Ultra-low crosstalk, CMOS compatible waveguide crossings for densely integrated photonic interconnection networks

Adam M. Jones, Christopher T. DeRose, Anthony L. Lentine, Douglas C. Trotter, Andrew L. Starbuck, Robert A Norwood

Research output: Contribution to journalArticle

54 Scopus citations


We explore the design space for optimizing CMOS compatible waveguide crossings on a silicon photonics platform. This paper presents simulated and experimental excess loss and crosstalk suppression data for vertically integrated silicon nitride over silicon-on-insulator waveguide crossings. Experimental results show crosstalk suppression exceeding -49/-44 dB with simulation results as low as -65/-60 dB for the TE/TM mode in a waveguide crossing with a 410 nm vertical gap.

Original languageEnglish (US)
Pages (from-to)12002-12013
Number of pages12
JournalOptics Express
Issue number10
Publication statusPublished - May 20 2013


ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Medicine(all)

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