Applied Physics B

, 104:931

Integrated optical attenuator based on mechanical deformation of an elastomer layer

  • N. Galler
  • H. Ditlbacher
  • A. Hohenau
  • A. Leitner
  • F. R. Aussenegg
  • J. R. Krenn
Article

Abstract

We propose an optical attenuator concept based on a polymer waveguide coupled to an elastomer thin film. The thickness of the elastomer layer can be controlled by Coulomb force-induced squeezing in a capacitor geometry. Thereby resonant coupling between the light modes in the waveguide and the elastomer layer is achieved. We predict close to 100% modulation contrast and about 40% transmission for an about 200 μm long device. In addition, we demonstrate experimentally a proof-of-principle of the attenuator device.

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Copyright information

© Springer-Verlag 2011

Authors and Affiliations

  • N. Galler
    • 1
  • H. Ditlbacher
    • 1
  • A. Hohenau
    • 1
  • A. Leitner
    • 1
  • F. R. Aussenegg
    • 1
  • J. R. Krenn
    • 1
  1. 1.Institute of Physics and Erwin Schrödinger Institute for Nanoscale ResearchKarl-Franzens-UniversityGrazAustria

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