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    • 6. 发明授权
    • Linear broadband signal generator using primary and secondary optical
modulators
    • 线性宽带信号发生器使用初级和次级光学调制器
    • US5126870A
    • 1992-06-30
    • US455104
    • 1989-12-22
    • Richard M. MurphyPeter W. CornishGregory S. Maurer
    • Richard M. MurphyPeter W. CornishGregory S. Maurer
    • G02F1/03H04B10/155
    • G02F1/0327H04B10/5053H04B10/58G02F2203/19
    • A linear optical broadband signal generator includes primary and secondary optical modulators whose outputs are combined so as to minimize intermodulation distortion of a modulated optical signal. A constant amplitude optical signal is split differentially so as to create primary and secondary power levels, the primary and secondary power levels being inputted into the primary and secondary modulators. An electrical input to one of the modulators is differentially attenuated so as to reduce third order modulation products when modulated outputs of the modulators are combined. In addition, the total modulated optical output power is maximized by adjustment to one of the outputs of one of the modulators so that its phase is more in line with a phase of the output of the other modulator so as to maximize first order products of the combined output.
    • 线性光学宽带信号发生器包括其输出被组合以便最小化调制光信号的互调失真的初级和次级光调制器。 恒定幅度光信号被差分地分离,以产生初级和次级功率电平,主功率电平和次级功率电平被输入到初级和次级调制器。 对一个调制器的电输入被差分衰减,以便在调制器的调制输出被组合时减少三阶调制产物。 此外,通过调整一个调制器的一个输出使得总调制光输出功率最大化,使得其相位更与一个调制器的输出的相位相一致,从而最大化第一阶乘积 组合输出。