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    • 2. 发明公开
    • OPTICAL MODULATOR
    • einem electro-optischen调制器中的Unterdrückungvon Mikrowellenstrahlungsmodeneffekten
    • EP1950602A1
    • 2008-07-30
    • EP06832545.5
    • 2006-11-13
    • SUMITOMO OSAKA CEMENT CO., LTD.
    • SHIMIZU, RyoFUJITA, TakahisaSUGAMATA, Toru
    • G02F1/03
    • G02F1/0327G02F2202/20
    • An optical modulator is provided which suppresses a radiation mode of a microwave generated in a connection substrate or a termination substrate from entering a signal electrode of the optical modulator and suppresses modulation properties from being degraded.
      The optical modulator includes an optical modulation element (1) having a substrate with an electro-optic effect, an optical waveguide formed on the substrate, and a modulating electrode (or a signal electrode (2)) for modulating light passing through the optical waveguide; and a connect ion substrate (4), arranged outside the substrate, for supplying the optical modulation element with a microwave signal operating the optical modulation element. A signal input terminal (22) and a signal output terminal (23) are formed on the connection substrate (20).
      A recombination suppression unit that suppresses a radiation mode (24) of the microwave signal input to the signal input terminal (22) from being recombined with the signal output terminal (23) is provided on the connection substrate.
    • 提供一种光调制器,其抑制在连接基板或终端基板中产生的微波的辐射模式进入光调制器的信号电极并抑制调制特性降低。 光调制器包括具有电光效应的基板的光调制元件(1),形成在基板上的光波导和用于调制通过光波导的光的调制电极(或信号电极(2)) ; 以及布置在所述基板外部的用于向所述光调制元件供给操作所述光调制元件的微波信号的连接离子基板(4)。 信号输入端子(22)和信号输出端子(23)形成在连接基板(20)上。 抑制输入到信号输入端子(22)的微波信号的放射模式(24)与信号输出端子(23)重新组合的复合抑制单元设置在连接基板上。
    • 5. 发明公开
    • OPTICAL MODULATOR
    • OPTISCHER调制器
    • EP1953584A1
    • 2008-08-06
    • EP06822646.3
    • 2006-10-31
    • SUMITOMO OSAKA CEMENT CO., LTD.
    • SHIMIZU, RyoFUJITA, TakahisaSUGAMATA, Toru
    • G02F1/035
    • G02F1/0123G02F1/0305G02F1/0356
    • It is an object of the invention to provide an optical modulator in which a connection substrate or a terminal substrate is disposed outside an optical modulation element and which can maintain at a proper voltage amplitude value a modulation signal applied to an optical modulation element. An optical modulator includes: a substrate having electro-optic effect; an optical waveguide formed on the substrate; an optical modulation element 1 having a modulation electrode (which includes a signal electrode 2) for modulating light passing through the optical waveguide; and a connection substrate 20 disposed outside the substrate to supply a modulation signal for driving the optical modulation element to the optical modulation element. In the optical modulator, a signal line for propagating the modulation signal is formed on the connection substrate, and a modulation signal monitoring output line 25 for monitoring the voltage amplitude of the modulation signal is provided right in front of an end of the signal line for supplying the modulation signal from the signal line to the optical modulation element.
    • 本发明的目的是提供一种光学调制器,其中连接基板或端子基板设置在光学调制元件外部,并且可以将施加到光学调制元件的调制信号保持在适当的电压振幅值。 光调制器包括:具有电光效应的基板; 形成在基板上的光波导; 具有用于调制通过光波导的光的调制电极(包括信号电极2)的光调制元件1; 以及设置在基板外部的连接基板20,以向光调制元件提供用于驱动光调制元件的调制信号。 在光调制器中,在连接基板上形成用于传播调制信号的信号线,并且用于监视调制信号的电压振幅的调制信号监视输出线25位于信号线的端部的正前方, 将信号线的调制信号提供给光调制元件。