%0 Journal Article %T Tunable optical filters based on photorefractive holographic gratings %A Petrov, Victor M. %A Chamrai, A. V. %A Petter, J. %A Petrov, M. P. %J Proceedings of SPIE %V 5135 %N 1 %P 123-129 %@ 0277-786X %D 2003-09-05 %I SPIE %~ DeepDyve