled structure, the connection faces are connected by an adhesive having a lower Young's modulus than that of an adhesive used on the connection faces of the tilted structure.

    摘要翻译： 在构造成将具有不同热膨胀系数的多个波导型光学器件对接的光学器件芯片固定到安装件的光学部件中，抑制了由于热应力引起的可靠性的劣化。 光学部件（300）包括光学器件芯片（310），其包括LN波导（311），连接到LN波导（311）的一端的第一PLC波导（312），连接到 LN波导311的另一端和与第一PLC波导312连接的光纤对准部314，安装光器件芯片310的安装座320和光纤 330）对准到光纤对准部件（314）。 第一PLC波导（312）与光纤对准部件（314）之间的各连接面构成为倾斜结构，并且LN波导311与第一和第二PLC波导312和312之间的各连接面， 313）被配置为直角结构。 在直角结构中，连接面通过具有比在倾斜结构的连接面上使用的粘合剂的杨氏模量低的粘合剂连接。

    Optical modulator
    4.
    发明授权
    Optical modulator 有权
    光调制器

    公开(公告)号：US08705900B2

    公开(公告)日：2014-04-22

    申请号：US13635845

    申请日：2011-03-18

    申请人： Takashi Goh ,  Takashi Yamada ,  Hiroshi Yamazaki ,  Yoshiyuki Doi

    发明人： Takashi Goh ,  Takashi Yamada ,  Hiroshi Yamazaki ,  Yoshiyuki Doi

    IPC分类号： G02F1/035 ,  G02F1/225 ,  H04B10/54

    CPC分类号： G02F1/225 ,  G02F1/0121 ,  G02F2001/212 ,  H04B10/5051 ,  H04B10/5053 ,  H04B10/5162 ,  H04B10/54 ,  H04B10/5561 ,  H04L27/206

    摘要： Disclosed is an optical modulator which substantially lowers loss and has little attenuation in the intensity of an optical signal after modulation. The optical modulator includes a 1×2 RZ pulse carver wherein optical phase shifters used for modulation are arranged along two arm waveguides held between a 1×2 coupler and a 2×2 coupler, two interferometric modulators connected respectively to two output ports of the 2×2 coupler, and a 2×1 coupler for combining the outputs of the interferometric modulators.

    摘要翻译： 公开了一种光调制器，其基本上降低了损耗，并且在调制后光信号的强度几乎没有衰减。 光调制器包括1×2 RZ脉冲雕刻机，其中用于调制的光学移相器沿着保持在1×2耦合器和2×2耦合器之间的两个臂波导布置，两个干涉式调制器分别连接到2的两个输出端口 ×2耦合器和用于组合干涉式调制器的输出的2×1耦合器。

    OPTICAL MODULATOR
    5.
    发明申请
    OPTICAL MODULATOR 有权
    光学调制器

    公开(公告)号：US20130011093A1

    公开(公告)日：2013-01-10

    申请号：US13635845

    申请日：2011-03-18

    申请人： Takashi Goh ,  Takashi Yamada ,  Hiroshi Yamazaki ,  Yoshiyuki Doi

    发明人： Takashi Goh ,  Takashi Yamada ,  Hiroshi Yamazaki ,  Yoshiyuki Doi

    IPC分类号： G02F1/035

    CPC分类号： G02F1/225 ,  G02F1/0121 ,  G02F2001/212 ,  H04B10/5051 ,  H04B10/5053 ,  H04B10/5162 ,  H04B10/54 ,  H04B10/5561 ,  H04L27/206

    摘要： Disclosed is an optical modulator which substantially lowers loss and has little attenuation in the intensity of an optical signal after modulation. The optical modulator includes a 1×2 RZ pulse carver wherein optical phase shifters used for modulation are arranged along two arm waveguides held between a 1×2 coupler and a 2×2 coupler, two interferometric modulators connected respectively to two output ports of the 2×2 coupler, and a 2×1 coupler for combining the outputs of the interferometric modulators.

    摘要翻译： 公开了一种光调制器，其基本上降低了损耗，并且在调制后光信号的强度几乎没有衰减。 光调制器包括1×2 RZ脉冲雕刻机，其中用于调制的光学移相器沿着保持在1×2耦合器和2×2耦合器之间的两个臂波导布置，两个干涉式调制器分别连接到2的两个输出端口 ×2耦合器和用于组合干涉式调制器的输出的2×1耦合器。

    OPTICAL MODULATOR
    6.
    发明申请
    OPTICAL MODULATOR 有权
    光学调制器

    公开(公告)号：US20120106888A1

    公开(公告)日：2012-05-03

    申请号：US13381298

    申请日：2010-07-09

    申请人： Takashi Goh ,  Yoshiyuki Doi ,  Shinji Mino ,  Ken Tsuzuki ,  Hiroshi Yamazaki ,  Takashi Yamada

    发明人： Takashi Goh ,  Yoshiyuki Doi ,  Shinji Mino ,  Ken Tsuzuki ,  Hiroshi Yamazaki ,  Takashi Yamada

    IPC分类号： G02F1/035

    CPC分类号： G02F1/0327 ,  G02B2006/12142 ,  G02B2006/12159 ,  G02F1/225 ,  G02F2201/126 ,  G02F2203/20 ,  G02F2203/21

    摘要： In a nest MZI modulator in which each arm includes a child MZI, the power consumption is reduced. The hybrid integrated-type nest MZI modulator of the embodiment 1a is configured so that, instead of placing a relative phase adjusting section in a parent MZI, a bias electrode Bias 90° in which an electric field is applied in the same direction to the polarization direction in both of the upper and lower arms is placed in each child MZI (see FIG. 4B). The bias electrode Bias 90° provided in each child MZI constitute the entirety of a relative phase adjusting section. The optical signals are subjected to a phase change after the output from the child MZI (see FIG. 1A), because such relative phase adjusting section can subject the optical signals of the upper and lower arms of the child MZI to a shift change in the same direction, respectively.

