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

Kangjia Zheng; Weiwen Zou; Lei Yu; Na Qian; Jianping Chen

doi:10.3788/COL202018.012502

Journals >Chinese Optics Letters >Volume 18 >Issue 1 >Page 012502 > Article

Chinese Optics Letters
Vol. 18, Issue 1, 012502 (2020)

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

Kangjia Zheng, Weiwen Zou^*, Lei Yu, Na Qian, and Jianping Chen

Author Affiliations

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

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DOI: 10.3788/COL202018.012502 Cite this Article Set citation alerts

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 Copy Citation Text

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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.

Keywords

Mach–Zehnder modulator photonic analog-to-digital converter stability optimization