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    • 2. 发明授权
    • Optical modulators
    • 光调制器
    • US07778497B2
    • 2010-08-17
    • US12401753
    • 2009-03-11
    • Osamu MitomiKenji AokiTetsuya EjiriAkiyoshi IdeJungo KondoYuichi Iwata
    • Osamu MitomiKenji AokiTetsuya EjiriAkiyoshi IdeJungo KondoYuichi Iwata
    • G02F1/035G02B6/26
    • G02F1/0356G02B6/12007
    • An optical modulator having an optical modulation part and a connection part for an optical fiber propagating light. The optical modulation part has a modulation substrate of an electro-optic material, a modulation optical waveguide formed on the modulation substrate, a high frequency interaction part for applying a voltage to the modulation optical waveguide to modulate the propagation of light, a first supporting substrate and a first adhesion layer for adhering the modulation substrate to the first supporting substrate. The connection part has a connection substrate of an electro-optic material, a connection optical waveguide formed on the connection substrate, a second supporting substrate, and a second adhesion layer for adhering the connection substrate to the second supporting substrate. The modulation substrate is adhered to the connection substrate. The first supporting substrate is adhered to the second supporting substrate. The modulation optical waveguide is connected to the connection optical waveguide.
    • 一种具有光学调制部分和用于光纤传播光的连接部分的光调制器。 光调制部具有电光材料的调制基板,形成在调制基板上的调制光波导,向调制光波导施加电压以调制光的传播的高频相互作用部,第一支撑基板 以及用于将调制基板粘附到第一支撑基板的第一粘合层。 连接部具有电光材料的连接基板,形成在连接基板上的连接光波导,第二支撑基板和用于将连接基板粘接到第二支撑基板的第二粘合层。 调制基板粘附到连接基板。 第一支撑基板粘附到第二支撑基板。 调制光波导连接到连接光波导。
    • 8. 发明授权
    • Optical Modulator
    • 光调制器
    • US07689066B2
    • 2010-03-30
    • US11841188
    • 2007-08-20
    • Jungo KondoOsamu MitomiKenji AokiYuichi IwataTetsuya Ejiri
    • Jungo KondoOsamu MitomiKenji AokiYuichi IwataTetsuya Ejiri
    • G02F1/035G02B6/26
    • G02F1/2255G02F1/0123G02F2001/212G02F2201/58G02F2203/20
    • An optical modulator is provided for modulating light propagating in a three-dimensional optical waveguide 5 by applying a voltage thereto. The optical modulator has the three-dimensional optical waveguide 5 including at least one pair of branch optical waveguides 5c and 5d, a multiplexing part 5e of the branch optical waveguides and an emission part 5f provided in the downstream of the multiplexing part, modulation electrodes 3A, 3B and 4 for applying a signal voltage for modulating light propagating in the three-dimensional optical waveguide 5, and guiding waveguides 6A and 6B for guiding primary mode light from the multiplexing part. Thickness of the substrate is 20 μm or less at least under the modulation electrodes, and an operation point of the optical modulator is controlled by changing, based on light output from the guiding waveguides, DC bias applied onto the modulation electrodes.
    • 提供了一种光调制器,用于通过向其施加电压来调制在三维光波导5中传播的光。 光调制器具有包括至少一对分支光波导5c和5d的三维光波导5,分支光波导的复用部分5e和设置在复用部分下游的发射部分5f,调制电极3A ,3B和4,用于施加用于调制在三维光波导5中传播的光的信号电压,以及引导波导6A和6B以引导来自复用部分的初级模式光。 至少在调制电极下方,基板的厚度为20μm以下,通过基于来自引导波导的光的输出,施加到调制电极上的DC偏置来改变光调制器的操作点。