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    • 5. 发明授权
    • Optical modulator for producing a controllable chirp
    • 用于产生可控啁啾的光学调制器
    • US5408544A
    • 1995-04-18
    • US268175
    • 1994-06-29
    • Minoru Seino
    • Minoru Seino
    • G02F1/017G02F1/035G02F1/225G02B6/10
    • G02F1/2255G02F2203/25
    • An optical modulator comprises an optical waveguide provided on an electro-optic substrate and formed of a first region for optical phase modulation and a second region for optical amplitude modulation cascaded with each other on the substrate, a signal electrode covering the optical waveguide for the first and second regions, and a ground electrode covering a surface of the substrate for the first and second regions, wherein the signal electrode includes an electrode strip extending on the surface of the substrate to continuously cover the optical waveguide from the first region to the second region, and wherein the ground electrode includes an electrode strip extending from the first region to the second region and covering the optical waveguide only in the first region.
    • 一种光学调制器,包括设置在电光基板上并由用于光学相位调制的第一区域和在基板上彼此级联的用于光学幅度调制的第二区域形成的光波导,覆盖光波导的信号电极用于第一 和第二区域,以及覆盖用于第一和第二区域的基板的表面的接地电极,其中信号电极包括在基板的表面上延伸的电极条,以从第一区域连续覆盖光波导至第二区域 ,并且其中所述接地电极包括从所述第一区域延伸到所述第二区域并仅在所述第一区域中覆盖所述光波导的电极条。