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Optimization of optical signal-to-distortion ratio in a channel-interleaved photonic ADC via a coherent multi-frequency RF driver [Early Posting]

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摘要

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 relationship between the characteristics of generated RF driver signals and the demultiplexing performance in theory based on the OSDR. It is the most effective parameter to evaluate the performance of the demultiplexer in a PADC system without an EADC. 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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作者单位:

    Shanghai Jiao Tong University - Minhang Campus
    Shanghai Jiao Tong University - Minhang Campus
    Shanghai Jiao Tong University - Minhang Campus
    Shanghai Jiao Tong University

引用该论文

Li Junyan,Qian Na,Hua Shiyu,Zou Weiwen. Optimization of optical signal-to-distortion ratio in a channel-interleaved photonic ADC via a coherent multi-frequency RF driver[J].Chinese Optics Letters,2021,19(8):08.