Abstract
Silica optical waveguides have been fabricated on the surface of silicone rubber by photochemical modification of silicone rubber into silica with -laser radiation. The thick silicone was exposed through a thin air layer to generate oxygen radicals that chemically assisted in the silica transformation. Silica waveguides were defined in wide exposure strips by a proximity Cr-on- photomask. Optimum laser processing conditions are presented for generating crack-free waveguides with good optical transparency at red and infrared wavelengths. A propagation loss of is reported at the wavelength.
© 2005 Optical Society of America
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