Channel wAveguides in ion-exchanged pyrex by direct UV writing

Sheridan, A.K. and Gawith, C. and Emmerson, G. and Milton, J. and Smith, P. and Wilkinson, J.S. (2004) Channel wAveguides in ion-exchanged pyrex by direct UV writing. Optics Communications, 242 (1-3). pp. 109-114. (https://doi.org/10.1016/j.optcom.2004.08.014)

Abstract

In this paper, we show that UV irradiation can induce a significant refractive index change in Pyrex, a commercial oxide glass which does not contain the most common photosensitiser, germanium. We describe the fabrication of channel waveguides in potassium-ion exchanged Pyrex by UV writing and find the maximum UV-induced change in refractive index to be 1 × 10−3. UV-induced changes in the absorption spectrum are reported and attributed to the formation of defects from iron impurities inherent in the glass. A colour-centre-related model for the observed refractive index change is proposed.

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• Item metadata

  Item type:	Article
  ID code:	38732
  Dates:	Date Event 2004 Published
  Subjects:	Technology > Electrical engineering. Electronics Nuclear engineering
  Department:	Faculty of Engineering > Electronic and Electrical Engineering
  Depositing user:	Pure Administrator
  Date deposited:	27 Mar 2012 11:33
  Last modified:	11 Nov 2024 09:03
  URI:	https://strathprints.strath.ac.uk/id/eprint/38732