New design for a variable optical attenuator based on a bent channel waveguide Academic Article uri icon


  • We present a new method for bend loss control in a curved channel optical waveguide and employ it in a novel design of a thermo-optic variable optical attenuator. We show that the introduced asymmetric refractive index profile of the wave-guide structure, combined with the optimal placement of the heating electrodes, leads to a significant increase of the dynamic range of the attenuator.

altmetric score

  • 3

author list (cited authors)

  • Tomljenovic-Hanic, S., & Krolikowski, W.

citation count

  • 5

publication date

  • August 2003