UV written channel waveguides in ion-exchanged pyrex

A.K. Sheridan, C. Gawith, G. Emmerson, P. Smith, J.S. Wilkinson

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In this paper we demonstrate that a positive change in refractive index can be induced by UV radiation in bulk Pyrex, an inexpensive, commercially available glass that is not specifically designed to be photosensitive. We describe the fabrication of channel waveguides in Pyrex by direct UV writing and show that a potassium-ion exchanged layer can be used to host single mode waveguides. The change in refractive index due to the UV writing is found to be 2x10−3.

Original languageEnglish
Number of pages4
Publication statusPublished - Apr 2003
EventEuropean Conference on Integrated Optics - Prague , Czech Republic
Duration: 2 Apr 20034 Apr 2003


ConferenceEuropean Conference on Integrated Optics
Abbreviated titleECIO 2003
Country/TerritoryCzech Republic


  • UV writing
  • channel waveguides
  • ion-exchanged
  • pyrex
  • planar waveguides
  • ion-exchange


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