Abstract
For the first time it is demonstrated that permanent optical waveguides can be self-written in a solid acrylamide/polyvinyl alcohol photopolymer material. The novel (to our knowledge) technique used to prepare the polymeric medium used is described. It is demonstrated that the resulting waveguides formed can be used to guide different wavelengths. A standard theoretical model is used to predict both the evolution of the light intensity distribution and the channel formation inside the material during the exposure. The experimental results and the numerical simulations are compared, and good agreement is obtained.
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