    摘要翻译： 在其中每个臂包括儿童MZI的巢MZI调制器中，功耗降低。 实施例1a的混合集成型嵌套MZI调制器被配置为使得不是将相对相位调整部分放置在母MZI中，而是将偏置电极偏置90°，其中向与极化相同的方向施加电场 将上臂和下臂两者的方向放置在每个子MZI中（参见图4B）。 每个子MZI中设置的偏置电极偏置90°构成相对相位调整部的整体。 在从子MZI（参见图1A）的输出之后，光信号经受相变，因为这种相对相位调整部分可以使子MZI的上臂和下臂的光信号在 相同方向。

    Optical modulator
    7.
    发明授权
    Optical modulator 有权
    光调制器

    公开(公告)号：US08467635B2

    公开(公告)日：2013-06-18

    申请号：US13129680

    申请日：2009-12-02

    申请人： Yoshiyuki Doi ,  Takashi Yamada ,  Yohei Sakamaki ,  Akimasa Kaneko

    发明人： Yoshiyuki Doi ,  Takashi Yamada ,  Yohei Sakamaki ,  Akimasa Kaneko

    IPC分类号： G02F1/035 ,  G02F1/225

    CPC分类号： G02F1/225 ,  G02F1/2257 ,  G02F2001/212 ,  G02F2001/217 ,  G02F2202/09 ,  G02F2202/20 ,  G02F2202/28 ,  G02F2203/20 ,  G02F2203/21

    摘要： An optical modulator having a high stability is provided. In the optical modulator according to the present invention, a phase modulation by an electro-optic effect is made on an optical substrate of an electro-optic material while the setting of an operating point by a thermal-optic effect is made on a planar lightwave circuit (PLC) substrate of quartz, silicon, or the like. Such configuration can suppress the influence of thermal drift or the like because no heat is applied directly to the optical substrate of the electro-optic material. In addition, breakage and warpage of the substrate due to heat are also mitigated. Further, quartz used for the PLC has a low thermal conductivity, approximately one-fifth of that of the LN substrate (approximately 1 W/(m·K)), and therefore, a desired phase difference can be maintained with a low power consumption, and thus, the operating point becomes stabilized.

    摘要翻译： 提供了具有高稳定性的光调制器。 在根据本发明的光调制器中，在电光材料的光学基板上进行通过电光效应的相位调制，同时通过热光学效应设置工作点在平面光波 石英，硅等的电路（PLC）基板。 这种构造可以抑制热漂移等的影响，因为没有热直接施加到电光材料的光学基板。 此外，还减轻了由于热而引起的基板的断裂和翘曲。 此外，用于PLC的石英具有低导热性，大约是LN衬底的约五分之一（约1W /（m·K）），因此可以以低功耗维持期望的相位差 因此，工作点变得稳定。

    OPTICAL MODULATOR
    8.
    发明申请
    OPTICAL MODULATOR 有权
    光学调制器

    公开(公告)号：US20110229070A1

    公开(公告)日：2011-09-22

    申请号：US13129680

    申请日：2009-12-02

    申请人： Yoshiyuki Doi ,  Takashi Yamada ,  Yohei Sakamaki ,  Akimasa Kaneko

    发明人： Yoshiyuki Doi ,  Takashi Yamada ,  Yohei Sakamaki ,  Akimasa Kaneko

    IPC分类号： G02F1/035

    CPC分类号： G02F1/225 ,  G02F1/2257 ,  G02F2001/212 ,  G02F2001/217 ,  G02F2202/09 ,  G02F2202/20 ,  G02F2202/28 ,  G02F2203/20 ,  G02F2203/21

    摘要： An optical modulator having a high stability is provided. In the optical modulator according to the present invention, a phase modulation by an electro-optic effect is made on an optical substrate of an electro-optic material while the setting of an operating point by a thermal-optic effect is made on a planar lightwave circuit (PLC) substrate of quartz, silicon, or the like. Such configuration can suppress the influence of thermal drift or the like because no heat is applied directly to the optical substrate of the electro-optic material. In addition, breakage and warpage of the substrate due to heat are also mitigated. Further, quartz used for the PLC has a low thermal conductivity, approximately one-fifth of that of the LN substrate (approximately 1 W/(m·K)), and therefore, a desired phase difference can be maintained with a low power consumption, and thus, the operating point becomes stabilized.

    摘要翻译： 提供了具有高稳定性的光调制器。 在根据本发明的光调制器中，在电光材料的光学基板上进行通过电光效应的相位调制，同时通过热光学效应设置工作点在平面光波 石英，硅等的电路（PLC）基板。 这种构造可以抑制热漂移等的影响，因为没有热直接施加到电光材料的光学基板。 此外，还减轻了由于热而引起的基板的断裂和翘曲。 此外，用于PLC的石英具有低导热性，大约是LN衬底的约五分之一（约1W /（m·K）），因此可以以低功耗维持期望的相位差 因此，工作点变得稳定。