Switching response of dual-output Mach-Zehnder modulator in channel-interleaved photonic analog-to-digital converter

• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2018,（12）
• 页码范围: 16-19
• 页数: 4页
• 语种: 英文
• DOI: 10.3788/COL201816.120602

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 MachZehnder modulator (MZM) serves as the photonic switch to parallelize the sampled pulse train into two channels.After the optimization of the FoM and utilization of the channel-mismatch compensation algorithm,the system bandwidth of PADC is expanded and the signal-to-distortion ratio is enhanced.