Potassium and silver ion-exchanged dual-core glass waveguides with gratings


  • Li, M.J.
  • Honkanen, Seppo
  • Wang, W.J.
  • Leonelli, R.
  • Albert, Jacques
  • Najafi, S.I.




A two‐step double ion‐exchange process is employed to produce dual‐core waveguides in glass. First, potassium ion exchange is carried out at 400 °C. Then, silver ion exchange is performed at 300 °C. The fabricated waveguides have low losses, large single‐mode regions, and more symmetrical profiles than single ion‐exchanged waveguides.Etchedgratings are also made in dual‐core waveguides. Very high efficiencies are demonstrated in these waveguides.


AIP Publishing

Peer Review: 

Published in Peer Reviewed Journal

Faculty Name: 

Faculty of Engineering and Design

Department Name: 

Department of Electronics

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