【摘 要】
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A microwave-chip-based coherent multi-frequency RF driver is developed for a channel-interleaved photonic analog-to-digital converter[PADC]system,which comprises a multi-class optical demultiplexer and supports a sampling speed of 40 GSa/s.The generated s
【机 构】
：
State Key Laboratory of Advanced Optical Communication Systems and Networks,Intelligent Microwave Li
论文部分内容阅读
A microwave-chip-based coherent multi-frequency RF driver is developed for a channel-interleaved photonic analog-to-digital converter[PADC]system,which comprises a multi-class optical demultiplexer and supports a sampling speed of 40 GSa/s.The generated signals from the RF driver are adjustable in both amplitude and phase.We analyze the relation-ship between the characteristics of the generated RF driver signals and the demultiplexing performance in theory based on the optical signal-to-distortion ratio[OSDR].It is the most effective parameter to evaluate the performance of the demul-tiplexer in a PADC system without an electronic analog-to-digital converter.By precisely adjusting the amplitude and phase of signals,the OSDR is optimized.The results verify the compatibility between the RF driver and the PADC system.
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