Optoelectronics Letters

, Volume 14, Issue 6, pp 429–433 | Cite as

Correction of timing mismatches between two channels for photonic analog-to-digital converters

  • He Zhang (张贺)
  • Gui-ling Wu (吴龟灵)
  • Cheng Wang (王成)
  • Jian-ping Chen (陈建平)


This paper presents a scheme to identify and compensate the timing mismatches between two channels for time interleaved photonic analog-to-digital converters (TIPADCs). The impact of electro-optic sampling is removed by preprocessing firstly. Then a calibration method combining chopping processing and a Hilbert transform is proposed to identify the timing mismatches, which can be further compensated by using various mature compensation algorithms. The principle of the proposed method is derived theoretically. The performance of the scheme is analyzed by simulation. The results show that the harmonic induced by timing mismatches can be suppressed by more than 30 dB using the proposed correction scheme.


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Copyright information

© Tianjin University of Technology and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • He Zhang (张贺)
    • 1
  • Gui-ling Wu (吴龟灵)
    • 1
  • Cheng Wang (王成)
    • 1
  • Jian-ping Chen (陈建平)
    • 1
  1. 1.State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic EngineeringShanghai Jiao Tong UniversityShanghaiChina

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