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Voltage controlled oscillator, FM signal optical transmitter, FM signal optical receiver and FM signal optical transmission system
Voltage controlled oscillator, FM signal optical transmitter, FM signal optical receiver and FM signal optical transmission system
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机译:压控振荡器,调频信号光发射机,调频信号光接收机和调频信号光传输系统
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摘要
Plural subcarrier-multiplexed AM signals 30 are input and narrow-band-FM-modulated by a voltage controlled oscillator 4 including the fundamental carrier wave and higher-order harmonics as the output, and the FM carrier wave component of the higher-order harmonics of the fundamental carrier wave is selectively taken out by a band-rejection filter 5, shifted to the lower frequency side by a frequency converter 7, converted into an optical signal by an electric/optic converter 3 and transmitted.
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