Contradirectional couplers in silicon-on-insulator rib waveguides

  • Shi W
  • Wang X
  • Zhang W
 et al. 
  • 39

    Readers

    Mendeley users who have this article in their library.
  • 45

    Citations

    Citations of this article.

Abstract

We demonstrate contradirectional couplers in silicon-on-insulator rib waveguides using a CMOS compatible technology, in which a periodic dielectric perturbation is introduced in the coupling region between two different-sized rib waveguides. This structure enables high fabrication tolerances for narrow-bandwidth add-drop filters, using commercially available deep-ultraviolet lithography, that do not suffer from having a free spectral range. The simulation using coupled-mode theory and mode-profile calculations shows good agreement with experiment. A narrow bandwidth of 0.35 nm and a low loss of less than 1 dB have been achieved experimentally.

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Get full text

Authors

  • W. Shi

  • X. Wang

  • W. Zhang

  • L. Chrostowski

  • N. A. F. Jaeger

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free