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    • 5. 发明申请
    • TRAVELING WAVE MACH-ZEHNDER OPTICAL DEVICE
    • 旅行波峰光电设备
    • WO2011071919A1
    • 2011-06-16
    • PCT/US2010/059278
    • 2010-12-07
    • COGO OPTRONICS, INC.
    • PROSYK, Kelvin
    • G02F1/035
    • G02F1/225G02F1/2255G02F2001/212
    • A Mach-Zehnder modulator has an optical splitting element (19) splitting an input optical signal (27) into two optical signals that are conveyed by two optical waveguide arms (24, 25), and an optical combining element (20) combining the two optical signals into an output optica! signal (28). Two traveling wave electrodes (TWEs) (23a, 23b) carry an electrical modulation signal to induce a change in phase of these two optical signals, and include a number of pairs of modulation electrodes positioned adjacent to the waveguide arms (24, 25). At least some of the electrodes (30, 31) in one waveguide arm have a different shape (e.g., length or width) than the electrodes in the other waveguide arm to alter the effectiveness of the electrodes in inducing a phase change in the two optical signals.
    • 马赫 - 策德尔调制器具有将输入光信号(27)分成由两个光波导臂(24,25)传送的两个光信号的光分离元件(19),以及组合两个光耦合元件 光信号转换成输出光学! 信号(28)。 两个行波电极(TWE)(23a,23b)携带电调制信号以引起这两个光信号的相位变化,并且包括邻近波导臂(24,25)定位的多对调制电极。 一个波导臂中的至少一些电极(30,31)具有与另一个波导臂中的电极不同的形状(例如,长度或宽度),以改变电极在引起两个光学器件中的相位变化的有效性 信号。