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

56 Scopus citations

Abstract

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
Volume21
Issue number10
DOIs
StatePublished - May 20 2013

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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