Subwavelength grating crossings for silicon wire waveguides Academic Article uri icon

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abstract

  • We report on the design, simulation and experimental demonstration of a new type of waveguide crossing based on subwavelength gratings in silicon waveguides. We used 3D finite-difference time-domain simulations to minimize loss, crosstalk and polarization dependence. Measurement of fabricated devices show that our waveguide crossings have a loss as low as -0.023 dB/crossing, polarization dependent loss of < 0.02 dB and crosstalk <-40 dB.

authors

  • Bock, Przemek J
  • Cheben, Pavel
  • Schmid, Jens H
  • Lapointe, Jean
  • Delâge, André
  • Xu, Dan-Xia
  • Janz, Siegfried
  • Densmore, Adam
  • Hall, Trevor J

publication date

  • July 19, 2010