The photorefractivity of a sol-gel glass was investigated using two-beam-coupling (TBC), degenerate-four-wave-mixing (DFWM), and phase shifting methods. The sol-gel glass was prepared by introducing the following photorefractive elements in the polyethyleneglycol matrix: TNF SG-Gz, SG-MN were used as charge generator, charge transporter, and electrooptic material, respectively. TBC gain of 90 cm(-1) and diffraction efficiency of 46% were obtained at 107 V/mum field. Also we measured the grating build-up and relaxation characteristics. The holographic phase shift was measured to be 51degrees at 107 V/mum field. In order to compare this photorefractive sol-gel glass with inorganic photorefractive crystal, we measured the photorefractive properties of Fe:LiNbO3. As a result we obtained the TBC gain of 50 cm(-1), the diffraction efficiency of 47% and the phase shift of 90degrees for Fe:LiNbO3 sample.