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    Optical frequency shifter and optical modulator using the same
    1.
    发明授权
    Optical frequency shifter and optical modulator using the same 有权
    光移频器和使用其的光调制器

    公开(公告)号：US08948546B2

    公开(公告)日：2015-02-03

    申请号：US13984480

    申请日：2012-02-15

    申请人： Takashi Saida ,  Hiroshi Yamazaki ,  Takashi Goh ,  Ken Tsuzuki ,  Shinji Mino

    发明人： Takashi Saida ,  Hiroshi Yamazaki ,  Takashi Goh ,  Ken Tsuzuki ,  Shinji Mino

    IPC分类号： G02F1/01 ,  H04B10/50 ,  G02B6/26 ,  G02B6/12 ,  G02F1/03 ,  H04B10/548

    CPC分类号： G02F1/011 ,  H04B10/5053 ,  H04B10/548

    摘要： An object of the present invention is to provide a temperature-independent optical frequency shifter for generating sub-carriers with a miniaturizable configuration, as well as to provide an all-optical OFDM modulator using the same that is compact, has low temperature dependence, and is even compatible with different frequency grids. Provided is an optical frequency shifter and an optical modulator using the same, the optical frequency shifter comprises one input optical port, a 1-input, 2-output optical coupler optically connected thereto, two Mach-Zehnder modulation units individually optically connected to the two outputs thereof, a 2-input, 2-output optical coupler optically connected to the individual outputs thereof, and two output optical ports optically connected to the outputs thereof, wherein the two Mach-Zehnder modulation units are driven by periodic waveforms at the same frequency whose phases differ from each other by (2p+1)π/2 (p: integer).

    摘要翻译： 本发明的目的是提供一种用于产生具有小型化配置的子载波的与温度无关的光学移频器，并且提供使用紧凑的，具有低温度依赖性的全光OFDM调制器，以及 甚至兼容不同的频率网格。 提供一种光学移频器和使用其的光调制器，该光学移频器包括一个输入光端口，与其光学连接的1输入2输出光耦合器，两个马赫 - 曾德调制单元，其光学连接到两个 光耦合到其各个输出的2输入2输出光耦合器和与其输出光学连接的两个输出光端口，其中两个马赫 - 策德尔调制单元以相同频率的周期波形驱动 其相位彼此相差（2p + 1）＆pgr; / 2（p：整数）。

    OPTICAL FREQUENCY SHIFTER AND OPTICAL MODULATOR USING THE SAME
    3.
    发明申请
    OPTICAL FREQUENCY SHIFTER AND OPTICAL MODULATOR USING THE SAME 有权
    光学透镜和使用该光学调制器的光学调制器

    公开(公告)号：US20130315524A1

    公开(公告)日：2013-11-28

    申请号：US13984480

    申请日：2012-02-15

    申请人： Takashi Saida ,  Hiroshi Yamazaki ,  Takashi Goh ,  Ken Tsuzuki ,  Shinji Mino

    发明人： Takashi Saida ,  Hiroshi Yamazaki ,  Takashi Goh ,  Ken Tsuzuki ,  Shinji Mino

    IPC分类号： G02F1/01

    CPC分类号： G02F1/011 ,  H04B10/5053 ,  H04B10/548

    摘要： An object of the present invention is to provide a temperature-independent optical frequency shifter for generating sub-carriers with a miniaturizable configuration, as well as to provide an all-optical OFDM modulator using the same that is compact, has low temperature dependence, and is even compatible with different frequency grids. Provided is an optical frequency shifter and an optical modulator using the same, the optical frequency shifter comprises one input optical port, a 1-input, 2-output optical coupler optically connected thereto, two Mach-Zehnder modulation units individually optically connected to the two outputs thereof, a 2-input, 2-output optical coupler optically connected to the individual outputs thereof, and two output optical ports optically connected to the outputs thereof, wherein the two Mach-Zehnder modulation units are driven by periodic waveforms at the same frequency whose phases differ from each other by (2p+1) π/2 (p: integer).

    摘要翻译： 本发明的目的是提供一种用于产生具有小型化配置的子载波的与温度无关的光学移频器，并且提供使用紧凑的，具有低温度依赖性的全光OFDM调制器，以及 甚至兼容不同的频率网格。 提供一种光学移频器和使用其的光调制器，该光学移频器包括一个输入光端口，与其光学连接的1输入2输出光耦合器，两个马赫 - 曾德调制单元，其光学连接到两个 光耦合到其各个输出的2输入2输出光耦合器和与其输出光学连接的两个输出光端口，其中两个马赫 - 策德尔调制单元以相同频率的周期波形驱动 其相位彼此不同（2p + 1）pi / 2（p：整数）。

    OPTICAL COMPONENT
    4.
    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。

    Advanced-format optical modulator with low power consumption and low-loss characteristics
    5.
    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 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。