Stability optimization of channel-interleaved photonic analog-to-digital converter by extracting of dual-output photonic demultiplexing

• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2020,（1）
• 页码范围: 95-99
• 页数: 5页
• 语种: 英文
• DOI: 10.3788/COL202018.012502

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 dB over 12 hours of operation.