Nature Communications (Jan 2019)

Ultra-high on-chip optical gain in erbium-based hybrid slot waveguides

  • John Rönn,
  • Weiwei Zhang,
  • Anton Autere,
  • Xavier Leroux,
  • Lasse Pakarinen,
  • Carlos Alonso-Ramos,
  • Antti Säynätjoki,
  • Harri Lipsanen,
  • Laurent Vivien,
  • Eric Cassan,
  • Zhipei Sun

DOI
https://doi.org/10.1038/s41467-019-08369-w
Journal volume & issue
Vol. 10, no. 1
pp. 1 – 9

Abstract

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Realizing efficient on-chip amplification in silicon is challenging due to either non-compatible integration or small gain per unit length of the amplifier material. Here, the authors report ultra-high on-chip optical gain in erbium-based hybrid silicon nitride slot waveguides with a monolithic, CMOS-compatible and scalable atomic-layer deposition process.