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    • 8. 发明授权
    • Variable duty cycle optical pulses
    • 可变占空比光脉冲
    • US06721081B1
    • 2004-04-13
    • US10256453
    • 2002-09-26
    • John C. MauroSrikanth RaghavanSergey Y. Ten
    • John C. MauroSrikanth RaghavanSergey Y. Ten
    • G02B2100
    • H04B10/508G02F1/0123G02F1/225G02F2203/26H04B10/25137H04B10/505H04B10/5051
    • A device (16) in a system (10) modulates an optical signal (13) and tunes the duty cycle of the optical signal (13) for optimizing system performance as a response of the duty cycle. The device (16) includes a tunable duty-cycle Mach-Zehnder interferometer (MZI) acting as a pulse-width shaper (160) for modulating the optical signal (13) and tuning the duty cycle of the optical signal (13). The MZI (160) has a transmittance transfer function of the interferometer (160). At least one electrode structure (163) generates a DC voltage and an AC voltage for biasing and controlling the swing of the Mach-Zehnder interferometer (160) with the respective amplitudes of the DC and AC voltages such that the maximum power transmittance point on the transfer function is less than 100% for tuning the duty cycle of the optical signal (13) such that system performance is optimized.
    • 系统(10)中的装置(16)调制光信号(13)并调谐光信号(13)的占空比,以优化作为占空比的响应的系统性能。 装置(16)包括用作调制光信号(13)并调谐光信号(13)的占空比的作为脉宽整形器(160)的可调谐占空比马赫 - 曾德尔干涉仪(MZI)。 MZI(160)具有干涉仪(160)的透射率传递函数。 至少一个电极结构(163)产生DC电压和AC电压,用于利用DC和AC电压的相应振幅来偏置和控制Mach-Zehnder干涉仪(160)的摆动,使得最大功率透射率点 传递函数小于100%用于调整光信号(13)的占空比,从而优化系统性能。