于磊博士的工作——Switching Response of Dual-Output Mach-Zehnder Modulator in Channel-Interleaved Photonic Analog-to-Digital Converter的相关研究成果近期已发表在Chinese Optics Letters杂志上，该工作得到了国家自然科学基金的部分资助 (grant no. 61822508, 61571292 and 61535006)。
摘要：This Letter theoretically and experimentally studies the response of photonic switching in a channel-interleaved photonic analog-to-digital converter (PADC) with high sampling rate and wide input frequency range. A figure of merit (FoM) is introduced to evaluate the switching response of the PADC when a dual-output Mach-Zehnder modulator (MZM) is served as the photonic switch to parallelize the sampled pulse train into two channels. After the optimization of the FoM and utilization of channel-mismatch compensation algorithm, the system bandwidth of PADC is expanded and the signal-to-distortion ratio (SDR) is enhanced.