All-optical quantization scheme by slicing the supercontinuum in a chalcogenide horizontal slot waveguide

Shuai Kang, Jinhui Yuan, Zhe Kang, Xianting Zhang, Xue Kang, Zheng Guo, Feng Li, Binbin Yan, Kuiru Wang, Xinzhu Sang, Chongxiu Yu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

8 Citations (Scopus)


In this paper, we propose an integratable spectral quantization scheme for all-optical analog-to-digital conversion (AOADC) by slicing the supercontinuum, which is generated in a chalcogenide (As2S3) horizontal slot waveguide. The numerical simulation results show that a 4-bit quantization resolution is successfully achieved along with a signal-to-noise ratio of 23.96 dB and an effective number of bit (ENOB) of 3.98 bit. The required As2S3 waveguide length and input peak power are only 1.5 cm and 900 mW, respectively, owing to the high nonlinear coefficient of 115.8 W-1/m. It is believed that this proposed scheme can find important applications in the photonic integratable AOADC with low power consumption.

Original languageEnglish
Article number085502
JournalJournal of Optics (United Kingdom)
Issue number8
Publication statusPublished - 1 Aug 2015


  • all-optical analog-to-digital conversion
  • chalcogenide horizontal slot waveguide
  • spectral quantization
  • supercontinuum

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics

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