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All-Optical AM-To-FM Up-Conversion for Radio-Over-Fiber

机译:全光AM-To-FM上转换,用于光纤无线电

摘要

A laser source is configured for all-optical AM-FM up-conversion. In one exemplary embodiment, an amplitude modulated (AM) optical input signal containing a baseband signal at a sub-microwave frequency, is injected into the laser source. The amplitude of the AM optical input signal and the optical carrier frequency are adjusted so as to place the laser source in a period-one dynamical state characterized by a transitioning of the laser source from a free-running optical frequency to at least two optical frequencies having a separation distance equal to a period-one microwave frequency. As a result of the period-one dynamical state, a frequency modulated (FM) optical output signal containing the baseband signal carried at the period-one microwave frequency, is propagated out of the laser source. The period-one microwave frequency is operative as a sub-carrier signal.
机译:激光源配置为全光AM-FM上转换。在一个示例性实施例中,将包含亚微波频率的基带信号的调幅(AM)光输入信号注入到激光源中。调节AM光输入信号的幅度和光载波频率,以使激光源处于周期一动态状态,其特征在于激光源从自由运行的光频率转变为至少两个光频率。间隔距离等于周期一的微波频率。作为周期一动态状态的结果,包含以周期一微波频率承载的基带信号的调频(FM)光输出信号从激光源传播出去。周期一的微波频率可作为副载波信号。

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