摘要
We investigate a channel-interleaved photonic analog-to-digital conversion(PADC)system’s ability to work stably over a long duration with an optimal driving voltage.The influence of optimum bias point drift of a Mach–Zehnder modulator(MZM)-based photonic switch on this system was analyzed theoretically and experimentally.The feasibility of extracting feedback signals from the PADC system was derived.A high-stability channel-interleaved PADC was constructed by extracting a feedback signal from a parallel demultiplexing module to control the MZM-based photonic switch’s driving voltage.Consequently,the amplitude mismatch between the channels was limited to within 0.3 d B over 12 hours of operation.
作者
郑康佳
邹卫文
于磊
钱娜
陈建平
Kangjia Zheng;Weiwen Zou;Lei Yu;Na Qian;Jianping Chen(State Key Laboratory of Advanced Optical Communication Systems and Networks,Intelligent Microwave Lightwave Integration Innovation Center(iMLic),Department of Electronic Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)
基金
This work was partially supported by the National Natural Science Foundation of China(Nos.61571292,61535006,and 61822508).