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Poling effect of a charge-trapping layer in glass waveguides

Authors
  • Ren, Yitao
  • Marckmann, Carl Johan
  • Jacobsen, Rune Shim
  • Kristensen, Martin
Publication Date
Jan 01, 2004
Source
Online Research Database In Technology
License
Unknown
External links

Abstract

Germanium-doped multi-layer waveguides containing a silicon oxy-nitride layer as a charge trapper are thermally poled in an air environment. Compared to the waveguides without the trapping layer, the induced linear electro-optic coefficient increases more than 20%. A comparable rise in the internal field is found. Our results demonstrate an optimization of the optical nonlinearity by shaping the built-in internal field with the charge-trapping layer.

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