The melt structures doped with different content of Gd2O3 have been estimated by means of FTIR and Raman spectroscopy from the corresponding glass structures quenched in water to avoid the experimental difficulties of high temperature measurements, due to the silicate made up of tetrahedral [SiO4] units readily form glasses upon solidification from melt. Raman spectra of Gd2O3 doped soda lime silicate glasses quenched in water were recorded with the INVIA confocal microRaman spectrometer (RENISHAW) equipped with a CCD detector. The 514.5 nm light from Ar+ laser was chosen for sample excitation. Spectral resolution of the Raman spectrometer was 1–2 cm−1, the measurement frequency range is in 100–1500 cm−1. FTIR absorption spectra of Gd2O3 doped soda lime silicate glass frits were also measured on a Fourier transform infrared spectrometer (Nexus) using the KBr disc method, resolution of the instrument was 2 cm−1, in 400–4000 cm−1 region.