Thin film optimization design of organic-inorganic hybrids for waveguide high-rejection optical filters


We report the fabrication of transparent, low surface roughness (<0.1 nm), and low-loss (1.5 ± 0.2 dB cm-1, 532 nm) thin films of organic-inorganic hybrids with controlled refractive index values stable under aging. High-rejection optical filters based on first-order Bragg gratings inscribed in channel waveguides were fabricated using UV-laser writing. Their high-rejection figure of merit (∼24 dB) is the best value found until now for organic-inorganic hybrids reinforcing the potential of sol-gel technology in the integration of optoelectronic components based on hybrid materials, namely in the fabrication of cost-effective integrated optics devices. © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.


Vicente C.M.S.; Venkatachaam R.; Ferreira B.M.; Marques P.G.; Marques C.A.F.; Pecoraro E.; Carlos L.D.; André P.S.; Ferreira R.A.S.

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