Chinese Optics Letters, 2020, 18 (1): 012502, Published Online: Jan. 7, 2020
Stability optimization of channel-interleaved photonic analog-to-digital converter by extracting of dual-output photonic demultiplexing Download: 774次
Abstract
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.
Kangjia Zheng, Weiwen Zou, Lei Yu, Na Qian, Jianping Chen. Stability optimization of channel-interleaved photonic analog-to-digital converter by extracting of dual-output photonic demultiplexing[J]. Chinese Optics Letters, 2020, 18(1): 012502.