SPECTROSCOPIC STUDIES ON TRIPLY IONIZED SM IN FLUOROPHOSPHATE GLASSES

Visible absorption and Ar+ laser induced fluorescence spectrum has bee n studied for triply ionised Sm doped in a series of new fluorophospha te glasses. The chemical composition of these glasses (in mol percent) is 55% (NaPO3)(6), 19% BaF2, 5% ZnF2, 20% AF and 1% SmF3, where AF=Li F, NaF, KF, LiF+NaF, NaF+KF and KF+LiF. The measured oscillator streng ths have been used to evaluate the Judd-Ofelt intensity parameters and radiative properties. The stimulated emission cross-sections for the following four transitions, (4)G(5/2)-->H-6(5/2,7/2,9/2,11/2) has been estimated.